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The Cidr Report
by cidr-report＠potaroo.net 22 Oct '04

22 Oct '04

This report has been generated at Fri Oct 22 21:44:31 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 15-10-04 146802 101029 16-10-04 146969 100417 17-10-04 146823 100433 18-10-04 146815 101032 19-10-04 147048 101156 20-10-04 147106 101176 21-10-04 147089 100943 22-10-04 147143 100940 AS Summary 18222 Number of ASes in routing system 7434 Number of ASes announcing only one prefix 1408 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86713344 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 22Oct04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 147045 101011 46034 31.3% All ASes AS18566 746 7 739 99.1% CVAD Covad Communications AS4134 827 181 646 78.1% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 790 219 571 72.3% TWTC Time Warner Telecom AS7018 1408 976 432 30.7% ATTW AT&T WorldNet Services AS7843 497 97 400 80.5% ADELPH-13 Adelphia Corp. AS6197 808 421 387 47.9% BNS-14 BellSouth Network Solutions, Inc AS22773 394 19 375 95.2% CXA Cox Communications Inc. AS27364 411 37 374 91.0% ARMC Armstrong Cable Services AS22909 407 34 373 91.6% CMCS Comcast Cable Communications, Inc. AS701 1231 888 343 27.9% UU UUNET Technologies, Inc. AS6478 415 93 322 77.6% ATTW AT&T WorldNet Services AS1239 946 634 312 33.0% SPRN Sprint AS17676 367 63 304 82.8% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 336 33 303 90.2% CNCNET-CN China Netcom Corp. AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS4766 532 266 266 50.0% KIXS-AS-KR Korea Telecom AS21502 261 3 258 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS14654 261 6 255 97.7% WAYPOR-3 Wayport AS6140 369 123 246 66.7% IMPSA ImpSat AS15557 343 107 236 68.8% LDCOMNET LDCOM NETWORKS AS2386 847 619 228 26.9% ADCS-1 AT&T Data Communications Services AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS1221 810 583 227 28.0% ASN-TELSTRA Telstra Pty Ltd AS22291 283 69 214 75.6% CC04 Charter Communications AS6198 429 219 210 49.0% BNS-14 BellSouth Network Solutions, Inc AS721 720 514 206 28.6% DNIC DoD Network Information Center AS4814 206 6 200 97.1% CHINA169-BBN CNCGROUP IP network¡ªChina169 Beijing Broadband Network AS3356 645 446 199 30.9% LEVEL3 Level 3 Communications AS5668 403 211 192 47.6% CIH-12 CenturyTel Internet Holdings, Inc. AS15270 223 37 186 83.4% PDP-14 PaeTec.net -a division of PaeTecCommunications, Inc. Total 16540 7026 9514 57.5% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS29393 CLUEFULCOLO-AS AS for Cluefulcolo.net 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 200.26.216.0/24 AS10834 Telefonica Data Argentina S.A. 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.170.14.0/23 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.47.254.0/24 AS701 UU UUNET Technologies, Inc. 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 210.4.0.0/18 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet 210.4.0.0/19 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet 210.4.32.0/19 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/23 AS11937 TRXI TRX Inc. 216.145.132.0/22 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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New IPv6 Address Block Allocated to RIPE NCC
by Filiz Yilmaz 18 Oct '04

18 Oct '04

Dear Colleagues, The RIPE NCC received the IPv6 address range 2001:4A00::/23 from the IANA in October 2004. You may wish to adjust any filters you have in place accordingly. More information on the IP space administered by the RIPE NCC can be found on our web site at: <https://www.ripe.net/ripe/docs/smallest-alloc-sizes.html> Regards, -- Filiz Yilmaz RIPE NCC

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Weekly Routing Table Report
by Routing Table Analysis 15 Oct '04

15 Oct '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 16 Oct, 2004 Analysis Summary ---------------- BGP routing table entries examined: 148961 Prefixes after maximum aggregation: 88009 Unique aggregates announced to Internet: 71207 Total ASes present in the Internet Routing Table: 18259 Origin-only ASes present in the Internet Routing Table: 15851 Origin ASes announcing only one prefix: 7439 Transit ASes present in the Internet Routing Table: 2408 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 28 Prefixes from unregistered ASNs in the Routing Table: 60 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 16 Number of addresses announced to Internet: 1344544620 Equivalent to 80 /8s, 36 /16s and 31 /24s Percentage of available address space announced: 36.3 Percentage of allocated address space announced: 58.6 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 68570 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 28814 Total APNIC prefixes after maximum aggregation: 14309 Prefixes being announced from the APNIC address blocks: 27056 Unique aggregates announced from the APNIC address blocks: 14287 APNIC Region origin ASes present in the Internet Routing Table: 2155 APNIC Region origin ASes announcing only one prefix: 651 APNIC Region transit ASes present in the Internet Routing Table: 327 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 164826496 Equivalent to 9 /8s, 211 /16s and 13 /24s Percentage of available APNIC address space announced: 75.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 84631 Total ARIN prefixes after maximum aggregation: 51391 Prefixes being announced from the ARIN address blocks: 64589 Unique aggregates announced from the ARIN address blocks: 23039 ARIN Region origin ASes present in the Internet Routing Table: 9632 ARIN Region origin ASes announcing only one prefix: 3463 ARIN Region transit ASes present in the Internet Routing Table: 927 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 234033664 Equivalent to 13 /8s, 243 /16s and 18 /24s Percentage of available ARIN address space announced: 69.7 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 27759 Total RIPE prefixes after maximum aggregation: 19265 Prefixes being announced from the RIPE address blocks: 24592 Unique aggregates announced from the RIPE address blocks: 16116 RIPE Region origin ASes present in the Internet Routing Table: 5918 RIPE Region origin ASes announcing only one prefix: 3194 RIPE Region transit ASes present in the Internet Routing Table: 1026 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 173698176 Equivalent to 10 /8s, 90 /16s and 108 /24s Percentage of available RIPE address space announced: 60.9 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6473 Total LACNIC prefixes after maximum aggregation: 2354 Prefixes being announced from the LACNIC address blocks: 6319 Unique aggregates announced from the LACNIC address blocks: 3774 LACNIC Region origin ASes present in the Internet Routing Table: 393 LACNIC Region origin ASes announcing only one prefix: 111 LACNIC Region transit ASes present in the Internet Routing Table: 82 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 16288256 Equivalent to 0 /8s, 248 /16s and 138 /24s Percentage of available LACNIC address space announced: 48.5 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1274 Total AfriNIC prefixes after maximum aggregation: 690 Prefixes being announced from the AfriNIC address blocks: 890 Unique aggregates announced from the AfriNIC address blocks: 680 AfriNIC Region origin ASes present in the Internet Routing Table: 93 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 2069248 Equivalent to 0 /8s, 31 /16s and 147 /24s Percentage of available AfriNIC address space announced: 12.3 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 838 4407 163 Data Communications Bureau 1221 806 1183 580 Telstra Pty Ltd 4766 547 3407 266 Korea Internet Exchange for " 9583 535 41 104 Satyam Infoway Ltd., 4755 373 133 53 Videsh Sanchar Nigam Ltd. Aut 17676 369 5516 54 XTAGE CORPORATION 2907 354 1857 328 SINET Japan 9443 353 69 79 Primus Telecommunications 9929 345 161 33 China Netcom Corp. 17557 317 23 158 Pakistan Telecom 703 311 342 240 UUNET 2764 284 272 232 connect.com.au pty ltd 7474 262 268 197 Optus Communications Pty Ltd 9942 236 73 128 COMindico Australia 4802 234 28 142 Wantree Development 9498 230 50 49 BHARTI BT INTERNET LTD. 9800 230 374 67 CHINA UNICOM 7563 221 48 163 Korea Internet Infrastructure 10036 204 19 185 C&M Communication Co. Ltd. 17974 203 62 10 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1417 6749 986 AT&T WorldNet Services 701 1258 8437 905 UUNET Technologies, Inc. 1239 935 2867 622 Sprint 2386 847 532 610 AT&T Data Communications Serv 6197 808 370 348 BellSouth Network Solutions, 4323 795 638 216 Time Warner Telecom 18566 746 208 6 Covad Communications 721 723 21036 298 DLA Systems Automation Center 3356 641 10954 441 Level 3 Communications, LLC 209 631 3465 499 Qwest 20115 591 427 303 Charter Communications 3561 545 2430 408 Cable & Wireless USA 852 512 1142 398 Telus Advanced Communications 7843 493 698 104 Adelphia Corp. 7132 447 8287 376 SBC Internet Services 6198 433 347 208 BellSouth Network Solutions, 705 431 163 273 UUNET Technologies, Inc. 6478 412 722 93 AT&T Worldnet Services 27364 411 36 19 Armstrong Cable Services 5668 403 87 18 Century Telephone RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 629 2013 520 UUNET - Commercial IP service 3320 302 2486 239 Deutsche Telekom AG 3301 280 1100 270 TeliaNet Sweden 8220 279 461 265 COLT Internet - International 21502 269 40 3 NUMERICABLE is a cabled netwo 680 251 2025 239 DFN-IP service G-WiN 3246 218 476 215 Song Networks 13083 217 51 8 Mannesmann Datenverarbeitung 1257 208 743 180 SWIPnet Swedish IP Network 8708 205 114 183 Romania Data Systems S.A. 5515 201 843 147 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 719 157 288 102 LANLINK autonomous system 3215 156 908 76 France Telecom Transpac 6746 155 30 129 Dynamic Network Technologies, 8866 153 20 7 Bulgarian Telecommunication C 3269 150 1259 67 TELECOM ITALIA 5400 149 207 120 BT Ignite European Backbone 25186 149 154 105 France Telecom Transpac's Tra 3303 147 610 129 Swisscom Ltd LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 346 138 66 ImpSat 8151 305 440 130 UniNet S.A. de C.V. 16814 212 13 7 NSS, S.A. 11172 206 100 54 Servicios Alestra S.A de C.V 6147 185 94 20 Telefonica Del Peru 11664 165 12 30 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 7303 134 60 24 Telecom Argentina Stet-France 6503 124 164 85 AVANTEL, S.A. 11992 101 9 31 Integrated Systems 14117 97 6 8 Telefonica del Sur S.A. 11311 86 8 25 Sinectis S.A. 6535 85 7 19 Chilesat Servicios Empresari 11556 81 41 3 Cable-Wireless Panama 10481 80 32 7 Prima S.A. 14420 80 5 33 ANDINATEL S.A. 4270 79 18 9 Red de Interconexion Universi 15311 76 21 36 Telefonica Empresas 5639 75 8 8 Telecommunications Services o 27716 73 9 16 Eveloz AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 251 631 218 The Internet Solution 5536 113 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 93 276 81 The Internetworking Company o 20928 57 16 1 Noor Advanced Technologies AS 22750 50 3 2 >>UNKNOWN<< 24835 34 34 7 RAYA Telecom - Egypt 9129 33 3 4 UUNET Kenya 6713 31 42 10 Itissalat Al-MAGHRIB 5713 26 125 24 Telkom SA Ltd 14988 26 16 1 Botswana Telecommunications C 8524 25 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 12455 17 4 2 Jambonet Autonomous system 8346 15 7 14 SONATEL-AS Autonomous System 15706 15 4 2 Sudatel Internet Exchange Aut 21491 15 1 4 UTL On-line is RF broadband I 21280 14 2 3 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 746 740 Covad Communications 4134 838 675 Data Communications Bureau 4323 795 579 Time Warner Telecom 6197 808 460 BellSouth Network Solutions, 9583 535 431 Satyam Infoway Ltd., 721 723 425 DLA Systems Automation Center 27364 411 392 Armstrong Cable Services 7843 493 389 Adelphia Corp. 5668 403 385 Century Telephone 22773 391 373 Cox Communications, Inc. Atla 22909 394 369 Comcast Cable Corporation 6467 388 357 E.Spire Communications, Inc. 701 1258 353 UUNET Technologies, Inc. 4755 373 320 Videsh Sanchar Nigam Ltd. Aut 6478 412 319 AT&T Worldnet Services 17676 369 315 XTAGE CORPORATION 1239 935 313 Sprint 9929 345 312 China Netcom Corp. 4355 389 290 EarthLink, Inc. 20115 591 288 Charter Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 24.249.231.0/24 15218 COX Communications 64512 PRIVATE 24.249.232.0/24 15218 COX Communications 64512 PRIVATE 24.249.233.0/24 15218 COX Communications 64512 PRIVATE 24.249.234.0/24 15218 COX Communications 64512 PRIVATE 24.249.235.0/24 15218 COX Communications 65006 PRIVATE 84.18.32.0/19 33831 * 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking 22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.81.0/24 3741 The Internet Solutio 22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.91.0/24 3741 The Internet Solutio 22750 UNALLOCATED 196.44.92.0/24 3741 The Internet Solutio 22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking 22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking 65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit 65456 PRIVATE 220.112.14.0/24 17430 Great Wall Broadband Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.169.171.0/24 10704 Laboratorio Nacional de Compu 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:15 /12:61 /13:137 /14:310 /15:555 /16:8102 /17:2259 /18:3892 /19:9735 /20:10367 /21:7896 /22:10897 /23:12586 /24:81338 /25:235 /26:214 /27:113 /28:53 /29:32 /30:102 /31:0 /32:34 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 731 746 Covad Communications 6197 657 808 BellSouth Network Solutions, 2386 613 847 AT&T Data Communications Serv 7018 567 1417 AT&T WorldNet Services 27364 395 411 Armstrong Cable Services 702 381 629 UUNET - Commercial IP service 1239 375 935 Sprint 9583 372 535 Satyam Infoway Ltd., 4766 367 547 Korea Internet Exchange for " 5668 350 403 Century Telephone 701 346 1258 UUNET Technologies, Inc. 6198 317 433 BellSouth Network Solutions, 20115 301 591 Charter Communications 6467 286 388 E.Spire Communications, Inc. 6517 276 299 Yipes Communications, Inc. 9929 276 345 China Netcom Corp. 13609 266 309 Choice One Communications Inc 21502 266 269 NUMERICABLE is a cabled netwo 4323 252 795 Time Warner Telecom 3320 247 302 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:8 12:1421 13:1 15:5 16:2 17:3 18:1 20:5 24:744 32:138 33:2 38:80 40:54 44:3 47:2 52:3 55:1 56:3 57:20 60:3 61:574 62:509 63:1842 64:2405 65:2071 66:2468 67:438 68:554 69:735 70:88 80:522 81:552 82:312 83:183 84:40 128:127 129:165 130:86 131:183 132:34 134:188 135:17 136:187 137:54 138:181 139:38 140:184 141:108 142:122 143:69 144:164 145:42 146:291 147:94 148:328 149:111 150:87 151:65 152:164 153:67 154:2 155:128 156:57 157:66 158:142 159:163 160:60 161:73 162:375 163:80 164:214 165:158 166:120 167:222 168:369 169:120 170:283 171:9 192:5579 193:2900 194:2154 195:1489 196:647 198:3670 199:3309 200:3808 201:20 202:4971 203:5759 204:3407 205:2087 206:2294 207:2578 208:2130 209:2972 210:1500 211:638 212:1116 213:1202 214:131 215:30 216:3657 217:1054 218:180 219:102 220:263 221:55 222:43 End of report

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The Cidr Report
by cidr-report＠potaroo.net 15 Oct '04

15 Oct '04

This report has been generated at Fri Oct 15 21:44:38 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 08-10-04 146340 100463 09-10-04 146514 100158 10-10-04 145998 100388 11-10-04 146398 100399 12-10-04 146471 100537 13-10-04 146629 100516 14-10-04 146719 100627 15-10-04 146802 100866 AS Summary 18190 Number of ASes in routing system 7415 Number of ASes announcing only one prefix 1397 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86747136 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 15Oct04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 146968 100968 46000 31.3% All ASes AS18566 746 7 739 99.1% CVAD Covad Communications AS4134 817 181 636 77.8% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 794 221 573 72.2% TWTC Time Warner Telecom AS7018 1397 970 427 30.6% ATTW AT&T WorldNet Services AS6197 805 421 384 47.7% BNS-14 BellSouth Network Solutions, Inc AS22773 392 19 373 95.2% CXA Cox Communications Inc. AS22909 394 33 361 91.6% CMCS Comcast Cable Communications, Inc. AS27364 399 41 358 89.7% ARMC Armstrong Cable Services AS701 1242 898 344 27.7% UU UUNET Technologies, Inc. AS6478 406 92 314 77.3% ATTW AT&T WorldNet Services AS1239 946 634 312 33.0% SPRN Sprint AS17676 367 63 304 82.8% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 335 33 302 90.1% CNCNET-CN China Netcom Corp. AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS4766 532 266 266 50.0% KIXS-AS-KR Korea Telecom AS21502 269 3 266 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS14654 258 6 252 97.7% WAYPOR-3 Wayport AS9443 357 108 249 69.7% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6140 367 121 246 67.0% IMPSA ImpSat AS7843 493 265 228 46.2% ADELPH-13 Adelphia Corp. AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS2386 845 618 227 26.9% ADCS-1 AT&T Data Communications Services AS15557 330 103 227 68.8% LDCOMNET LDCOM NETWORKS AS1221 809 583 226 27.9% ASN-TELSTRA Telstra Pty Ltd AS6198 431 219 212 49.2% BNS-14 BellSouth Network Solutions, Inc AS13083 217 8 209 96.3% Mannesmann Datenverarbeitung Autonomes System AS22291 279 71 208 74.6% CC04 Charter Communications AS721 722 516 206 28.5% DNIC DoD Network Information Center AS3356 645 445 200 31.0% LEVEL3 Level 3 Communications AS5668 403 206 197 48.9% CIH-12 CenturyTel Internet Holdings, Inc. Total 16622 7266 9356 56.3% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.170.14.0/23 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.47.254.0/24 AS701 UU UUNET Technologies, Inc. 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/23 AS11937 TRXI TRX Inc. 216.145.132.0/22 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Weekly Routing Table Report
by Routing Table Analysis 08 Oct '04

08 Oct '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 09 Oct, 2004 Analysis Summary ---------------- BGP routing table entries examined: 149020 Prefixes after maximum aggregation: 87919 Unique aggregates announced to Internet: 71042 Total ASes present in the Internet Routing Table: 18195 Origin-only ASes present in the Internet Routing Table: 15790 Origin ASes announcing only one prefix: 7393 Transit ASes present in the Internet Routing Table: 2405 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 26 Prefixes from unregistered ASNs in the Routing Table: 58 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 16 Number of addresses announced to Internet: 1344430884 Equivalent to 80 /8s, 34 /16s and 99 /24s Percentage of available address space announced: 36.3 Percentage of allocated address space announced: 58.6 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 68695 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 28600 Total APNIC prefixes after maximum aggregation: 14296 Prefixes being announced from the APNIC address blocks: 26765 Unique aggregates announced from the APNIC address blocks: 14304 APNIC Region origin ASes present in the Internet Routing Table: 2146 APNIC Region origin ASes announcing only one prefix: 641 APNIC Region transit ASes present in the Internet Routing Table: 329 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 164575616 Equivalent to 9 /8s, 207 /16s and 57 /24s Percentage of available APNIC address space announced: 75.1 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 85051 Total ARIN prefixes after maximum aggregation: 51403 Prefixes being announced from the ARIN address blocks: 65114 Unique aggregates announced from the ARIN address blocks: 22973 ARIN Region origin ASes present in the Internet Routing Table: 9604 ARIN Region origin ASes announcing only one prefix: 3450 ARIN Region transit ASes present in the Internet Routing Table: 931 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 233997056 Equivalent to 13 /8s, 242 /16s and 131 /24s Percentage of available ARIN address space announced: 69.7 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 27632 Total RIPE prefixes after maximum aggregation: 19190 Prefixes being announced from the RIPE address blocks: 24481 Unique aggregates announced from the RIPE address blocks: 16076 RIPE Region origin ASes present in the Internet Routing Table: 5882 RIPE Region origin ASes announcing only one prefix: 3169 RIPE Region transit ASes present in the Internet Routing Table: 1018 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 173276096 Equivalent to 10 /8s, 83 /16s and 251 /24s Percentage of available RIPE address space announced: 60.8 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6457 Total LACNIC prefixes after maximum aggregation: 2340 Prefixes being announced from the LACNIC address blocks: 6288 Unique aggregates announced from the LACNIC address blocks: 3705 LACNIC Region origin ASes present in the Internet Routing Table: 393 LACNIC Region origin ASes announcing only one prefix: 113 LACNIC Region transit ASes present in the Internet Routing Table: 83 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 16269568 Equivalent to 0 /8s, 248 /16s and 65 /24s Percentage of available LACNIC address space announced: 48.5 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1272 Total AfriNIC prefixes after maximum aggregation: 690 Prefixes being announced from the AfriNIC address blocks: 886 Unique aggregates announced from the AfriNIC address blocks: 677 AfriNIC Region origin ASes present in the Internet Routing Table: 93 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 2064640 Equivalent to 0 /8s, 31 /16s and 129 /24s Percentage of available AfriNIC address space announced: 12.3 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 840 4391 160 Data Communications Bureau 1221 809 1184 581 Telstra Pty Ltd 4766 544 3407 266 Korea Internet Exchange for " 9583 529 41 106 Satyam Infoway Ltd., 17676 370 5532 52 XTAGE CORPORATION 4755 367 132 51 Videsh Sanchar Nigam Ltd. Aut 2907 354 1857 328 SINET Japan 9443 353 69 79 Primus Telecommunications 9929 344 161 33 China Netcom Corp. 17557 316 23 157 Pakistan Telecom 703 311 342 240 UUNET 2764 285 274 232 connect.com.au pty ltd 7474 270 269 201 Optus Communications Pty Ltd 9942 238 73 127 COMindico Australia 4802 233 28 142 Wantree Development 9800 230 374 67 CHINA UNICOM 9498 224 49 48 BHARTI BT INTERNET LTD. 7563 221 48 164 Korea Internet Infrastructure 10036 203 19 186 C&M Communication Co. Ltd. 17974 203 62 10 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1411 6749 983 AT&T WorldNet Services 701 1273 8450 919 UUNET Technologies, Inc. 1239 939 2867 624 Sprint 2386 845 532 606 AT&T Data Communications Serv 3549 843 563 206 Global Crossing 6197 794 491 319 BellSouth Network Solutions, 4323 790 637 216 Time Warner Telecom 18566 743 208 6 Covad Communications 721 723 21028 298 DLA Systems Automation Center 3356 647 10923 445 Level 3 Communications, LLC 3561 634 2513 432 Cable & Wireless USA 209 627 3465 495 Qwest 20115 589 427 302 Charter Communications 852 512 1142 398 Telus Advanced Communications 7843 493 691 98 Adelphia Corp. 7132 449 8288 377 SBC Internet Services 6198 432 403 203 BellSouth Network Solutions, 705 429 163 271 UUNET Technologies, Inc. 27364 411 36 19 Armstrong Cable Services 22773 402 960 18 Cox Communications, Inc. Atla RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 629 2013 519 UUNET - Commercial IP service 3320 301 2470 238 Deutsche Telekom AG 3301 282 1100 272 TeliaNet Sweden 8220 279 461 265 COLT Internet - International 21502 269 40 3 NUMERICABLE is a cabled netwo 680 251 2025 239 DFN-IP service G-WiN 3246 218 476 215 Song Networks 13083 217 51 8 Mannesmann Datenverarbeitung 8708 207 114 183 Romania Data Systems S.A. 1257 205 742 178 SWIPnet Swedish IP Network 5515 201 843 147 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 719 157 288 102 LANLINK autonomous system 3215 156 908 76 France Telecom Transpac 6746 154 30 129 Dynamic Network Technologies, 8866 151 18 19 Bulgarian Telecommunication C 25186 150 154 106 France Telecom Transpac's Tra 3269 149 1259 67 TELECOM ITALIA 5400 148 207 120 BT Ignite European Backbone 3303 147 610 129 Swisscom Ltd LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 349 139 68 ImpSat 8151 304 439 129 UniNet S.A. de C.V. 16814 212 13 7 NSS, S.A. 11172 205 100 54 Servicios Alestra S.A de C.V 6147 194 94 20 Telefonica Del Peru 11664 171 13 26 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 7303 134 60 24 Telecom Argentina Stet-France 6503 124 164 85 AVANTEL, S.A. 11992 101 9 31 Integrated Systems 11311 88 8 26 Sinectis S.A. 6535 85 7 19 Chilesat Servicios Empresari 10481 81 32 7 Prima S.A. 11556 81 41 3 Cable-Wireless Panama 14420 80 5 33 ANDINATEL S.A. 4270 79 18 9 Red de Interconexion Universi 5639 77 8 8 Telecommunications Services o 15311 76 21 36 Telefonica Empresas 27716 74 9 12 Eveloz 14522 72 5 8 SatNet S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 251 631 218 The Internet Solution 5536 113 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 93 276 81 The Internetworking Company o 20928 58 16 1 Noor Advanced Technologies AS 22750 50 3 2 >>UNKNOWN<< 24835 34 34 7 RAYA Telecom - Egypt 9129 33 3 4 UUNET Kenya 6713 31 42 10 Itissalat Al-MAGHRIB 5713 26 125 24 Telkom SA Ltd 8524 25 1 4 AUCEGYPT Autonomous System 14988 24 16 1 Botswana Telecommunications C 16637 22 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 12455 17 4 2 Jambonet Autonomous system 8346 15 7 14 SONATEL-AS Autonomous System 15706 15 4 2 Sudatel Internet Exchange Aut 21491 15 1 4 UTL On-line is RF broadband I 21280 14 2 3 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 743 737 Covad Communications 4134 840 680 Data Communications Bureau 3549 843 637 Global Crossing 4323 790 574 Time Warner Telecom 6197 794 475 BellSouth Network Solutions, 721 723 425 DLA Systems Automation Center 9583 529 423 Satyam Infoway Ltd., 7843 493 395 Adelphia Corp. 27364 411 392 Armstrong Cable Services 22773 402 384 Cox Communications, Inc. Atla 5668 398 380 Century Telephone 6467 389 359 E.Spire Communications, Inc. 701 1273 354 UUNET Technologies, Inc. 22909 383 353 Comcast Cable Corporation 17676 370 318 XTAGE CORPORATION 4755 367 316 Videsh Sanchar Nigam Ltd. Aut 1239 939 315 Sprint 9929 344 311 China Netcom Corp. 6478 379 300 AT&T Worldnet Services 4355 389 290 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 24.249.231.0/24 15218 COX Communications 64512 PRIVATE 24.249.232.0/24 15218 COX Communications 64512 PRIVATE 24.249.233.0/24 15218 COX Communications 64512 PRIVATE 24.249.234.0/24 15218 COX Communications 64512 PRIVATE 24.249.235.0/24 15218 COX Communications 65006 PRIVATE 84.18.32.0/19 33831 * 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking 22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking 22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 111.0.0.0/24 7563 Korea Internet Infrastructure 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:15 /12:62 /13:137 /14:308 /15:552 /16:8102 /17:2247 /18:3881 /19:9700 /20:10370 /21:7877 /22:10881 /23:12542 /24:81493 /25:233 /26:209 /27:113 /28:59 /29:48 /30:116 /31:0 /32:47 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 728 743 Covad Communications 6197 638 794 BellSouth Network Solutions, 2386 610 845 AT&T Data Communications Serv 7018 561 1411 AT&T WorldNet Services 3549 444 843 Global Crossing 27364 395 411 Armstrong Cable Services 702 381 629 UUNET - Commercial IP service 1239 376 939 Sprint 9583 368 529 Satyam Infoway Ltd., 4766 364 544 Korea Internet Exchange for " 701 351 1273 UUNET Technologies, Inc. 5668 346 398 Century Telephone 6198 316 432 BellSouth Network Solutions, 20115 299 589 Charter Communications 6467 286 389 E.Spire Communications, Inc. 9929 275 344 China Netcom Corp. 6517 271 298 Yipes Communications, Inc. 13609 266 309 Choice One Communications Inc 21502 266 269 NUMERICABLE is a cabled netwo 3561 257 634 Cable & Wireless USA Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:8 12:1404 13:1 15:1 16:2 17:3 18:1 20:6 24:739 32:68 33:2 38:80 40:54 44:3 47:2 52:3 55:1 56:3 57:17 60:6 61:519 62:509 63:1833 64:2543 65:2072 66:2502 67:420 68:548 69:731 70:80 80:520 81:532 82:310 83:174 84:40 111:1 128:121 129:165 130:87 131:185 132:34 134:188 135:17 136:181 137:55 138:182 139:38 140:184 141:107 142:123 143:69 144:161 145:42 146:323 147:94 148:396 149:109 150:87 151:65 152:151 153:68 154:2 155:130 156:57 157:70 158:142 159:162 160:60 161:71 162:374 163:79 164:213 165:161 166:117 167:220 168:358 169:120 170:280 171:9 192:5571 193:2894 194:2136 195:1520 196:644 198:3676 199:3282 200:3772 201:20 202:4880 203:5710 204:3382 205:2099 206:2435 207:2647 208:2273 209:3004 210:1492 211:636 212:1115 213:1198 214:131 215:30 216:3688 217:1046 218:176 219:101 220:256 221:37 222:43 End of report

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The Cidr Report
by cidr-report＠potaroo.net 08 Oct '04

08 Oct '04

This report has been generated at Fri Oct 8 21:44:22 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 01-10-04 145932 100119 02-10-04 146075 99905 03-10-04 145755 100267 04-10-04 146184 100294 05-10-04 146297 100252 06-10-04 146316 100325 07-10-04 146253 100429 08-10-04 146340 100450 AS Summary 18121 Number of ASes in routing system 7375 Number of ASes announcing only one prefix 1392 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86706432 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 08Oct04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 146447 100449 45998 31.4% All ASes AS18566 743 7 736 99.1% CVAD Covad Communications AS4134 814 178 636 78.1% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 789 220 569 72.1% TWTC Time Warner Telecom AS7018 1392 967 425 30.5% ATTW AT&T WorldNet Services AS6197 789 382 407 51.6% BNS-14 BellSouth Network Solutions, Inc AS22773 403 21 382 94.8% CXA Cox Communications Inc. AS27364 411 37 374 91.0% ARMC Armstrong Cable Services AS6467 390 30 360 92.3% ACSI e.spire Communications, Inc. AS701 1252 907 345 27.6% UU UUNET Technologies, Inc. AS22909 383 38 345 90.1% CMCS Comcast Cable Communications, Inc. AS1239 953 639 314 32.9% SPRN Sprint AS17676 368 61 307 83.4% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 334 33 301 90.1% CNCNET-CN China Netcom Corp. AS6478 379 79 300 79.2% ATTW AT&T WorldNet Services AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS21502 269 3 266 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS4766 529 266 263 49.7% KIXS-AS-KR Korea Telecom AS14654 260 6 254 97.7% WAYPOR-3 Wayport AS9443 357 108 249 69.7% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6140 370 134 236 63.8% IMPSA ImpSat AS15557 334 104 230 68.9% LDCOMNET LDCOM NETWORKS AS2386 841 612 229 27.2% ADCS-1 AT&T Data Communications Services AS1221 815 587 228 28.0% ASN-TELSTRA Telstra Pty Ltd AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS9583 529 306 223 42.2% SIFY-AS-IN Sify Limited AS7843 488 266 222 45.5% ADELPH-13 Adelphia Corp. AS6198 432 214 218 50.5% BNS-14 BellSouth Network Solutions, Inc AS13083 217 8 209 96.3% Mannesmann Datenverarbeitung Autonomes System AS721 718 513 205 28.6% DNIC DoD Network Information Center AS3356 647 445 202 31.2% LEVEL3 Level 3 Communications Total 16831 7286 9545 56.7% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 111.0.0.0/24 AS7563 KII-AS Korea Internet Infrastructure 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc. 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.107.144.0/22 AS1 LVLT Level 3 Communications, Inc. 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc. 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc. 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.47.254.0/24 AS701 UU UUNET Technologies, Inc. 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Announcement Routing Registry Training Courses
by RIPE NCC Training 04 Oct '04

04 Oct '04

Dear Colleagues, [apologies for duplicate postings] As a service to its members the RIPE NCC offers the "Routing Registry Training Course". The main objective of the "Routing Registry Training Course" is to familiarise the LIRs with the features of the Routing Registry, while introducing the relevant tools and services of the RIPE NCC. The course also offers practical exercises. OVERVIEW OF TOPICS COVERED IN THE COURSE: - Routing Registry as a part of the RIPE Whois Database and the Internet Routing Registry (IRR) - Specifying routing policies using (RPSL) Routing Policy Specification Language and the RtConfig tool - IRRToolSet - Routing Information Service (RIS) - Routing Registry Consistency Check Project Please note that this is an advanced course. It will: - NOT teach the basics of routing - NOT teach the basics of RIPE Database operations, - NOT describe how to receive Internet resources from the RIPE NCC - NOT describe how to operate a Local Internet Registry (LIR) The target audience of the course are technical staff of LIRs: e.g. network operators, engineers etc. This course is not intended for administrative or management staff (e.g. Hostmasters) . It is assumed that all attendees will be familiar with Border Gateway Protocol routing and with the RIPE Database (i.e. creating/modifying objects). This course is based on interactive exercises in a local network set-up. Please bring your laptops equipped with the following: - A working Ethernet card, - Three meters of Ethernet cable, - A secure connection client, - A web browser. Please be prepared to share your laptop (or at least allow another attendee to "look over your shoulder") if necessary. The Routing Registry Training Course is conducted in the English language and is free of charge, since it is covered by the membership fee. More information about the Routing Registry Training Course can be found at: http://www.ripe.net/training/rr/ REGISTRATION: You can register for a Routing Registry Training Course at the following URL: http://www.ripe.net/cgi-bin/trainingform.pl.cgi Or by completing the registration form at the end of this e-mail and replying to <training(a)ripe.net> . In order to register for a Routing Registry Training Course you must be an employee of an LIR and either: - be an LIR contact - be confirmed by an LIR contact LIR contacts are those employees of an LIR who are registered with RIPE NCC as authoritative contact persons. It is expected that most of those interested in the Routing Registry Training Course will not be an authoritative contact person for their LIR, and therefore will be, refused by the course registration "robot". In order to be admitted to the course, a confirmation e-mail must be sent to <training(a)ripe.net>. Please approach the LIR contacts from your organisation personally, since the identity of LIR contacts is confidential, and the RIPE NCC is unable to divulge contact persons for any given LIR. Kind Regards, Rumy Kanis Training Services Manager RIPE NCC **************************************************************************** COURSE DATES AND VENUES ======================== Date: Tuesday 23 November 2004 Time: 0900 - 1700 Location: Damascus,Syria AND: Date: Friday 14 January 2005 Time: 0900 - 1700 Location: Berlin, Germany AND: Date: Friday 18 March 2005 Time: 0900 - 1700 Location: Barcelona, Spain AND: Date: Friday 15 April 2005 Time: 0900 - 1700 Location: Amsterdam, The Netherlands AND: Date: Friday 22 April 2005 Time: 0900 - 1700 Location: St. Petersburg, Russian Federation ***************************************************************************** REGISTRATION FORM ================= %START PART 1 - Registration 1) Your name Enter First name, Last name in full e.g. John Doe Mary-Beth Walton # NAME [ ] 2) Your Registry ID (format: country-code.<name of registry>) # REG [ ] 3) Your e-mail address # EMAIL [ ] 4) Your NIC handle (optional) # NICHANDLE [ ] 5) The course you plan to attend (date and location) # COURSE [ ] %END

1 0

Weekly Routing Table Report
by Routing Table Analysis 01 Oct '04

01 Oct '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 02 Oct, 2004 Analysis Summary ---------------- BGP routing table entries examined: 148514 Prefixes after maximum aggregation: 87767 Unique aggregates announced to Internet: 70657 Total ASes present in the Internet Routing Table: 18150 Origin-only ASes present in the Internet Routing Table: 15772 Origin ASes announcing only one prefix: 7354 Transit ASes present in the Internet Routing Table: 2378 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 26 Prefixes from unregistered ASNs in the Routing Table: 58 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 16 Number of addresses announced to Internet: 1342569892 Equivalent to 80 /8s, 5 /16s and 253 /24s Percentage of available address space announced: 36.2 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 68347 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 28520 Total APNIC prefixes after maximum aggregation: 14270 Prefixes being announced from the APNIC address blocks: 26682 Unique aggregates announced from the APNIC address blocks: 14234 APNIC Region origin ASes present in the Internet Routing Table: 2142 APNIC Region origin ASes announcing only one prefix: 640 APNIC Region transit ASes present in the Internet Routing Table: 327 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 164342912 Equivalent to 9 /8s, 203 /16s and 172 /24s Percentage of available APNIC address space announced: 75.0 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 84895 Total ARIN prefixes after maximum aggregation: 51348 Prefixes being announced from the ARIN address blocks: 65053 Unique aggregates announced from the ARIN address blocks: 22944 ARIN Region origin ASes present in the Internet Routing Table: 9589 ARIN Region origin ASes announcing only one prefix: 3431 ARIN Region transit ASes present in the Internet Routing Table: 922 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 233130752 Equivalent to 13 /8s, 229 /16s and 75 /24s Percentage of available ARIN address space announced: 69.5 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 27533 Total RIPE prefixes after maximum aggregation: 19130 Prefixes being announced from the RIPE address blocks: 24369 Unique aggregates announced from the RIPE address blocks: 15991 RIPE Region origin ASes present in the Internet Routing Table: 5862 RIPE Region origin ASes announcing only one prefix: 3151 RIPE Region transit ASes present in the Internet Routing Table: 1011 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 172404800 Equivalent to 10 /8s, 70 /16s and 176 /24s Percentage of available RIPE address space announced: 60.4 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6310 Total LACNIC prefixes after maximum aggregation: 2335 Prefixes being announced from the LACNIC address blocks: 6155 Unique aggregates announced from the LACNIC address blocks: 3602 LACNIC Region origin ASes present in the Internet Routing Table: 392 LACNIC Region origin ASes announcing only one prefix: 111 LACNIC Region transit ASes present in the Internet Routing Table: 80 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 16196608 Equivalent to 0 /8s, 247 /16s and 36 /24s Percentage of available LACNIC address space announced: 48.3 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1248 Total AfriNIC prefixes after maximum aggregation: 684 Prefixes being announced from the AfriNIC address blocks: 885 Unique aggregates announced from the AfriNIC address blocks: 676 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 1999104 Equivalent to 0 /8s, 30 /16s and 129 /24s Percentage of available AfriNIC address space announced: 11.9 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 839 4389 159 Data Communications Bureau 1221 809 1184 581 Telstra Pty Ltd 4766 544 3408 266 Korea Internet Exchange for " 9583 530 41 106 Satyam Infoway Ltd., 17676 370 5532 52 XTAGE CORPORATION 4755 367 133 48 Videsh Sanchar Nigam Ltd. Aut 2907 354 1857 328 SINET Japan 9443 354 69 80 Primus Telecommunications 9929 344 161 33 China Netcom Corp. 703 312 342 241 UUNET 17557 312 23 156 Pakistan Telecom 2764 283 274 232 connect.com.au pty ltd 7474 271 269 202 Optus Communications Pty Ltd 9942 240 73 129 COMindico Australia 4802 232 28 141 Wantree Development 9800 230 374 67 CHINA UNICOM 9498 228 49 48 BHARTI BT INTERNET LTD. 7563 210 48 164 Korea Internet Infrastructure 17974 203 62 10 PT TELEKOMUNIKASI INDONESIA 4837 202 2264 106 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1406 6760 980 AT&T WorldNet Services 701 1269 8429 916 UUNET Technologies, Inc. 1239 940 2867 624 Sprint 3549 852 563 206 Global Crossing 2386 841 530 602 AT&T Data Communications Serv 4323 796 637 218 Time Warner Telecom 6197 776 365 349 BellSouth Network Solutions, 18566 743 208 6 Covad Communications 721 720 21028 298 DLA Systems Automation Center 209 629 3465 498 Qwest 3561 618 2494 426 Cable & Wireless USA 3356 587 10907 446 Level 3 Communications, LLC 20115 587 425 300 Charter Communications 852 512 1142 398 Telus Advanced Communications 7843 489 681 98 Adelphia Corp. 7132 435 8157 377 SBC Internet Services 705 431 163 273 UUNET Technologies, Inc. 6198 430 396 200 BellSouth Network Solutions, 22773 401 960 18 Cox Communications, Inc. Atla 5668 398 87 18 Century Telephone RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 637 2031 527 UUNET - Commercial IP service 3320 299 2470 237 Deutsche Telekom AG 8220 282 461 268 COLT Internet - International 3301 281 1100 271 TeliaNet Sweden 21502 268 40 3 NUMERICABLE is a cabled netwo 680 251 2025 239 DFN-IP service G-WiN 3246 218 476 215 Song Networks 13083 217 51 8 Mannesmann Datenverarbeitung 1257 208 744 178 SWIPnet Swedish IP Network 8708 205 113 182 Romania Data Systems S.A. 5515 201 843 147 Sonera Solution Autonomous Sy 3215 188 876 76 France Telecom Transpac 786 176 1794 176 The JANET IP Service 719 157 288 102 LANLINK autonomous system 6746 151 29 128 Dynamic Network Technologies, 8866 150 18 19 Bulgarian Telecommunication C 25186 149 154 106 France Telecom Transpac's Tra 3269 147 1227 67 TELECOM ITALIA 5400 147 207 119 BT Ignite European Backbone 3303 146 609 129 Swisscom Ltd LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 367 138 68 ImpSat 8151 303 439 129 UniNet S.A. de C.V. 16814 212 13 7 NSS, S.A. 11172 203 99 52 Servicios Alestra S.A de C.V 6147 193 90 20 Telefonica Del Peru 11664 163 12 35 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 7303 129 58 23 Telecom Argentina Stet-France 6503 127 164 86 AVANTEL, S.A. 11992 90 9 31 Integrated Systems 6535 85 7 19 Chilesat Servicios Empresari 11311 84 8 24 Sinectis S.A. 10481 81 32 7 Prima S.A. 11556 80 40 2 Cable-Wireless Panama 14420 80 5 33 ANDINATEL S.A. 5639 77 8 8 Telecommunications Services o 15311 76 21 36 Telefonica Empresas 10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA 14117 71 6 4 Telefonica del Sur S.A. 4270 70 18 9 Red de Interconexion Universi AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 251 631 218 The Internet Solution 5536 114 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 92 276 81 The Internetworking Company o 20928 59 16 1 Noor Advanced Technologies AS 22750 50 3 2 >>UNKNOWN<< 6713 31 42 10 Itissalat Al-MAGHRIB 9129 31 3 4 UUNET Kenya 5713 26 125 24 Telkom SA Ltd 8524 25 1 4 AUCEGYPT Autonomous System 14988 25 16 1 Botswana Telecommunications C 16637 24 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 12455 17 4 2 Jambonet Autonomous system 21491 16 1 3 UTL On-line is RF broadband I 8346 15 7 14 SONATEL-AS Autonomous System 15706 15 4 2 Sudatel Internet Exchange Aut 24835 15 18 5 RAYA Telecom - Egypt 21280 14 2 3 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 743 737 Covad Communications 4134 839 680 Data Communications Bureau 3549 852 646 Global Crossing 4323 796 578 Time Warner Telecom 6197 776 427 BellSouth Network Solutions, 9583 530 424 Satyam Infoway Ltd., 721 720 422 DLA Systems Automation Center 7843 489 391 Adelphia Corp. 22773 401 383 Cox Communications, Inc. Atla 5668 398 380 Century Telephone 27364 395 376 Armstrong Cable Services 6467 388 359 E.Spire Communications, Inc. 701 1269 353 UUNET Technologies, Inc. 22909 381 347 Comcast Cable Corporation 4755 367 319 Videsh Sanchar Nigam Ltd. Aut 17676 370 318 XTAGE CORPORATION 1239 940 316 Sprint 9929 344 311 China Netcom Corp. 6140 367 299 ImpSat 6478 370 296 AT&T Worldnet Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 24.249.231.0/24 15218 COX Communications 64512 PRIVATE 24.249.232.0/24 15218 COX Communications 64512 PRIVATE 24.249.233.0/24 15218 COX Communications 64512 PRIVATE 24.249.234.0/24 15218 COX Communications 64512 PRIVATE 24.249.235.0/24 15218 COX Communications 65010 PRIVATE 64.192.10.0/23 7911 Williams Communicati 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking 22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking 22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 111.0.0.0/24 7563 Korea Internet Infrastructure 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:15 /12:62 /13:133 /14:306 /15:546 /16:8084 /17:2240 /18:3882 /19:9833 /20:10353 /21:7850 /22:10822 /23:12480 /24:81100 /25:236 /26:207 /27:113 /28:51 /29:30 /30:97 /31:0 /32:46 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 728 743 Covad Communications 6197 627 776 BellSouth Network Solutions, 2386 607 841 AT&T Data Communications Serv 7018 554 1406 AT&T WorldNet Services 3549 450 852 Global Crossing 702 388 637 UUNET - Commercial IP service 27364 379 395 Armstrong Cable Services 1239 375 940 Sprint 9583 368 530 Satyam Infoway Ltd., 4766 363 544 Korea Internet Exchange for " 701 352 1269 UUNET Technologies, Inc. 5668 346 398 Century Telephone 6198 316 430 BellSouth Network Solutions, 20115 299 587 Charter Communications 6467 288 388 E.Spire Communications, Inc. 9929 275 344 China Netcom Corp. 6517 265 292 Yipes Communications, Inc. 13609 265 308 Choice One Communications Inc 21502 265 268 NUMERICABLE is a cabled netwo 4323 248 796 Time Warner Telecom Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:7 12:1402 13:1 15:5 16:2 17:3 18:1 20:6 24:717 32:66 33:2 38:78 40:54 44:3 47:2 52:3 55:1 56:3 57:17 60:6 61:520 62:494 63:1848 64:2541 65:2054 66:2506 67:389 68:546 69:717 70:79 80:523 81:553 82:313 83:172 84:32 111:1 128:121 129:169 130:87 131:186 132:35 134:187 135:17 136:176 137:55 138:182 139:36 140:187 141:107 142:123 143:64 144:159 145:42 146:323 147:94 148:326 149:108 150:87 151:65 152:153 153:67 154:2 155:127 156:58 157:73 158:142 159:162 160:55 161:68 162:374 163:80 164:211 165:161 166:118 167:223 168:356 169:120 170:267 171:9 192:5574 193:2903 194:2131 195:1499 196:644 198:3646 199:3290 200:3661 201:20 202:4872 203:5700 204:3333 205:2098 206:2443 207:2645 208:2280 209:3008 210:1485 211:639 212:1111 213:1195 214:133 215:31 216:3679 217:1035 218:175 219:101 220:256 221:37 222:43 End of report

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The Cidr Report
by cidr-report＠potaroo.net 01 Oct '04

01 Oct '04

This report has been generated at Fri Oct 1 21:49:32 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 24-09-04 144324 99990 25-09-04 145885 99946 26-09-04 145618 100026 27-09-04 145573 100092 28-09-04 145705 100057 29-09-04 145910 100061 30-09-04 145918 100047 01-10-04 145932 100217 AS Summary 18075 Number of ASes in routing system 7338 Number of ASes announcing only one prefix 1385 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86715392 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 01Oct04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 146170 100217 45953 31.4% All ASes AS18566 743 7 736 99.1% CVAD Covad Communications AS4134 813 177 636 78.2% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 795 221 574 72.2% TWTC Time Warner Telecom AS7018 1385 964 421 30.4% ATTW AT&T WorldNet Services AS22773 402 21 381 94.8% CXA Cox Communications Inc. AS6197 774 411 363 46.9% BNS-14 BellSouth Network Solutions, Inc AS6467 391 30 361 92.3% ACSI e.spire Communications, Inc. AS27364 394 36 358 90.9% ARMC Armstrong Cable Services AS701 1253 905 348 27.8% UU UUNET Technologies, Inc. AS22909 381 42 339 89.0% CMCS Comcast Cable Communications, Inc. AS1239 952 636 316 33.2% SPRN Sprint AS17676 368 56 312 84.8% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 334 33 301 90.1% CNCNET-CN China Netcom Corp. AS6478 370 74 296 80.0% ATTW AT&T WorldNet Services AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS21502 268 3 265 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS4766 529 266 263 49.7% KIXS-AS-KR Korea Telecom AS14654 260 6 254 97.7% WAYPOR-3 Wayport AS6140 368 115 253 68.8% IMPSA ImpSat AS9443 358 109 249 69.6% INTERNETPRIMUS-AS-AP Primus Telecommunications AS7843 489 251 238 48.7% ADELPH-13 Adelphia Corp. AS2386 840 611 229 27.3% ADCS-1 AT&T Data Communications Services AS1221 812 584 228 28.1% ASN-TELSTRA Telstra Pty Ltd AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS9583 530 308 222 41.9% SIFY-AS-IN Sify Limited AS6198 427 211 216 50.6% BNS-14 BellSouth Network Solutions, Inc AS15557 339 126 213 62.8% LDCOMNET LDCOM NETWORKS AS13083 217 8 209 96.3% Mannesmann Datenverarbeitung Autonomes System AS721 722 516 206 28.5% DNIC DoD Network Information Center AS6327 229 29 200 87.3% SHAWC-2 Shaw Communications Inc. Total 16368 6871 9497 58.0% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 111.0.0.0/24 AS7563 KII-AS Korea Internet Infrastructure 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc. 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.107.144.0/22 AS1 LVLT Level 3 Communications, Inc. 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc. 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc. 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited 202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.143.192.0/18 AS3561 CWU Cable & Wireless USA 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Routing wg draft minutes - RIPE 49
by Joao Damas 28 Sep '04

28 Sep '04

Hello, I am hereby posting a revised version of the *draft* minutes for the routing wg meeting at RIPE 49 last week. Many thanks go to the scribe, Henk Uijterwaal, of the RIPE NCC for a good and quick job. Comments are welcome, Joao Damas/(co)Chair routing-wg ISC Routing WG (Session 1) ====================== 1. Introduction/Joao Damas (16:00-16:03). ------------ Joao opens the meeting and deals with the administrative stuff. Henk Uijterwaal is appointed as scribe, the minutes from RIPE48 are approved, the agenda is approved. The group has no outstanding actions. Joao shows a slide with the dates of the upcoming IRR courses by the RIPE NCC. These dates will be published on the web shortly. 2. Securing a core network - discussion/Michael Behringer. (16:03-16:39) ------------------------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- security-discussion.pdf Christian Panigl briefly summarised part 2 of Michael Behringer's talk from morning EOF session. In the morning, Michael Behringer presented some ideas to secure the core network, keeping operability in mind: - Transit ACL's - Use RFC1918 address space and no export (users cannot see the core and thus not attack it). - Use of a non IP-Control plane The chair then opened the floor for lively discussion: * Daniel Karrenberg: if you are protecting the core, make it transparent, the end user then sees it as 1 IP hop. The user should never see RFC1918 space. Also be consistent, that will save a lot of work. * Joao Damas: Wild idea: use a v6 block for your IX. * Randy Bush: What end user want is good service, does not want to run traceroute. End user needs to debug both paths. Opaque blob is not going to let anybody debug it. * Michael Behringer: This is an old discussion. Traceroute -g and source route were considered bad too, LG's solved the problem. While he agrees with Randy Bush' points, why not invent other tools? * Randy Bush: does not see benefit in using RFC1918 space to make core invisible. This hides the fact that it is an IP network, it is going to get you in trouble sooner or later. IP network should be open. * Daniel Karrenberg and Iljitsch van Beijnum agree with Randy Bush. * Pedro Marques states that you cannot prevent people from accessing your core routers without making things invisible. * Michael Behringer wants to see the discussion on an abstract level. * Pedro Marques: if you have daily DDoS attacks, filtering for network might be a good idea, not a choice, even if it breaks other things. Host-by-host protection does not work. * van Beijnum: hiding the core and making the core inaccessible aren't the same thing. The latter can be good. If you hide the core, debugging will be the same as debugging ethernet segments. Not funny. * Randy Bush DDoS problem of distributed source and target. Needs to be solved near the edge and source of DDoS. Refers to work by Bellovin et al on push-back * David Reader: try traceroute to 213.249.249.129. Lots of 1918 space, his customer cannot see the site, operator of 10/8 can. The core doesn't see the problem, their neighbours do. * Michael Behringer asked what if you get proper addresses back. Randy: now you know who to contact and what's wrong. * Pedro Marques: one can set-up things such that traceroute works, but ping doesn't. Michael concluded with: there are different views, no agreement on pros and cons. He plans to write this up and give the document away. People can then decide for themselves what to do. 3. IRR toolset handover/Shane Kerr (16:39-16:46) -------------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- irrtoolset-handover.pdf Shane explained that the RIPE NCC took over maintenance of the RAToolset from ISI in 2001. The current release contains fixes to all issues raised at RIPE49 and compiles under gcc 3.x.x. The maintenance of this toolset does not fit with the current software model at the RIPE NCC. The RIPE NCC has therefor agreed with ISC to move maintenance to them. The RIPE NCC has handed over the code and all documentation to ISC. The mailing list will be moved soon. Question from the floor: Randy Bush asks what licensing model will be used by ISC. Joao Damas responds that the current license is the BSD license and that will not be changed. 4. BGP Wedgies/Tim Griffin (16:39-17:07) ----------- Slides on the web at www.cambridge.intel-research.net/~tgriffin Tim introduced the concept of a BGP wedgie. A 3/4-wedgie is a situation where local routing policies make sense locally but interactions allow for multiple stable routes. A full wedgie is a situation where no set of operators can find out why a set of policies result in an unexpected route. Some examples were shown. Operators should be aware of this. An IETF draft (in the GROW-WG) is available. Comments: Geoff Huston: This would be easier if "depref me" was a transit property. Should it be? Tim: if we want this to work: yes. Pedro Marques: one way to fix it is to get eBGP to advertise best route and best route that does not come from peer I'm talking to. (2nd best route). This is in an old RFC. Juniper can support this. Tim: this makes it easier, but does not solve general case. Bill Norton: what tools do you have to figure out the current situation, what tools would be useful? Tim: needs common analysis by multiple AS, not a trivial thing to set up. Daniel Karrenberg: can this be avoided with pre-pending? Tim: no, folks prefer customers, it will not work. 5. Measurements on intra domain routing instability/Zhang Shu (17:07-17:24) ------------------------------------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- instability-measurements.pdf Zhang showed statistics on intra domain routing changes in the WIDE network. Oscillations are often caused by: Congestion Link/IF failure Misconfiguration S/W bugs He then presented the RTANALY tool, a system to detect and visualise IGP changes. Release early October: http://rtanaly.koganei.wide.ad.jp/rtanaly An example was shown. Question from the floor: How do you get the data? Zhang: Record them with tcpdump. Routing WG/Session 2 ==================== 6. BGP network design/Pedro Marques (11:00-11:50) ------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- bgp-design.pdf This presentation will focused on a set of frequently asked questions that network operators have regarding the logical design of BGP networks. These include topics such as route reflector placement on a network and BGP configuration trade-offs. More a set of topics to generate discussion based on discussion with potential customers. A. How much hierarchy Showed an example of a wrong design aimed at keeping traffic local. IBGP would have done the same. BGP for internal traffic is generally a bad idea, it was not designed for it. B. Where to place route reflectors? Goal: reduce routing information. Non-goals: configuration management, scaling #tcp sessions A lot of people use Route Reflectors as a configuration. management tool. Wrong tool for the job. Side effects of path selection are usually not understood. Should buy a provisioning system. Recommendations: - Keep it simple. Lowest cost solution that solves the problem - Avoid loosing information in the core - Avoid centralisation Cold potato: MED and what are the consequences. The speaker then ran out of time and briefly went through a number of slides: C. Can BGP advertise more than 1 path? Yes, you can. Showed config example in slides D. Unadvertised JunOS behaviour changes: 6.3 incoming interface check on eBGP session (drop packet from non peer) 7.0 TCP path MTU discovery no eBGP poison reverse to neighbour as Question from the floor; Rudiger Volk: objects against the statement that BGP can advertise more than 1 path. It doesn't. Prefix is the key. Pedro: 2547 augments the key to be a route discriminator plus prefix. So effectively it does for a number of applications. A discussion follows, no conclusion is reached and the discussion is taken off-line. Randy Bush showed a case where mixing routers from two different vendors led to huge numbers of message and slow convergence, introducing a min.router advert showed slower convergence, less messages though, not seen on data plane 7. Happy packets/Randy Bush (11:50-12:04) ------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- happy.pdf Randy noticed that there have been numerous publications about the control-plane (routing) instability. However, what matters is the quality and stability of the data plane: what counts is if the data reaches its destination. A huge number of BGP updates is not a problem as long as the routers can process them without falling over. He did an experiment with a BGP beacon and sites all over the world sending data to it. One plot showed the effect of an link cut while keeping an alternative path up. Packets continued to arrive from half the sources. The other half experienced a 30 second drop, even though BGP updates continued to float around in the system much longer. More examples were shown, bottom line was there is no correlation between BGP activity and data not arriving. On the IP level, some correlation can (arguably) be seen. 8. RIS status and plans/Matthew Williams (12:04-12:23) -------------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- ris.pdf Matthew gave an update of the RIS project at the RIPE NCC. Highlights are * The internal reorganisation announced at RIPE48 has been successfully completed. * A route collector is about to be installed in Moscow. RRC08 has been moved from MAE-WEST to the PAIX. * myASn v1.0 has been released. myASn is an alarm system for BGP available at http://www.ris.ripe.net/myasn.html. * The debogonising effort has been continued. For the new RIPE NCC block 85/8, it showed that initially 80% of the sites filtered the block, this was reduced to 17% after a few days. * Ongoing efforts: - IPv6 support. Some tools do support IPv6, others don't as the RIPE NCC ran out of time. New ETA is late November. Prototypes for unsupported tools are available at: http://www.ris.ripe.net/cgi-bin/ipv6/prefixquery.cgi - Looking at requirements for myASn v1.1 and 2.0. - Future IDR work - Secure routing - Collaborate with researchers - Your suggestion 9. Detecting anomalies/Olaf Maennel (12:23-12:37) ------------------- Slides not yet on the web. Olaf presented research aimed at finding the offending AS when an anomaly in BGP is detected. He uses 3 views: time, location and prefix. The method then detects the AS that is causing the problem (in about 93%) of the cases. The algorithm has been validated using simulations, RIS/Routeviews data (1100 feeds), formal methods. Olaf has also checked that the anomalies he detected are related to events seen in syslog files from real routes. Limitations of the method are the size of the candidate set. It is also possible that the offending AS is outside the set of processed AS's. Further work includes developing a Topology aware library to identify clusters and adding this algorithm to BGP alarm systems like myASn. Collaborators are Gert Doering and the RIPE NCC. 10. AOB? --- No other business.

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