January 2004 - routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Table Analysis 09 Jan '04

09 Jan '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 10 Jan, 2004 Analysis Summary ---------------- BGP routing table entries examined: 131475 Prefixes after maximum aggregation: 80923 Unique aggregates announced to Internet: 63324 Total ASes present in the Internet Routing Table: 16435 Origin-only ASes present in the Internet Routing Table: 14265 Origin ASes announcing only one prefix: 6551 Transit ASes present in the Internet Routing Table: 2170 Transit-only ASes present in the Internet Routing Table: 76 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 30 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1276999012 Equivalent to 76 /8s, 29 /16s and 117 /24s Percentage of available address space announced: 34.5 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 57.3 Total number of prefixes smaller than registry allocations: 57989 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 24233 Total APNIC prefixes after maximum aggregation: 13074 Prefixes being announced from the APNIC address blocks: 22717 Unique aggregates announced from the APNIC address blocks: 12891 APNIC Region origin ASes present in the Internet Routing Table: 1971 APNIC Region origin ASes announcing only one prefix: 576 APNIC Region transit ASes present in the Internet Routing Table: 309 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 133962368 Equivalent to 7 /8s, 252 /16s and 26 /24s Percentage of available APNIC address space announced: 72.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77305 Total ARIN prefixes after maximum aggregation: 47872 Prefixes being announced from the ARIN address blocks: 59831 Unique aggregates announced from the ARIN address blocks: 20788 ARIN Region origin ASes present in the Internet Routing Table: 8837 ARIN Region origin ASes announcing only one prefix: 3104 ARIN Region transit ASes present in the Internet Routing Table: 848 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 213682848 Equivalent to 12 /8s, 188 /16s and 138 /24s Percentage of available ARIN address space announced: 74.9 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 - 32767 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 23335 Total RIPE prefixes after maximum aggregation: 17114 Prefixes being announced from the RIPE address blocks: 20196 Unique aggregates announced from the RIPE address blocks: 13441 RIPE Region origin ASes present in the Internet Routing Table: 5094 RIPE Region origin ASes announcing only one prefix: 2738 RIPE Region transit ASes present in the Internet Routing Table: 893 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 148407168 Equivalent to 8 /8s, 216 /16s and 131 /24s Percentage of available RIPE address space announced: 68.0 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 RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5445 Total LACNIC prefixes after maximum aggregation: 2184 Prefixes being announced from the LACNIC address blocks: 5014 Unique aggregates announced from the LACNIC address blocks: 3126 LACNIC Region origin ASes present in the Internet Routing Table: 366 LACNIC Region origin ASes announcing only one prefix: 106 LACNIC Region transit ASes present in the Internet Routing Table: 71 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 12 Number of LACNIC addresses announced to Internet: 13876480 Equivalent to 0 /8s, 211 /16s and 189 /24s Percentage of available LACNIC address space announced: 41.4 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1152 Total AfriNIC prefixes after maximum aggregation: 679 Prefixes being announced from the AfriNIC address blocks: 735 Unique aggregates announced from the AfriNIC address blocks: 567 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 1758208 Equivalent to 0 /8s, 26 /16s and 212 /24s Percentage of available AfriNIC address space announced: 10.5 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 904 1098 650 Telstra Pty Ltd 4134 701 2413 110 Data Communications Bureau 4766 398 2903 238 Korea Internet Exchange for " 2907 362 1847 339 SINET Japan 9443 346 69 79 Primus Telecommunications 703 338 372 262 UUNET 17557 307 22 152 Pakistan Telecom 17676 292 4300 38 XTAGE CORPORATION 2764 286 289 235 connect.com.au pty ltd 7474 268 305 212 Optus Communications Pty Ltd 4538 250 1811 21 China Education and Research 4755 222 130 58 Videsh Sanchar Nigam Ltd. Aut 9942 217 69 128 COMindico Australia 9800 216 348 57 CHINA UNICOM 9583 213 44 12 Satyam Infoway Ltd., 9929 211 154 28 China Netcom Corp. 9498 181 30 33 BHARTI BT INTERNET LTD. 17642 153 40 112 RequestDSL BGP AS# for Sydney 17964 153 121 62 Beijing Dian-Xin-Tong Network 3786 148 752 130 DACOM Corporation ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1411 7048 977 AT&T 701 1400 8694 967 UUNET Technologies, Inc. 1239 945 3088 661 Sprint 6197 775 483 251 BellSouth Network Solutions, 18566 766 176 8 Covad Communications 3356 733 10925 584 Level 3 Communications, LLC 209 722 3529 507 Qwest 4323 674 589 202 Time Warner Communications, I 20115 578 323 332 Charter Communications 6198 546 340 195 BellSouth Network Solutions, 7843 510 535 119 Adelphia Corp. 852 504 1124 400 Telus Advanced Communications 7066 502 207 270 Virginia Polytechnic Institut 7132 462 7402 311 Southwestern Bell Internet Se 2386 418 544 219 AT&T Data Communications Serv 19029 409 172 262 New Edge Networks 690 398 58 268 Merit Network 4355 390 323 101 EarthLink, Inc. 705 380 196 235 UUNET Technologies, Inc. 27364 380 28 24 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 694 2076 577 UUNET - Commercial IP service 3301 333 1159 315 TeliaNet Sweden 3320 281 1972 231 Deutsche Telekom AG 8220 267 412 252 COLT Internet - International 1257 245 505 191 SWIPnet Swedish IP Network 680 229 2022 226 DFN-IP service G-WiN 13083 215 51 8 Mannesmann Datenverarbeitung 3246 186 424 184 Song Networks 786 175 1826 175 The JANET IP Service 5515 173 762 135 Sonera Solution Autonomous Sy 25186 168 201 109 France Telecom Transpac's Tra 8708 164 111 157 Romania Data Systems S.A. 3215 150 786 68 France Telecom Transpac 3303 138 557 138 Swisscom Ltd 5400 135 224 125 BT Ignite European Backbone 719 134 288 104 LANLINK autonomous system 12302 126 18 33 MobiFon S.A. 2856 119 1294 109 BTnet UK Regional network 3269 118 940 63 TELECOM ITALIA 3352 103 892 30 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 350 120 69 ImpSat 8151 237 335 122 UniNet S.A. de C.V. 11172 198 77 44 Servicios Alestra S.A de C.V 16814 155 10 5 NSS, S.A. 7303 139 52 17 Telecom Argentina Stet-France 6505 132 90 92 Global One Communicaoes Ltda 6503 128 220 93 AVANTEL, S.A. 6147 124 78 20 Telefonica Del Peru 11340 108 3 29 Red Universitaria Nacional 15311 78 18 38 Telefonica Empresas 6535 76 5 19 Chilesat Servicios Empresari 4270 70 17 8 Red de Interconexion Universi 11992 68 25 32 Integrated Systems 11311 66 7 22 Sinectis S.A. 7080 64 4 1 Electronica y Comunicaciones 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 7738 60 218 13 Telecomunicacoes da Bahia S.A 1916 59 247 39 Fundacao de Amparo a Pesquisa 14420 59 4 22 ANDINATEL S.A. 5639 58 7 8 Telecommunications Services o AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 249 632 218 The Internet Solution 5536 103 8 3 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 90 272 80 The Internetworking Company o 2561 58 6 3 Egyptian Universities Network 11845 36 9 11 Data Pro Business Online 3208 33 2 1 ARN Network 16637 26 9 19 Johnnic e-Ventures 5713 24 93 22 Telkom SA Ltd 9129 24 3 4 UUNET Kenya 12455 24 4 2 Jambonet Autonomous system 24835 23 18 6 RAYA Telecom - Egypt 6713 22 38 9 Itissalat Al-MAGHRIB 8524 18 2 4 AUCEGYPT Autonomous System 10798 18 1 12 Standard Bank of South Africa 12258 15 3 10 Vodacom Internet Company 15706 15 2 5 Sudatel Internet Exchange Aut 17148 14 1 8 First National Bank 2609 12 10 3 Tunisia BackBone AS 8346 12 6 12 SONATEL-AS Autonomous System Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 766 758 Covad Communications 4134 701 591 Data Communications Bureau 6197 775 524 BellSouth Network Solutions, 4323 674 472 Time Warner Communications, I 701 1400 433 UUNET Technologies, Inc. 7843 510 391 Adelphia Corp. 27364 380 356 Armstrong Cable Services 6198 546 351 BellSouth Network Solutions, 22909 327 310 Comcast Cable Corporation 5668 320 304 Century Telephone 22773 328 299 Cox Communications, Inc. Atla 4355 390 289 EarthLink, Inc. 1239 945 284 Sprint 6140 350 281 ImpSat 9443 346 267 Primus Telecommunications 1221 904 254 Telstra Pty Ltd 6347 331 254 SAVVIS Communications Corpora 17676 292 254 XTAGE CORPORATION 20115 578 246 Charter Communications 376 358 244 Reseau Interordinateurs Scien List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 131.95.1.240/28 16430 University of Southe 64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D 64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA 23861 UNALLOCATED 210.93.46.0/24 4766 Korea Internet Excha 23861 UNALLOCATED 210.93.47.0/24 4766 Korea Internet Excha Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 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 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 568 DISO-UNRRA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:4 /10:6 /11:15 /12:57 /13:104 /14:279 /15:497 /16:7541 /17:1844 /18:3423 /19:8861 /20:9319 /21:6716 /22:9437 /23:11079 /24:71616 /25:182 /26:239 /27:141 /28:32 /29:6 /30:47 /31:0 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 751 766 Covad Communications 6197 619 775 BellSouth Network Solutions, 7018 528 1411 AT&T 702 423 694 UUNET - Commercial IP service 701 422 1400 UUNET Technologies, Inc. 6198 402 546 BellSouth Network Solutions, 7066 396 502 Virginia Polytechnic Institut 27364 374 380 Armstrong Cable Services 3356 371 733 Level 3 Communications, LLC 690 361 398 Merit Network 20115 360 578 Charter Communications 1239 333 945 Sprint 5668 283 320 Century Telephone 19029 267 409 New Edge Networks 25844 244 244 Skadden, Arps, Slate, Meagher 3320 228 281 Deutsche Telekom AG 4766 227 398 Korea Internet Exchange for " 6386 223 248 bellsouth.net, inc. 6517 216 240 Yipes Communications, Inc. 4355 215 390 EarthLink, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:763 13:1 15:6 16:1 17:3 20:7 24:881 32:81 38:44 40:26 44:2 55:1 56:1 57:11 61:343 62:439 63:1827 64:1809 65:1812 66:2137 67:256 68:656 69:369 80:431 81:182 82:64 128:141 129:263 130:69 131:78 132:17 134:176 135:16 136:129 137:115 138:127 139:39 140:157 141:132 142:104 143:48 144:85 145:39 146:289 147:74 148:318 149:85 150:119 151:60 152:209 153:59 154:1 155:130 156:60 157:55 158:133 159:143 160:46 161:51 162:367 163:71 164:332 165:165 166:104 167:214 168:176 169:96 170:345 171:7 192:5522 193:2514 194:1998 195:1301 196:516 198:3622 199:2831 200:2971 201:5 202:4280 203:5366 204:3018 205:2024 206:2247 207:2583 208:2452 209:2894 210:977 211:411 212:897 213:979 214:23 215:25 216:3392 217:795 218:118 219:80 220:155 221:19 222:1 End of report

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The Cidr Report
by cidr-report＠potaroo.net 09 Jan '04

09 Jan '04

This report has been generated at Fri Jan 9 21:47:31 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 02-01-04 129307 90523 03-01-04 129329 90567 04-01-04 129407 90329 05-01-04 128981 90521 06-01-04 129370 90602 07-01-04 129434 90622 08-01-04 129343 90752 09-01-04 129599 90709 AS Summary 16340 Number of ASes in routing system 6539 Number of ASes announcing only one prefix 1390 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 AT&T WorldNet Services 73459456 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 09Jan04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 129414 90697 38717 29.9% All ASes AS4134 684 124 560 81.9% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 675 204 471 69.8% TW-COMM Time Warner Communications, Inc. AS6197 773 305 468 60.5% BATI-ATL BellSouth Network Solutions, Inc AS7018 1390 959 431 31.0% ATT-INTERNET4 AT&T WorldNet Services AS701 1377 954 423 30.7% ALTERNET-AS UUNET Technologies, Inc. AS7843 510 119 391 76.7% ADELPHIA-AS Adelphia Corp. AS6198 546 218 328 60.1% BATI-MIA BellSouth Network Solutions, Inc AS22909 327 17 310 94.8% DNEO-OSP1 Comcast Cable Communications, Inc. AS27364 381 77 304 79.8% ACS-INTERNET Armstrong Cable Services AS22773 328 30 298 90.9% CCINET-2 Cox Communications Inc. Atlanta AS1239 945 664 281 29.7% SPRINTLINK Sprint AS4355 380 99 281 73.9% ERMS-EARTHLNK EARTHLINK, INC AS1221 907 653 254 28.0% ASN-TELSTRA Telstra Pty Ltd AS6347 331 83 248 74.9% DIAMOND SAVVIS Communications Corporation AS17676 290 42 248 85.5% GIGAINFRA Softbank BB Corp. AS25844 243 16 227 93.4% SKADDEN1 Skadden, Arps, Slate, Meagher & Flom LLP AS6140 350 126 224 64.0% IMPSAT-USA ImpSat AS209 725 511 214 29.5% ASN-QWEST Qwest AS14654 207 3 204 98.6% WAYPORT Wayport AS11305 232 39 193 83.2% INTERLAND-NET1 Interland Incorporated AS2386 416 226 190 45.7% INS-AS AT&T Data Communications Services AS4519 198 17 181 91.4% MAAS Maas Communications AS6327 204 28 176 86.3% SHAW Shaw Communications Inc. AS6478 227 52 175 77.1% ATT-INTERNET3 AT&T WorldNet Services AS20115 576 408 168 29.2% CHARTER-NET-HKY-NC Charter Communications AS15270 206 39 167 81.1% AS-PAETEC-NET PaeTec.net -a division of PaeTecCommunications, Inc. AS2048 249 84 165 66.3% LANET-1 State of Louisiana AS9929 192 28 164 85.4% CNCNET-CN China Netcom Corp. AS9800 216 57 159 73.6% UNICOM CHINA UNICOM AS4766 393 240 153 38.9% KIX Korea Internet Exchange for "96 World Internet Exposition Total 14478 6422 8056 55.6% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI Andara High Speed Internet c/o Halifax Cable Ltd. 61.12.32.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 61.12.34.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 64.62.64.0/24 AS3549 GBLX Global Crossing 64.62.126.0/23 AS25700 SWIFTDESK SWIFTDESK VENTURE 66.41.192.0/18 AS13367 CCCH-AS3 Comcast Cable Communications Holdings, Inc 66.114.0.0/19 AS16526 BIRCH-TELECOM Birch Telecom, Inc. 66.114.28.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc. 66.114.29.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc. 66.114.30.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc. 66.114.31.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc. 69.8.128.0/17 AS7260 NORLIGHT Norlight Telecommunications 132.0.0.0/10 AS568 SUMNET-AS DISO-UNRRA 137.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 138.136.0.0/13 AS568 SUMNET-AS DISO-UNRRA 158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA 192.64.84.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.16.0/20 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.32.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.64.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.96.0/22 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.100.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.119.135.0/24 AS270 PSCNI-AS National Aeronautics and Space Administration 192.124.252.0/22 AS680 AS680 DFN-IP service G-WiN 192.135.50.0/24 AS7018 ATT-INTERNET4 AT&T WorldNet Services 192.136.71.0/24 AS719 AS719 LANLINK autonomous system 192.136.79.0/24 AS719 AS719 LANLINK autonomous system 192.153.144.0/21 AS568 SUMNET-AS DISO-UNRRA 192.172.0.0/19 AS568 SUMNET-AS DISO-UNRRA 192.188.208.0/20 AS568 SUMNET-AS DISO-UNRRA 192.243.32.0/23 AS2044 PALIN-AS Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM Bell Atlantic, Inc. 198.41.194.0/24 AS1982 ASN-NWNEXUS Northwest Nexus Inc. 198.97.72.0/21 AS568 SUMNET-AS DISO-UNRRA 198.97.80.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.88.0/24 AS89 NUSC-CSTLNET-AS Naval Underwater Systems Center 198.97.192.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.240.0/20 AS568 SUMNET-AS DISO-UNRRA 198.101.4.0/22 AS568 SUMNET-AS DISO-UNRRA 198.136.32.0/20 AS19329 MCNET Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET CityNet, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM GT Group Telecom Services Corp. 198.161.165.0/24 AS852 ASN852 Telus Advanced Communications 198.163.155.0/24 AS684 MBNET-AS Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS Skotos Tech, Inc 199.10.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.60.0.0/20 AS271 BCNET-AS University of British Columbia 199.84.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.114.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.0.0/21 AS568 SUMNET-AS DISO-UNRRA 199.114.128.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.136.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.152.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.154.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.114.156.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.160.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.123.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.123.16.0/20 AS568 SUMNET-AS DISO-UNRRA 199.123.80.0/21 AS568 SUMNET-AS DISO-UNRRA 199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 200.120.0.0/16 AS22047 CL-VPNS-LACNIC VTR BANDA ANCHA S.A. 202.4.252.0/22 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.0.0/20 AS4658 NETFRONT-AS NETFRONT I.T. LIMITED (HONG KONG) 202.70.16.0/22 AS17888 SINGTEL-HK SingTel Hong Kong Limited 202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.72.112.0/22 AS22351 INTELSAT-1 INTELSAT 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.86.128.0/24 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 202.86.142.0/24 AS30362 HPT-ASN Hawaii-Pacific Teleport 202.86.171.0/24 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 202.86.172.0/23 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 202.86.190.0/24 AS4750 loxley-th Loxley Information Co., Ltd. 202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 203.32.4.0/23 AS7617 APNIC-AS-2-BLOCK Asia Pacific Network Information Centre 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.76.224.0/24 AS9549 COMDEK-ISP-AS-AP Comdek ISP 203.86.2.0/23 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 203.101.0.0/17 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks 203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd 203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.111.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.112.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.118.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.122.0/24 AS4802 WANTREE-AS-AP Wantree Development 203.132.123.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.124.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.125.0/24 AS4817 TECHEX1-AS-AP Techex Primary Netblock 203.135.99.0/24 AS2687 IBM-MMD-AS IBM 204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 204.69.144.0/22 AS5668 AS-5668 CenturyTel Internet Holdings, Inc. 204.154.125.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS UUNET Technologies, Inc. 206.41.32.0/19 AS14824 NEWSOUTH NewSouth Communications Corp. 206.81.187.0/24 AS19194 JOVITA Sentris Network LLC 206.108.34.0/24 AS852 ASN852 Telus Advanced Communications 206.108.35.0/24 AS852 ASN852 Telus Advanced Communications 206.167.57.0/24 AS376 RISQ-AS Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL Telesat International Ltd. 207.162.192.0/19 AS4589 EASYNET Easynet Group Plc 207.231.96.0/19 AS11194 NUNETPA NuNet Inc 208.81.187.0/24 AS19194 JOVITA Sentris Network LLC 209.87.192.0/20 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream 209.169.219.0/24 AS189 GENUITY-AS189 Genuity 209.169.223.0/24 AS189 GENUITY-AS189 Genuity 209.172.0.0/18 AS7770 TRITON Triton Technologies, Inc. 209.196.192.0/19 AS1784 GNAPS Global NAPs Networks 209.213.32.0/19 AS10629 INTERPAC Inter-Pacific Network Services 209.213.50.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.51.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.55.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.56.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL Telesat International Ltd. 209.240.96.0/19 AS10815 KCNET KCnet, Inc. 209.251.0.0/19 AS11036 SISCOM SISCOM, Inc 209.251.64.0/19 AS10266 NETWAY-AS MDC, Inc. 210.213.0.0/19 AS6453 GIEUROPE Teleglobe America Inc. 216.18.224.0/21 AS11458 IMBRIS IMBRIS, INC. 216.18.224.0/22 AS11458 IMBRIS IMBRIS, INC. 216.18.228.0/22 AS11458 IMBRIS IMBRIS, INC. 216.36.46.0/24 AS7176 GENUITY-AS7176 Genuity 216.36.47.0/24 AS7176 GENUITY-AS7176 Genuity 216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services 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

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survey on BGP damping
by Beichuan Zhang 08 Jan '04

08 Jan '04

*** Apology if you've read it before. I re-send this survey hoping to get *** more replies. Thanks. Hi, We are conducting a survey of BGP damping deployment and would greatly appreciate if you could take a few minutes to answer the following questions. There are a number of interesting results and various recommendations for damping settings. However, we have found only limited information on who does(does not) deploy damping and what parameter settings are selected in practice. If you are willing to participate, please send replies directly to us. We will collect the results (removing any private information regarding specific sites) and post the results to the list. Thanks! --- beichuan (1) Does your AS have BGP route flap damping turned on? * Yes * No (please skip to comments) (2) What damping parameters do you use? * Cisco Default * Juniper Default * RIPE recommendation * Customized (3) On which links do you enable damping? * To customers only * To providers * To peers * All the above (4) Comments Please tell us more such as: What kind of network are you managing (any specific names will be removed in the published study)? Why (why not) do you enable damping? If you enable damping, why did you choose your current parameters? Has your site seen specific problems that were prevented by damping (or caused by damping)? We welcome any other comments you feel are relevant. Thanks!

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Weekly Routing Table Report
by Routing Table Analysis 02 Jan '04

02 Jan '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 03 Jan, 2004 Analysis Summary ---------------- BGP routing table entries examined: 131586 Prefixes after maximum aggregation: 80741 Unique aggregates announced to Internet: 63057 Total ASes present in the Internet Routing Table: 16392 Origin-only ASes present in the Internet Routing Table: 14240 Origin ASes announcing only one prefix: 6526 Transit ASes present in the Internet Routing Table: 2152 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 30 Illegal AS announcements present in the Routing Table: 22 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1275093092 Equivalent to 76 /8s, 0 /16s and 96 /24s Percentage of available address space announced: 34.4 Percentage of allocated address space announced: 60.0 Percentage of available address space allocated: 57.3 Total number of prefixes smaller than registry allocations: 57915 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 24398 Total APNIC prefixes after maximum aggregation: 12993 Prefixes being announced from the APNIC address blocks: 22878 Unique aggregates announced from the APNIC address blocks: 12819 APNIC Region origin ASes present in the Internet Routing Table: 1979 APNIC Region origin ASes announcing only one prefix: 584 APNIC Region transit ASes present in the Internet Routing Table: 308 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 133212800 Equivalent to 7 /8s, 240 /16s and 170 /24s Percentage of available APNIC address space announced: 71.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77226 Total ARIN prefixes after maximum aggregation: 47810 Prefixes being announced from the ARIN address blocks: 59777 Unique aggregates announced from the ARIN address blocks: 20731 ARIN Region origin ASes present in the Internet Routing Table: 8818 ARIN Region origin ASes announcing only one prefix: 3092 ARIN Region transit ASes present in the Internet Routing Table: 840 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 213173408 Equivalent to 12 /8s, 180 /16s and 196 /24s Percentage of available ARIN address space announced: 74.7 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 23342 Total RIPE prefixes after maximum aggregation: 17056 Prefixes being announced from the RIPE address blocks: 20220 Unique aggregates announced from the RIPE address blocks: 13417 RIPE Region origin ASes present in the Internet Routing Table: 5075 RIPE Region origin ASes announcing only one prefix: 2716 RIPE Region transit ASes present in the Internet Routing Table: 887 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 147930240 Equivalent to 8 /8s, 209 /16s and 60 /24s Percentage of available RIPE address space announced: 67.8 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 RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5452 Total LACNIC prefixes after maximum aggregation: 2194 Prefixes being announced from the LACNIC address blocks: 5068 Unique aggregates announced from the LACNIC address blocks: 3025 LACNIC Region origin ASes present in the Internet Routing Table: 365 LACNIC Region origin ASes announcing only one prefix: 106 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 13868288 Equivalent to 0 /8s, 211 /16s and 157 /24s Percentage of available LACNIC address space announced: 41.3 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1146 Total AfriNIC prefixes after maximum aggregation: 688 Prefixes being announced from the AfriNIC address blocks: 727 Unique aggregates announced from the AfriNIC address blocks: 559 AfriNIC Region origin ASes present in the Internet Routing Table: 93 AfriNIC Region origin ASes announcing only one prefix: 28 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 1762048 Equivalent to 0 /8s, 26 /16s and 227 /24s Percentage of available AfriNIC address space announced: 10.5 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 909 1098 654 Telstra Pty Ltd 4134 716 2413 110 Data Communications Bureau 4766 395 2903 233 Korea Internet Exchange for " 2907 363 1847 340 SINET Japan 9443 343 69 79 Primus Telecommunications 703 338 372 262 UUNET 4755 323 130 58 Videsh Sanchar Nigam Ltd. Aut 17557 309 22 149 Pakistan Telecom 17676 292 4300 38 XTAGE CORPORATION 2764 286 289 235 connect.com.au pty ltd 9583 274 44 11 Satyam Infoway Ltd., 7474 264 305 212 Optus Communications Pty Ltd 4538 250 1811 21 China Education and Research 9929 223 154 27 China Netcom Corp. 9942 217 69 128 COMindico Australia 9800 212 346 57 CHINA UNICOM 9498 175 22 29 BHARTI BT INTERNET LTD. 17642 152 40 111 RequestDSL BGP AS# for Sydney 3786 150 752 132 DACOM Corporation 4837 149 1272 99 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1416 7059 978 AT&T 701 1404 8663 963 UUNET Technologies, Inc. 1239 948 3089 660 Sprint 6197 826 477 249 BellSouth Network Solutions, 18566 735 176 8 Covad Communications 3356 733 10926 582 Level 3 Communications, LLC 209 725 3529 509 Qwest 4323 676 589 202 Time Warner Communications, I 20115 583 321 331 Charter Communications 6198 569 338 194 BellSouth Network Solutions, 7843 508 523 117 Adelphia Corp. 852 505 1124 402 Telus Advanced Communications 7066 501 207 270 Virginia Polytechnic Institut 7132 452 7396 310 Southwestern Bell Internet Se 2386 409 532 231 AT&T Data Communications Serv 19029 406 172 262 New Edge Networks 690 399 58 269 Merit Network 4355 390 323 101 EarthLink, Inc. 705 381 196 236 UUNET Technologies, Inc. 27364 381 28 24 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 696 2059 579 UUNET - Commercial IP service 3301 297 1154 282 TeliaNet Sweden 3320 280 1972 230 Deutsche Telekom AG 8220 265 412 250 COLT Internet - International 1257 258 505 192 SWIPnet Swedish IP Network 680 229 2022 226 DFN-IP service G-WiN 13083 215 51 8 Mannesmann Datenverarbeitung 3246 185 424 183 Song Networks 786 174 1810 174 The JANET IP Service 5515 173 762 135 Sonera Solution Autonomous Sy 25186 168 201 109 France Telecom Transpac's Tra 8708 165 111 158 Romania Data Systems S.A. 3215 144 754 67 France Telecom Transpac 3303 144 557 137 Swisscom Ltd 5400 140 176 125 BT Ignite European Backbone 719 134 288 104 LANLINK autonomous system 12302 126 18 33 MobiFon S.A. 3269 119 941 64 TELECOM ITALIA 2856 118 1294 108 BTnet UK Regional network 3352 102 876 30 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 351 120 69 ImpSat 8151 240 336 124 UniNet S.A. de C.V. 11172 198 77 44 Servicios Alestra S.A de C.V 7303 178 52 18 Telecom Argentina Stet-France 16814 156 10 5 NSS, S.A. 6505 132 90 92 Global One Communicaoes Ltda 6503 126 220 93 AVANTEL, S.A. 6147 123 78 20 Telefonica Del Peru 11340 108 3 29 Red Universitaria Nacional 8065 77 10 21 Empresas Publicas de Medellin 6535 76 5 19 Chilesat Servicios Empresari 15311 76 17 37 Telefonica Empresas 4270 71 18 9 Red de Interconexion Universi 11992 68 25 32 Integrated Systems 11311 66 7 22 Sinectis S.A. 7080 64 4 1 Electronica y Comunicaciones 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 14420 61 4 23 ANDINATEL S.A. 1916 59 247 39 Fundacao de Amparo a Pesquisa 5639 58 7 8 Telecommunications Services o AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 249 632 218 The Internet Solution 5536 102 6 12 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 90 272 80 The Internetworking Company o 2561 56 6 3 Egyptian Universities Network 11845 36 9 11 Data Pro Business Online 3208 33 2 1 ARN Network 16637 26 9 19 Johnnic e-Ventures 9129 25 3 4 UUNET Kenya 5713 24 93 22 Telkom SA Ltd 12455 24 4 2 Jambonet Autonomous system 24835 23 18 6 RAYA Telecom - Egypt 6713 22 38 9 Itissalat Al-MAGHRIB 10798 18 1 12 Standard Bank of South Africa 8524 17 1 3 AUCEGYPT Autonomous System 12258 15 3 10 Vodacom Internet Company 15706 15 2 5 Sudatel Internet Exchange Aut 17148 14 1 8 First National Bank 2609 12 10 3 Tunisia BackBone AS 8346 12 6 12 SONATEL-AS Autonomous System Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 735 727 Covad Communications 4134 716 606 Data Communications Bureau 6197 826 577 BellSouth Network Solutions, 4323 676 474 Time Warner Communications, I 701 1404 441 UUNET Technologies, Inc. 7843 508 391 Adelphia Corp. 6198 569 375 BellSouth Network Solutions, 27364 381 357 Armstrong Cable Services 22909 321 308 Comcast Cable Corporation 5668 320 304 Century Telephone 22773 327 297 Cox Communications, Inc. Atla 4355 390 289 EarthLink, Inc. 1239 948 288 Sprint 6140 351 282 ImpSat 4755 323 265 Videsh Sanchar Nigam Ltd. Aut 9443 343 264 Primus Telecommunications 9583 274 263 Satyam Infoway Ltd., 1221 909 255 Telstra Pty Ltd 17676 292 254 XTAGE CORPORATION 20115 583 252 Charter Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 31769 UNALLOCATED 12.164.144.0/24 7018 AT&T 31784 UNALLOCATED 12.167.154.0/23 7018 AT&T 31753 UNALLOCATED 63.251.94.0/24 10913 InterNAP Network Ser 31769 UNALLOCATED 65.218.210.0/24 701 UUNET Technologies, 31769 UNALLOCATED 65.218.210.0/23 7018 AT&T 31769 UNALLOCATED 65.218.211.0/24 701 UUNET Technologies, 31766 UNALLOCATED 67.99.177.0/24 4513 PFM Communications, 31795 UNALLOCATED 68.88.220.0/24 7132 Southwestern Bell In 31780 UNALLOCATED 69.38.148.0/24 701 UUNET Technologies, 31752 UNALLOCATED 69.60.224.0/20 23184 Persona Communicatio 64512 PRIVATE 131.95.1.240/28 16430 University of Southe 64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D 31763 UNALLOCATED 205.235.32.0/19 3593 EPIX 31763 UNALLOCATED 205.235.48.0/24 3593 EPIX 31763 UNALLOCATED 205.235.49.0/24 3593 EPIX 31757 UNALLOCATED 207.105.158.0/24 7132 Southwestern Bell In 31776 UNALLOCATED 208.28.117.0/24 6395 Broadwing Communicat 31766 UNALLOCATED 209.10.138.0/24 4513 PFM Communications, 31779 UNALLOCATED 216.66.230.0/24 701 UUNET Technologies, 31749 UNALLOCATED 216.248.43.0/24 2551 ICG NetAhead, Inc Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 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 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 568 DISO-UNRRA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:4 /10:6 /11:15 /12:57 /13:103 /14:279 /15:494 /16:7530 /17:1853 /18:3433 /19:8876 /20:9322 /21:6729 /22:9408 /23:11020 /24:71781 /25:186 /26:235 /27:140 /28:32 /29:7 /30:45 /31:0 /32:12 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 729 735 Covad Communications 6197 674 826 BellSouth Network Solutions, 7018 529 1416 AT&T 701 430 1404 UUNET Technologies, Inc. 6198 427 569 BellSouth Network Solutions, 702 425 696 UUNET - Commercial IP service 7066 394 501 Virginia Polytechnic Institut 27364 375 381 Armstrong Cable Services 3356 372 733 Level 3 Communications, LLC 20115 364 583 Charter Communications 690 361 399 Merit Network 1239 339 948 Sprint 5668 283 320 Century Telephone 19029 264 406 New Edge Networks 25844 244 244 Skadden, Arps, Slate, Meagher 3320 227 280 Deutsche Telekom AG 4766 224 395 Korea Internet Exchange for " 6386 218 244 bellsouth.net, inc. 4355 215 390 EarthLink, Inc. 6517 214 239 Yipes Communications, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 5:1 9:1 12:761 13:1 15:6 16:1 17:3 20:7 22:2 24:876 25:4 32:83 35:1 36:1 38:44 40:27 44:1 51:1 55:1 56:1 57:14 61:342 62:452 63:1817 64:1798 65:1810 66:2206 67:247 68:691 69:377 80:431 81:182 82:58 128:143 129:259 130:69 131:80 132:17 134:176 135:16 136:129 137:115 138:126 139:38 140:158 141:133 142:111 143:48 144:84 145:39 146:289 147:73 148:317 149:87 150:119 151:60 152:209 153:59 154:1 155:131 156:60 157:55 158:134 159:137 160:46 161:50 162:368 163:70 164:328 165:174 166:104 167:210 168:176 169:96 170:297 171:8 192:5513 193:2489 194:2006 195:1298 196:515 198:3626 199:2828 200:2996 201:5 202:4334 203:5420 204:3022 205:2038 206:2249 207:2586 208:2457 209:2888 210:1008 211:404 212:907 213:978 214:23 215:25 216:3356 217:804 218:121 219:80 220:150 221:18 End of report

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The Cidr Report
by cidr-report＠potaroo.net 02 Jan '04

02 Jan '04

This report has been generated at Fri Jan 2 21:47:21 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 26-12-03 129101 90485 27-12-03 129152 90411 28-12-03 128993 90454 29-12-03 129056 90534 30-12-03 129312 90459 31-12-03 129124 90575 01-01-04 129207 90551 02-01-04 129307 90461 AS Summary 16314 Number of ASes in routing system 6526 Number of ASes announcing only one prefix 1395 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 AT&T WorldNet Services 73402112 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 02Jan04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 129175 90402 38773 30.0% All ASes AS4134 709 124 585 82.5% CHINANET-BACKBONE No.31,Jin-rong Street AS6197 823 296 527 64.0% BATI-ATL BellSouth Network Solutions, Inc AS4323 675 204 471 69.8% TW-COMM Time Warner Communications, Inc. AS7018 1395 960 435 31.2% ATT-INTERNET4 AT&T WorldNet Services AS701 1386 955 431 31.1% ALTERNET-AS UUNET Technologies, Inc. AS7843 508 117 391 77.0% ADELPHIA-AS Adelphia Corp. AS6198 569 228 341 59.9% BATI-MIA BellSouth Network Solutions, Inc AS22909 320 13 307 95.9% DNEO-OSP1 Comcast Cable Communications, Inc. AS27364 381 81 300 78.7% ACS-INTERNET Armstrong Cable Services AS22773 327 31 296 90.5% CCINET-2 Cox Communications Inc. Atlanta AS1239 957 669 288 30.1% SPRINTLINK Sprint AS4355 380 101 279 73.4% ERMS-EARTHLNK EARTHLINK, INC AS1221 912 657 255 28.0% ASN-TELSTRA Telstra Pty Ltd AS17676 290 42 248 85.5% GIGAINFRA Softbank BB Corp. AS6347 325 83 242 74.5% DIAMOND SAVVIS Communications Corporation AS25844 243 16 227 93.4% SKADDEN1 Skadden, Arps, Slate, Meagher & Flom LLP AS9583 273 55 218 79.9% SATYAMNET-AS Satyam Infoway Ltd., AS209 730 515 215 29.5% ASN-QWEST Qwest AS6140 351 136 215 61.3% IMPSAT-USA ImpSat AS14654 206 3 203 98.5% WAYPORT Wayport AS11305 231 38 193 83.5% INTERLAND-NET1 Interland Incorporated AS4519 194 13 181 93.3% MAAS Maas Communications AS6478 218 41 177 81.2% ATT-INTERNET3 AT&T WorldNet Services AS9929 204 27 177 86.8% CNCNET-CN China Netcom Corp. AS6327 204 28 176 86.3% SHAW Shaw Communications Inc. AS2386 408 239 169 41.4% INS-AS AT&T Data Communications Services AS20115 581 414 167 28.7% CHARTER-NET-HKY-NC Charter Communications AS15270 204 41 163 79.9% AS-PAETEC-NET PaeTec.net -a division of PaeTecCommunications, Inc. AS2048 245 83 162 66.1% LANET-1 State of Louisiana AS4766 389 234 155 39.8% KIX Korea Internet Exchange for "96 World Internet Exposition Total 14638 6444 8194 56.0% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI Andara High Speed Internet c/o Halifax Cable Ltd. 61.12.32.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 61.12.34.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 64.62.64.0/24 AS3549 GBLX Global Crossing 64.62.126.0/23 AS25700 SWIFTDESK SWIFTDESK VENTURE 66.41.192.0/18 AS13367 CCCH-AS3 Comcast Cable Communications Holdings, Inc 69.8.128.0/17 AS7260 NORLIGHT Norlight Telecommunications 132.0.0.0/10 AS568 SUMNET-AS DISO-UNRRA 137.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 138.136.0.0/13 AS568 SUMNET-AS DISO-UNRRA 140.143.2.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA 192.64.84.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.16.0/20 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.32.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.64.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.96.0/22 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.100.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.119.135.0/24 AS270 PSCNI-AS National Aeronautics and Space Administration 192.124.252.0/22 AS680 AS680 DFN-IP service G-WiN 192.135.50.0/24 AS7018 ATT-INTERNET4 AT&T WorldNet Services 192.136.71.0/24 AS719 AS719 LANLINK autonomous system 192.136.79.0/24 AS719 AS719 LANLINK autonomous system 192.153.144.0/21 AS568 SUMNET-AS DISO-UNRRA 192.172.0.0/19 AS568 SUMNET-AS DISO-UNRRA 192.188.208.0/20 AS568 SUMNET-AS DISO-UNRRA 192.243.32.0/23 AS2044 PALIN-AS Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM Bell Atlantic, Inc. 198.41.194.0/24 AS1982 ASN-NWNEXUS Northwest Nexus Inc. 198.97.72.0/21 AS568 SUMNET-AS DISO-UNRRA 198.97.80.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.88.0/24 AS89 NUSC-CSTLNET-AS Naval Underwater Systems Center 198.97.192.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.240.0/20 AS568 SUMNET-AS DISO-UNRRA 198.101.4.0/22 AS568 SUMNET-AS DISO-UNRRA 198.136.32.0/20 AS19329 MCNET Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET CityNet, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM GT Group Telecom Services Corp. 198.161.165.0/24 AS852 ASN852 Telus Advanced Communications 198.163.155.0/24 AS684 MBNET-AS Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS Skotos Tech, Inc 199.10.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.60.0.0/20 AS271 BCNET-AS University of British Columbia 199.84.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.114.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.0.0/21 AS568 SUMNET-AS DISO-UNRRA 199.114.128.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.136.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS DoD Network Information Center 199.114.152.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.154.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.114.156.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.160.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.123.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.123.16.0/20 AS568 SUMNET-AS DISO-UNRRA 199.123.80.0/21 AS568 SUMNET-AS DISO-UNRRA 199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 200.120.0.0/16 AS22047 CL-VPNS-LACNIC VTR BANDA ANCHA S.A. 202.0.180.0/24 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.4.252.0/22 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd. 202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.72.112.0/22 AS22351 INTELSAT-1 INTELSAT 202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 203.32.4.0/23 AS7617 APNIC-AS-2-BLOCK Asia Pacific Network Information Centre 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.76.128.0/24 AS9729 IS-AP iAdvantage Limited 203.76.224.0/24 AS9549 COMDEK-ISP-AS-AP Comdek ISP 203.86.2.0/23 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks 203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd 203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.109.0/24 AS10141 CALOUNDRA-AS-AP Caloundra.net 203.132.111.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.112.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.118.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.122.0/24 AS4802 WANTREE-AS-AP Wantree Development 203.132.123.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.124.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.125.0/24 AS4817 TECHEX1-AS-AP Techex Primary Netblock 203.135.99.0/24 AS2687 IBM-MMD-AS IBM 204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 204.69.144.0/22 AS5668 AS-5668 CenturyTel Internet Holdings, Inc. 204.154.125.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT 205.150.0.0/15 AS701 ALTERNET-AS UUNET Technologies, Inc. 206.41.32.0/19 AS14824 NEWSOUTH NewSouth Communications Corp. 206.81.187.0/24 AS19194 JOVITA Sentris Network LLC 206.108.34.0/24 AS852 ASN852 Telus Advanced Communications 206.108.35.0/24 AS852 ASN852 Telus Advanced Communications 206.167.57.0/24 AS376 RISQ-AS Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL Telesat International Ltd. 207.47.39.0/24 AS816 UUNET-AS4 UUNET Technologies, Inc. 207.162.192.0/19 AS4589 EASYNET Easynet Group Plc 207.231.96.0/19 AS11194 NUNETPA NuNet Inc 208.81.187.0/24 AS19194 JOVITA Sentris Network LLC 209.169.219.0/24 AS189 GENUITY-AS189 Genuity 209.169.223.0/24 AS189 GENUITY-AS189 Genuity 209.172.0.0/18 AS7770 TRITON Triton Technologies, Inc. 209.196.192.0/19 AS1784 GNAPS Global NAPs Networks 209.213.32.0/19 AS10629 INTERPAC Inter-Pacific Network Services 209.213.50.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.51.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.55.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.56.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL Telesat International Ltd. 209.240.96.0/19 AS10815 KCNET KCnet, Inc. 209.251.0.0/19 AS11036 SISCOM SISCOM, Inc 209.251.64.0/19 AS10266 NETWAY-AS MDC, Inc. 210.213.0.0/19 AS6453 GIEUROPE Teleglobe America Inc. 216.18.224.0/21 AS11458 IMBRIS IMBRIS, INC. 216.18.224.0/22 AS11458 IMBRIS IMBRIS, INC. 216.18.228.0/22 AS11458 IMBRIS IMBRIS, INC. 216.36.46.0/24 AS7176 GENUITY-AS7176 Genuity 216.36.47.0/24 AS7176 GENUITY-AS7176 Genuity 216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services 220.228.0.0/16 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.0.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.0.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.32.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.64.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.96.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.128.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.128.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.160.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.192.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.228.224.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.0.0/16 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.0.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.0.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.32.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.64.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.96.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.128.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.128.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.160.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.192.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 220.229.224.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd. 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

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