- routing-wg - mailman.ripe.net

[routing-wg]RE: a (perhaps) naive question...
by Paul Francis 24 Sep '08

24 Sep '08

Actually, never mind, I got the answer (and feel a bit stupid for not knowing it in the first place). PF > -----Original Message----- > From: Paul Francis > Sent: Wednesday, September 24, 2008 3:16 PM > To: Routing WG > Subject: a (perhaps) naive question... > > > > I was wondering the other day why we don't do aggregating in > BGP along the lines of registry assignments. For instance, > what stops the set of ISPs within Europe from from taking the > 15 or 20 prefixes given to RIPE by IANA, and collectively > aggregating those prefixes when advertising to non-RIPE ISPs? > It seems to me that they could advertise all of their AS#'s > as a huge AS-set for these prefixes. > > Is there a technical issue that prevents this, or does the > organizational effort needed simply outweigh the benefit that > would accrue? > > PF >

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[routing-wg]New AS Number block allocated to the RIPE NCC
by Alex le Heux 24 Sep '08

24 Sep '08

Dear Colleagues, The RIPE NCC received the AS Number Block 48128 - 49151 from the IANA in September 2008. You may want to update your records accordingly. Best regards, Alex Le Heux RIPE NCC

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[routing-wg]Request for references to recent studies on deployment of route flap damping
by Benno Overeinder 23 Sep '08

23 Sep '08

Hi, For some modeling and simulation work, we are interested in recent studies on the deployment of route flap damping. For example, similar to the study performed by Greg Hankins from Force10 and others, whom have presented survey results about BGP usage on RIPE56 (http://www.ripe.net/ripe/meetings/ripe-56/presentations/eix/Hankins-Peering…). Unfortunately, route flap damping was not addressed in this study. Are there any large carrier networks (tier 1 and large tier 2 networks) configured with route flap damping? Are there any references to recent studies on the deployment of route flap damping by network operators? Thanks, -- Benno Overeinder P.S. Similar message has been sent to IDR email list of the IETF. Sorry for duplicates. -- Benno J. Overeinder NLnet Labs http://www.nlnetlabs.nl/

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[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 19 Sep '08

19 Sep '08

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 For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 20 Sep, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 269427 Prefixes after maximum aggregation: 129901 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 131012 Total ASes present in the Internet Routing Table: 29274 Prefixes per ASN: 9.20 Origin-only ASes present in the Internet Routing Table: 25443 Origin ASes announcing only one prefix: 12385 Transit ASes present in the Internet Routing Table: 3831 Transit-only ASes present in the Internet Routing Table: 82 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 26 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 558 Unregistered ASNs in the Routing Table: 209 Number of 32-bit ASNs allocated by the RIRs: 60 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 755 Number of addresses announced to Internet: 1921880352 Equivalent to 114 /8s, 141 /16s and 145 /24s Percentage of available address space announced: 51.9 Percentage of allocated address space announced: 63.0 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.6 Total number of prefixes smaller than registry allocations: 132145 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 62233 Total APNIC prefixes after maximum aggregation: 22899 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 59152 Unique aggregates announced from the APNIC address blocks: 26429 APNIC Region origin ASes present in the Internet Routing Table: 3387 APNIC Prefixes per ASN: 17.46 APNIC Region origin ASes announcing only one prefix: 905 APNIC Region transit ASes present in the Internet Routing Table: 537 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 376338720 Equivalent to 22 /8s, 110 /16s and 121 /24s Percentage of available APNIC address space announced: 80.1 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 122394 Total ARIN prefixes after maximum aggregation: 64619 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 91649 Unique aggregates announced from the ARIN address blocks: 35095 ARIN Region origin ASes present in the Internet Routing Table: 12444 ARIN Prefixes per ASN: 7.36 ARIN Region origin ASes announcing only one prefix: 4804 ARIN Region transit ASes present in the Internet Routing Table: 1200 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 364358112 Equivalent to 21 /8s, 183 /16s and 169 /24s Percentage of available ARIN address space announced: 74.9 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 58324 Total RIPE prefixes after maximum aggregation: 35258 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 53463 Unique aggregates announced from the RIPE address blocks: 35860 RIPE Region origin ASes present in the Internet Routing Table: 11903 RIPE Prefixes per ASN: 4.49 RIPE Region origin ASes announcing only one prefix: 6267 RIPE Region transit ASes present in the Internet Routing Table: 1815 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 372326720 Equivalent to 22 /8s, 49 /16s and 65 /24s Percentage of available RIPE address space announced: 85.4 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-49151 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 21824 Total LACNIC prefixes after maximum aggregation: 5394 LACNIC Deaggregation factor: 4.05 Prefixes being announced from the LACNIC address blocks: 20024 Unique aggregates announced from the LACNIC address blocks: 11116 LACNIC Region origin ASes present in the Internet Routing Table: 998 LACNIC Prefixes per ASN: 20.06 LACNIC Region origin ASes announcing only one prefix: 329 LACNIC Region transit ASes present in the Internet Routing Table: 172 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 56720896 Equivalent to 3 /8s, 97 /16s and 126 /24s Percentage of available LACNIC address space announced: 56.3 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4094 Total AfriNIC prefixes after maximum aggregation: 1267 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4413 Unique aggregates announced from the AfriNIC address blocks: 2040 AfriNIC Region origin ASes present in the Internet Routing Table: 257 AfriNIC Prefixes per ASN: 17.17 AfriNIC Region origin ASes announcing only one prefix: 80 AfriNIC Region transit ASes present in the Internet Routing Table: 54 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 12729088 Equivalent to 0 /8s, 194 /16s and 59 /24s Percentage of available AfriNIC address space announced: 37.9 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1721 538 181 Videsh Sanchar Nigam Ltd. Aut 17488 1384 94 101 Hathway IP Over Cable Interne 9583 1107 86 472 Sify Limited 4766 875 6407 359 Korea Telecom (KIX) 4134 842 13651 345 CHINANET-BACKBONE 23577 819 35 695 Korea Telecom (ATM-MPLS) 18101 766 152 51 Reliance Infocom Ltd Internet 4780 715 353 61 Digital United Inc. 9498 677 291 54 BHARTI BT INTERNET LTD. 4808 629 1156 138 CNCGROUP IP network: China169 Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4292 3416 339 bellsouth.net, inc. 209 2927 4001 618 Qwest 6298 1980 316 736 Cox Communicatons 20115 1689 1428 713 Charter Communications 1785 1656 710 156 AppliedTheory Corporation 2386 1550 691 892 AT&T Data Communications Serv 4323 1516 1065 368 Time Warner Telecom 7018 1402 5802 973 AT&T WorldNet Services 11492 1217 152 11 Cable One 6478 1169 241 185 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 421 1777 378 TDC Tele Danmark 3301 332 1444 303 TeliaNet Sweden 30890 329 87 175 SC Kappa Invexim SRL 3215 327 2756 106 France Telecom Transpac 3320 324 7063 273 Deutsche Telekom AG 8866 319 77 21 Bulgarian Telecommunication C 8452 316 188 11 TEDATA 5462 296 794 27 Telewest Broadband 8551 287 270 37 Bezeq International 680 275 2047 265 DFN-IP service G-WiN Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1739 2877 226 UniNet S.A. de C.V. 11830 668 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 7303 490 241 70 Telecom Argentina Stet-France 10620 429 105 60 TVCABLE BOGOTA 16814 426 27 10 NSS, S.A. 6471 420 85 48 ENTEL CHILE S.A. 11172 409 118 72 Servicios Alestra S.A de C.V 28573 351 443 28 NET Servicos de Comunicao S.A 14117 345 23 9 Telefonica del Sur S.A. Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 516 67 32 LINKdotNET AS number 20858 403 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 232 215 139 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 555 68 Telkom SA Ltd 33776 115 6 3 Starcomms Nigeria Limited 29571 107 13 8 Ci Telecom Autonomous system Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4292 3416 339 bellsouth.net, inc. 209 2927 4001 618 Qwest 6298 1980 316 736 Cox Communicatons 8151 1739 2877 226 UniNet S.A. de C.V. 4755 1721 538 181 Videsh Sanchar Nigam Ltd. Aut 20115 1689 1428 713 Charter Communications 1785 1656 710 156 AppliedTheory Corporation 2386 1550 691 892 AT&T Data Communications Serv 4323 1516 1065 368 Time Warner Telecom 7018 1402 5802 973 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2927 2309 Qwest 4755 1721 1540 Videsh Sanchar Nigam Ltd. Aut 8151 1739 1513 UniNet S.A. de C.V. 1785 1656 1500 AppliedTheory Corporation 17488 1384 1283 Hathway IP Over Cable Interne 6298 1980 1244 Cox Communicatons 11492 1217 1206 Cable One 4323 1516 1148 Time Warner Telecom 18566 1049 1039 Covad Communications 6478 1169 984 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.75.116.0/22 10796 ServiceCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio 63.143.71.0/24 701 UUNET Technologies, Inc. 63.143.115.0/24 701 UUNET Technologies, Inc. Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:17 /11:45 /12:147 /13:294 /14:529 /15:1072 /16:10090 /17:4390 /18:7733 /19:16281 /20:19082 /21:18612 /22:23366 /23:24446 /24:140670 /25:791 /26:968 /27:760 /28:89 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2846 4292 bellsouth.net, inc. 6298 1955 1980 Cox Communicatons 209 1690 2927 Qwest 2386 1231 1550 AT&T Data Communications Serv 11492 1193 1217 Cable One 17488 1191 1384 Hathway IP Over Cable Interne 1785 1125 1656 AppliedTheory Corporation 6478 1062 1169 AT&T Worldnet Services 4755 1057 1721 Videsh Sanchar Nigam Ltd. Aut 18566 1030 1049 Covad Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:139 12:2145 13:2 15:20 16:3 17:5 18:13 20:35 24:1087 32:59 38:494 40:91 41:723 43:1 44:2 47:12 52:3 55:3 56:3 57:26 58:527 59:520 60:451 61:950 62:1224 63:2033 64:3215 65:2381 66:3478 67:1243 68:780 69:2308 70:848 71:171 72:2026 73:7 74:1183 75:166 76:265 77:780 78:831 79:256 80:948 81:852 82:584 83:372 84:577 85:1018 86:399 87:713 88:336 89:1354 90:21 91:1497 92:264 93:836 94:147 96:65 97:80 98:321 99:8 114:105 115:47 116:987 117:365 118:229 119:500 120:86 121:593 122:853 123:443 124:857 125:1194 128:357 129:201 130:134 131:411 132:70 133:9 134:178 135:32 136:223 137:96 138:142 139:92 140:503 141:102 142:408 143:300 144:325 145:51 146:370 147:156 148:516 149:209 150:128 151:181 152:147 153:136 154:10 155:281 156:175 157:299 158:170 159:300 160:275 161:137 162:255 163:150 164:515 165:499 166:367 167:331 168:631 169:143 170:444 171:33 172:10 173:33 186:1 187:10 188:1 189:608 190:2262 192:5751 193:4144 194:3259 195:2579 196:996 198:3724 199:3297 200:5566 201:1505 202:7851 203:8093 204:3946 205:2136 206:2356 207:2731 208:3600 209:3411 210:2604 211:1088 212:1453 213:1622 214:178 215:50 216:4357 217:1213 218:345 219:437 220:1064 221:415 222:314 End of report

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[routing-wg]BGP Update Report
by cidr-report＠potaroo.net 19 Sep '08

19 Sep '08

BGP Update Report Interval: 18-Aug-08 -to- 18-Sep-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9583 301731 3.8% 226.5 -- SIFY-AS-IN Sify Limited 2 - AS1803 126042 1.6% 94.9 -- ICMNET-5 - Sprint 3 - AS4538 107539 1.3% 21.4 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS5691 77600 1.0% 5969.2 -- MITRE-AS-5 - The MITRE Corporation 5 - AS8151 76788 1.0% 31.8 -- Uninet S.A. de C.V. 6 - AS6389 67460 0.8% 15.5 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 7 - AS9051 65154 0.8% 407.2 -- IDM Autonomous System 8 - AS209 51813 0.7% 10.8 -- ASN-QWEST - Qwest 9 - AS14593 50458 0.6% 50458.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 10 - AS10396 46699 0.6% 667.1 -- COQUI-NET - DATACOM CARIBE, INC. 11 - AS17488 44961 0.6% 30.8 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS4184 43385 0.5% 21692.5 -- STORTEK-WHQ - Storage Technology Corporation 13 - AS8866 39604 0.5% 123.0 -- BTC-AS Bulgarian Telecommunication Company Plc. 14 - AS20115 38076 0.5% 21.4 -- CHARTER-NET-HKY-NC - Charter Communications 15 - AS18231 36058 0.5% 146.0 -- EXATT-AS-AP IOL NETCOM LTD 16 - AS7018 35690 0.5% 24.2 -- ATT-INTERNET4 - AT&T WorldNet Services 17 - AS6663 35173 0.4% 286.0 -- EUROWEBRO Euroweb Romania SA 18 - AS9198 34983 0.4% 152.1 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 19 - AS4755 33910 0.4% 19.5 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 20 - AS6458 31107 0.4% 70.2 -- Telgua TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS14593 50458 0.6% 50458.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS4184 43385 0.5% 21692.5 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS8266 9569 0.1% 9569.0 -- NEXUSTEL Nexus Telecommunications 4 - AS29910 8235 0.1% 8235.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 5 - AS5691 77600 1.0% 5969.2 -- MITRE-AS-5 - The MITRE Corporation 6 - AS38180 5727 0.1% 5727.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 7 - AS43299 4606 0.1% 4606.0 -- TELECONTACT-AS Telecontact Ltd. 8 - AS4557 7873 0.1% 3936.5 -- EP0-BLK-ASNBLOCK-7 - EP.NET, LLC. 9 - AS23082 18900 0.2% 3780.0 -- MPHI - Michigan Public Health Institute 10 - AS11971 21651 0.3% 3093.0 -- PFIZERNET-GROTON - PFIZER INC. 11 - AS30969 23119 0.3% 2311.9 -- TAN-NET TransAfrica Networks 12 - AS23917 2160 0.0% 2160.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 13 - AS24491 1774 0.0% 1774.0 -- WORLDWEB-THAILAND-AS-AP Internet Service Provider Thailand 14 - AS44194 1590 0.0% 1590.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 15 - AS32011 1577 0.0% 1577.0 -- JOHO-NYC - Joho Capital, LLC 16 - AS9747 12268 0.1% 1533.5 -- EZINTERNET-AS-AP EZInternet Pty Ltd 17 - AS25321 1249 0.0% 1249.0 -- G4S-NET GROUP 4 SECURITAS Prague 18 - AS26276 5529 0.1% 1105.8 -- TIMKEN-USA - The Timken Company 19 - AS39843 2156 0.0% 1078.0 -- RATECOM-AS Joint Stock Company "Ratecom" 20 - AS3944 4275 0.1% 1068.8 -- PARTAN-LAB - Partan & Partan TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 77527 0.9% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 221.134.222.0/24 59162 0.7% AS9583 -- SIFY-AS-IN Sify Limited 3 - 194.126.143.0/24 57735 0.7% AS9051 -- IDM Autonomous System 4 - 210.214.151.0/24 55122 0.6% AS9583 -- SIFY-AS-IN Sify Limited 5 - 12.8.7.0/24 50458 0.6% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 6 - 210.210.112.0/24 44322 0.5% AS9583 -- SIFY-AS-IN Sify Limited 7 - 221.135.80.0/24 44047 0.5% AS9583 -- SIFY-AS-IN Sify Limited 8 - 221.135.251.0/24 42813 0.5% AS9583 -- SIFY-AS-IN Sify Limited 9 - 83.228.71.0/24 30651 0.4% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 10 - 221.128.192.0/18 27373 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 11 - 72.50.96.0/20 24360 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 12 - 199.117.144.0/22 21694 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 13 - 129.80.0.0/16 21691 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 14 - 12.18.36.0/24 21381 0.2% AS11971 -- PFIZERNET-GROTON - PFIZER INC. 15 - 196.42.0.0/20 21180 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 16 - 89.38.98.0/23 18104 0.2% AS6663 -- EUROWEBRO Euroweb Romania SA 17 - 86.105.182.0/24 13985 0.2% AS6663 -- EUROWEBRO Euroweb Romania SA 18 - 195.251.5.0/24 12799 0.1% AS5408 -- GR-NET Greek Research & Technology Network, http://www.grnet.gr 19 - 89.4.131.0/24 12704 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 20 - 205.162.132.0/23 12495 0.1% AS23541 -- Scarlet B.V. Details at http://bgpupdates.potaroo.net ------------------------------------ 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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[routing-wg]The Cidr Report
by cidr-report＠potaroo.net 19 Sep '08

19 Sep '08

This report has been generated at Fri Sep 19 21:18:31 2008 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 12-09-08 279371 169113 13-09-08 281264 169195 14-09-08 280983 169796 15-09-08 280912 169979 16-09-08 280891 170665 17-09-08 281142 171487 18-09-08 281677 171559 19-09-08 281956 171946 AS Summary 29399 Number of ASes in routing system 12454 Number of ASes announcing only one prefix 5025 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88271360 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - 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'). --- 19Sep08 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 281831 171930 109901 39.0% All ASes AS4538 5025 886 4139 82.4% ERX-CERNET-BKB China Education and Research Network Center AS6389 4295 351 3944 91.8% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS209 2946 1334 1612 54.7% ASN-QWEST - Qwest AS4755 1728 303 1425 82.5% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS6298 1981 756 1225 61.8% COX-PHX - Cox Communications Inc. AS8151 1736 584 1152 66.4% Uninet S.A. de C.V. AS17488 1384 286 1098 79.3% HATHWAY-NET-AP Hathway IP Over Cable Internet AS4323 1513 480 1033 68.3% TWTC - tw telecom holdings, inc. AS1785 1656 655 1001 60.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS22773 979 65 914 93.4% CCINET-2 - Cox Communications Inc. AS11492 1217 411 806 66.2% CABLEONE - CABLE ONE AS18566 1049 276 773 73.7% COVAD - Covad Communications Co. AS19262 953 201 752 78.9% VZGNI-TRANSIT - Verizon Internet Services Inc. AS2386 1552 906 646 41.6% INS-AS - AT&T Data Communications Services AS9498 678 70 608 89.7% BBIL-AP BHARTI Airtel Ltd. AS6478 1169 587 582 49.8% ATT-INTERNET3 - AT&T WorldNet Services AS18101 754 192 562 74.5% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS3356 984 463 521 52.9% LEVEL3 Level 3 Communications AS4766 902 408 494 54.8% KIXS-AS-KR Korea Telecom AS4808 629 155 474 75.4% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS17676 524 63 461 88.0% GIGAINFRA BB TECHNOLOGY Corp. AS855 595 143 452 76.0% CANET-ASN-4 - Bell Aliant AS4134 842 390 452 53.7% CHINANET-BACKBONE No.31,Jin-rong Street AS7545 584 140 444 76.0% TPG-INTERNET-AP TPG Internet Pty Ltd AS22047 564 127 437 77.5% VTR BANDA ANCHA S.A. AS9443 522 86 436 83.5% INTERNETPRIMUS-AS-AP Primus Telecommunications AS7029 527 93 434 82.4% WINDSTREAM - Windstream Communications Inc AS24560 584 155 429 73.5% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS7018 1418 1000 418 29.5% ATT-INTERNET4 - AT&T WorldNet Services AS4668 683 274 409 59.9% LGNET-AS-KR LG CNS Total 39973 11840 28133 70.4% Top 30 total Possible Bogus Routes 24.75.116.0/22 AS10796 SCRR-10796 - Road Runner HoldCo LLC 24.75.160.0/19 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.142.40.0/21 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.142.160.0/19 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.245.128.0/17 AS11492 CABLEONE - CABLE ONE 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite 63.140.213.0/24 AS22555 UTC - Universal Talkware Corporation 63.143.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.115.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.251.0/24 AS22555 UTC - Universal Talkware Corporation 63.248.0.0/16 AS3356 LEVEL3 Level 3 Communications 64.7.112.0/21 AS6453 GLOBEINTERNET TATA Communications 64.7.120.0/21 AS6453 GLOBEINTERNET TATA Communications 64.64.159.0/24 AS32004 BIG-ASN - Business Information Group, Inc. 64.79.88.0/24 AS26096 LODDEN - Lodden Services 64.79.89.0/24 AS26096 LODDEN - Lodden Services 64.188.0.0/16 AS3356 LEVEL3 Level 3 Communications 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.11.40.0/21 AS6261 VISINET - Visionary Systems, Inc. 66.54.91.0/24 AS30506 BLACKSUN-1 - Blacksun Technologies LLC 66.55.160.0/19 AS29994 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.199.32.0/20 AS10397 WISP-AS - Wispnet, LLC 66.206.32.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.33.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.34.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.35.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.40.0/22 AS174 COGENT Cogent/PSI 66.206.44.0/23 AS174 COGENT Cogent/PSI 66.206.47.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 66.207.32.0/20 AS23011 69.71.192.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 69.80.0.0/17 AS3043 AMPHIB-AS - Amphibian Media Corporation 80.88.0.0/21 AS33774 DJAWEB 80.88.8.0/22 AS33774 DJAWEB 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 91.200.192.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.193.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.194.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.195.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 94.126.88.0/23 AS12695 DINET-AS Digital Network JSC 94.249.128.0/17 AS12586 ASGHOSTNET +------------------------------- 95.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 95.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 119.31.232.0/21 AS38870 121.50.12.0/24 AS38236 121.50.13.0/24 AS38236 121.50.14.0/24 AS38236 121.50.15.0/24 AS38236 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 151.135.0.0/16 AS4768 CLIX-NZ TelstraClear Ltd 159.3.211.0/24 AS2687 ASATTCA AT&T Global Network Services - AP 163.142.0.0/16 AS2500 WIDE-BB WIDE Project 166.63.0.0/16 AS33775 NITEL-AS 172.7.0.0/24 AS28175 172.10.1.0/30 AS18305 POSNET POSDATA Co.,Ltd 188.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 188.0.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 188.0.0.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 192.9.200.0/24 AS3602 AS3602-RTI - Rogers Telecom Inc. 192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.107.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.177.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.141.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.101.45.0/24 AS2905 TICSA-ASN 192.101.46.0/24 AS6503 Avantel, S.A. 192.101.47.0/24 AS6503 Avantel, S.A. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.73.0/24 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.122.212.0/24 AS209 ASN-QWEST - Qwest 192.124.248.0/23 AS680 DFN-IP service G-WiN 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.154.32.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.25.240.0/21 AS3209 Arcor IP-Network 193.25.246.0/24 AS3211 Arcor Data-Network 193.200.114.0/23 AS31530 SERVERCREW-AS Servercrew LTD Autonomes System 193.218.205.224/27 AS41913 COMPUTERLINE Computerline, Schlierbach, Switzerland 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 196.6.108.0/24 AS5713 SAIX-NET 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.201.98.0/24 AS29571 CITelecom-AS 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.144.96.0/20 AS12185 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.131.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DoD Network Information Center 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DoD Network Information Center 199.114.142.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.148.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.156.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.160.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider 202.80.192.0/20 AS2706 HKSUPER-HK-AP Pacific Internet (Hong Kong) Limited 202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited 202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd 203.12.45.0/24 AS4854 NETSPACE-AS-AP Netspace Online Systems 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.114.0/24 AS4802 ASN-IINET iiNet Limited 203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd. 203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.9.217.0/24 AS4323 TWTC - tw telecom holdings, inc. 204.9.218.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.13.140.0/22 AS7270 NET2PHONE - Net2Phone Corp. 204.16.120.0/23 AS12077 204.16.122.0/23 AS12077 204.19.14.0/23 AS577 BACOM - Bell Canada 204.48.58.0/24 AS4323 TWTC - tw telecom holdings, inc. 204.48.60.0/24 AS4323 TWTC - tw telecom 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. 205.144.160.0/20 AS7296 ALCHEMYNET - Alchemy Communications, Inc. 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 206.162.224.0/19 AS23464 ILCSNET - Interlink Computer Services 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.220.240.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.64/26 AS22335 MREN - Metropolitan Research and Education Network 206.220.240.128/25 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.220/32 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.241.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 207.98.209.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.98.223.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.191.128.0/19 AS10887 BPSI-AS - BPSI Internet Services 207.204.168.0/24 AS15150 BELLTECH-AS - BELLWETHER TECHNOLOGY CORPORATION 207.204.222.0/24 AS22773 CCINET-2 - Cox Communications Inc. 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.38.192.0/21 AS14237 BEAMSPEED1 - Beamspeed 208.38.202.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.203.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.204.0/22 AS14237 BEAMSPEED1 - Beamspeed 209.54.93.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.111.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.54.240.0/21 AS10887 BPSI-AS - BPSI Internet Services 209.74.96.0/19 AS10912 INTERNAP-BLK - Internap Network Services Corporation 209.74.96.0/20 AS16776 MOVE-CORP - Move Sales, Inc. 209.74.112.0/20 AS16776 MOVE-CORP - Move Sales, Inc. 209.140.90.0/24 AS14461 NTSL - NET SOLUTIONS 209.140.224.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.234.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.235.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.236.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.237.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.238.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.239.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.16.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.48.0/22 AS14461 NTSL - NET SOLUTIONS 209.145.192.0/18 AS3043 AMPHIB-AS - Amphibian Media Corporation 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 216.37.114.0/23 AS3549 GBLX Global Crossing Ltd. 216.37.120.0/23 AS13377 216.59.0.0/17 AS3356 LEVEL3 Level 3 Communications 216.99.16.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.99.20.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.127.124.0/23 AS2828 XO-AS15 - XO Communications 216.162.96.0/19 AS7393 CYBERCON - CYBERCON, INC. 216.172.198.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.172.199.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.210.86.0/24 AS577 BACOM - Bell Canada 216.229.51.0/24 AS15211 216.240.240.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.241.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.251.207.0/24 AS1239 SPRINTLINK - Sprint 217.78.71.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.72.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.73.0/24 AS12491 IPPLANET-AS IPPlanet 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

1 0

[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 12 Sep '08

12 Sep '08

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 For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 13 Sep, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 268412 Prefixes after maximum aggregation: 129628 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 130442 Total ASes present in the Internet Routing Table: 29220 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 25414 Origin ASes announcing only one prefix: 12361 Transit ASes present in the Internet Routing Table: 3806 Transit-only ASes present in the Internet Routing Table: 87 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 26 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 561 Unregistered ASNs in the Routing Table: 209 Number of 32-bit ASNs allocated by the RIRs: 60 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 767 Number of addresses announced to Internet: 1916473632 Equivalent to 114 /8s, 59 /16s and 17 /24s Percentage of available address space announced: 51.7 Percentage of allocated address space announced: 62.8 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.5 Total number of prefixes smaller than registry allocations: 131675 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 62162 Total APNIC prefixes after maximum aggregation: 22841 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 59072 Unique aggregates announced from the APNIC address blocks: 26366 APNIC Region origin ASes present in the Internet Routing Table: 3375 APNIC Prefixes per ASN: 17.50 APNIC Region origin ASes announcing only one prefix: 908 APNIC Region transit ASes present in the Internet Routing Table: 531 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 376051488 Equivalent to 22 /8s, 106 /16s and 23 /24s Percentage of available APNIC address space announced: 80.1 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 121875 Total ARIN prefixes after maximum aggregation: 64530 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 91148 Unique aggregates announced from the ARIN address blocks: 34980 ARIN Region origin ASes present in the Internet Routing Table: 12439 ARIN Prefixes per ASN: 7.33 ARIN Region origin ASes announcing only one prefix: 4806 ARIN Region transit ASes present in the Internet Routing Table: 1193 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 361286880 Equivalent to 21 /8s, 136 /16s and 204 /24s Percentage of available ARIN address space announced: 74.3 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 58112 Total RIPE prefixes after maximum aggregation: 35166 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 53245 Unique aggregates announced from the RIPE address blocks: 35726 RIPE Region origin ASes present in the Internet Routing Table: 11863 RIPE Prefixes per ASN: 4.49 RIPE Region origin ASes announcing only one prefix: 6234 RIPE Region transit ASes present in the Internet Routing Table: 1805 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 371846720 Equivalent to 22 /8s, 41 /16s and 238 /24s Percentage of available RIPE address space announced: 85.2 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-48127 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 21616 Total LACNIC prefixes after maximum aggregation: 5369 LACNIC Deaggregation factor: 4.03 Prefixes being announced from the LACNIC address blocks: 19815 Unique aggregates announced from the LACNIC address blocks: 10925 LACNIC Region origin ASes present in the Internet Routing Table: 997 LACNIC Prefixes per ASN: 19.87 LACNIC Region origin ASes announcing only one prefix: 330 LACNIC Region transit ASes present in the Internet Routing Table: 171 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 55251968 Equivalent to 3 /8s, 75 /16s and 20 /24s Percentage of available LACNIC address space announced: 54.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4086 Total AfriNIC prefixes after maximum aggregation: 1260 AfriNIC Deaggregation factor: 3.24 Prefixes being announced from the AfriNIC address blocks: 4403 Unique aggregates announced from the AfriNIC address blocks: 2012 AfriNIC Region origin ASes present in the Internet Routing Table: 256 AfriNIC Prefixes per ASN: 17.20 AfriNIC Region origin ASes announcing only one prefix: 83 AfriNIC Region transit ASes present in the Internet Routing Table: 53 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12717312 Equivalent to 0 /8s, 194 /16s and 13 /24s Percentage of available AfriNIC address space announced: 37.9 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1718 538 181 Videsh Sanchar Nigam Ltd. Aut 17488 1378 93 98 Hathway IP Over Cable Interne 9583 1146 89 487 Sify Limited 4766 876 6408 360 Korea Telecom (KIX) 4134 841 13651 345 CHINANET-BACKBONE 23577 818 34 693 Korea Telecom (ATM-MPLS) 18101 766 152 51 Reliance Infocom Ltd Internet 4780 714 353 61 Digital United Inc. 9498 676 291 54 BHARTI BT INTERNET LTD. 4808 629 1156 138 CNCGROUP IP network: China169 Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4298 3416 339 bellsouth.net, inc. 209 2918 3873 620 Qwest 6298 1965 314 757 Cox Communicatons 20115 1677 1414 719 Charter Communications 1785 1653 710 156 AppliedTheory Corporation 2386 1555 691 895 AT&T Data Communications Serv 4323 1520 1073 375 Time Warner Telecom 7018 1405 5801 974 AT&T WorldNet Services 11492 1210 151 19 Cable One 6478 1155 240 185 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 420 1777 377 TDC Tele Danmark 3301 334 1460 305 TeliaNet Sweden 8452 328 188 11 TEDATA 3215 327 2756 106 France Telecom Transpac 3320 326 7063 274 Deutsche Telekom AG 30890 323 87 176 SC Kappa Invexim SRL 8866 317 77 21 Bulgarian Telecommunication C 5462 296 794 27 Telewest Broadband 8551 286 270 37 Bezeq International 680 275 2047 265 DFN-IP service G-WiN Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1604 2607 222 UniNet S.A. de C.V. 11830 667 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 7303 486 239 67 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 10620 424 104 62 TVCABLE BOGOTA 6471 420 85 48 ENTEL CHILE S.A. 11172 409 118 72 Servicios Alestra S.A de C.V 28573 350 442 29 NET Servicos de Comunicao S.A 14117 345 23 9 Telefonica del Sur S.A. Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 512 67 32 LINKdotNET AS number 20858 403 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 231 214 138 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 555 68 Telkom SA Ltd 33776 116 6 3 Starcomms Nigeria Limited 29571 107 13 8 Ci Telecom Autonomous system Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4298 3416 339 bellsouth.net, inc. 209 2918 3873 620 Qwest 6298 1965 314 757 Cox Communicatons 4755 1718 538 181 Videsh Sanchar Nigam Ltd. Aut 20115 1677 1414 719 Charter Communications 1785 1653 710 156 AppliedTheory Corporation 8151 1604 2607 222 UniNet S.A. de C.V. 2386 1555 691 895 AT&T Data Communications Serv 4323 1520 1073 375 Time Warner Telecom 7018 1405 5801 974 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2918 2298 Qwest 4755 1718 1537 Videsh Sanchar Nigam Ltd. Aut 1785 1653 1497 AppliedTheory Corporation 8151 1604 1382 UniNet S.A. de C.V. 17488 1378 1280 Hathway IP Over Cable Interne 6298 1965 1208 Cox Communicatons 11492 1210 1191 Cable One 4323 1520 1145 Time Warner Telecom 18566 1048 1038 Covad Communications 6478 1155 970 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.75.116.0/22 10796 ServiceCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio 63.143.71.0/24 701 UUNET Technologies, Inc. 63.143.115.0/24 701 UUNET Technologies, Inc. Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:17 /11:45 /12:146 /13:294 /14:525 /15:1069 /16:10073 /17:4381 /18:7696 /19:16085 /20:19021 /21:18546 /22:23244 /23:24388 /24:140269 /25:784 /26:948 /27:747 /28:89 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2851 4298 bellsouth.net, inc. 6298 1940 1965 Cox Communicatons 209 1684 2918 Qwest 2386 1232 1555 AT&T Data Communications Serv 11492 1191 1210 Cable One 17488 1185 1378 Hathway IP Over Cable Interne 1785 1122 1653 AppliedTheory Corporation 4755 1053 1718 Videsh Sanchar Nigam Ltd. Aut 6478 1048 1155 AT&T Worldnet Services 18566 1029 1048 Covad Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:139 12:2140 13:2 15:21 16:3 17:5 18:13 20:35 24:1089 32:59 38:493 40:92 41:725 43:1 44:2 47:12 52:3 55:3 56:3 57:27 58:525 59:517 60:451 61:969 62:1213 63:2039 64:3193 65:2375 66:3454 67:1228 68:774 69:2274 70:844 71:164 72:1990 73:7 74:1150 75:164 76:265 77:793 78:824 79:265 80:947 81:833 82:580 83:366 84:575 85:1021 86:400 87:714 88:335 89:1360 90:21 91:1480 92:262 93:819 94:140 96:65 97:77 98:315 99:8 114:97 115:44 116:1015 117:362 118:243 119:488 120:83 121:591 122:845 123:438 124:853 125:1194 128:356 129:201 130:134 131:411 132:70 133:9 134:178 135:32 136:223 137:93 138:140 139:81 140:505 141:102 142:408 143:306 144:363 145:51 146:370 147:157 148:517 149:207 150:128 151:182 152:146 153:136 154:10 155:283 156:175 157:299 158:162 159:302 160:274 161:139 162:253 163:155 164:516 165:494 166:364 167:331 168:632 169:143 170:438 171:33 172:10 173:33 186:1 187:1 188:1 189:610 190:2210 192:5707 193:4145 194:3252 195:2573 196:996 198:3725 199:3294 200:5592 201:1528 202:7841 203:8071 204:3931 205:2120 206:2354 207:2738 208:3577 209:3421 210:2600 211:1093 212:1427 213:1625 214:179 215:50 216:4333 217:1213 218:346 219:437 220:1060 221:426 222:316 End of report

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[routing-wg]BGP Update Report
by cidr-report＠potaroo.net 12 Sep '08

12 Sep '08

BGP Update Report Interval: 11-Aug-08 -to- 11-Sep-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9583 271701 3.4% 208.5 -- SIFY-AS-IN Sify Limited 2 - AS1803 133578 1.7% 100.8 -- ICMNET-5 - Sprint 3 - AS4538 92290 1.2% 18.4 -- ERX-CERNET-BKB China Education and Research Network Center 4 - AS8151 81876 1.0% 35.9 -- Uninet S.A. de C.V. 5 - AS5691 76580 1.0% 5890.8 -- MITRE-AS-5 - The MITRE Corporation 6 - AS9051 66326 0.8% 419.8 -- IDM Autonomous System 7 - AS6389 61608 0.8% 14.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 8 - AS17488 44840 0.6% 30.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 9 - AS10396 44488 0.6% 644.8 -- COQUI-NET - DATACOM CARIBE, INC. 10 - AS14593 41447 0.5% 41447.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 11 - AS6663 40207 0.5% 326.9 -- EUROWEBRO Euroweb Romania SA 12 - AS20115 37632 0.5% 22.1 -- CHARTER-NET-HKY-NC - Charter Communications 13 - AS8866 36541 0.5% 113.5 -- BTC-AS Bulgarian Telecommunication Company Plc. 14 - AS209 36253 0.5% 7.5 -- ASN-QWEST - Qwest 15 - AS6298 36103 0.5% 17.4 -- COX-PHX - Cox Communications Inc. 16 - AS5056 35265 0.4% 306.7 -- INS-NET-2 - Iowa Network Services 17 - AS18231 35043 0.4% 141.9 -- EXATT-AS-AP IOL NETCOM LTD 18 - AS9198 31683 0.4% 137.8 -- KAZTELECOM-AS Kazakhtelecom Corporate Sales Administration 19 - AS4755 30182 0.4% 17.4 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 20 - AS7018 30023 0.4% 20.4 -- ATT-INTERNET4 - AT&T WorldNet Services TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS14593 41447 0.5% 41447.0 -- BRAND-INSTITUTE - Brand Instiute, Inc. 2 - AS4184 26397 0.3% 13198.5 -- STORTEK-WHQ - Storage Technology Corporation 3 - AS29910 8451 0.1% 8451.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 4 - AS5691 76580 1.0% 5890.8 -- MITRE-AS-5 - The MITRE Corporation 5 - AS8266 5031 0.1% 5031.0 -- NEXUSTEL Nexus Telecommunications 6 - AS43299 4988 0.1% 4988.0 -- TELECONTACT-AS Telecontact Ltd. 7 - AS38180 4105 0.1% 4105.0 -- ETPI-IDS-JOLLIBEE-AS-AP 6/Fth floor JOLLIBEE PLAZA, Emerald Ave. Ortigas Center Pasig City. 8 - AS28194 18995 0.2% 3799.0 -- 9 - AS23082 18933 0.2% 3786.6 -- MPHI - Michigan Public Health Institute 10 - AS30969 25965 0.3% 2596.5 -- TAN-NET TransAfrica Networks 11 - AS23917 1958 0.0% 1958.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 12 - AS24491 1769 0.0% 1769.0 -- WORLDWEB-THAILAND-AS-AP Internet Service Provider Thailand 13 - AS44194 1616 0.0% 1616.0 -- FREIFUNK-BERLIN-AS Freifunk Berlin 14 - AS32011 1555 0.0% 1555.0 -- JOHO-NYC - Joho Capital, LLC 15 - AS29225 1462 0.0% 1462.0 -- TAIF-TELCOM-AS JSC TAIF-TELCOM 16 - AS9747 11643 0.1% 1455.4 -- EZINTERNET-AS-AP EZInternet Pty Ltd 17 - AS25321 1248 0.0% 1248.0 -- G4S-NET GROUP 4 SECURITAS Prague 18 - AS26276 5797 0.1% 1159.4 -- TIMKEN-USA - The Timken Company 19 - AS39794 1113 0.0% 1113.0 -- EL-KOZIENICE-AS Elektrownia Kozienice S.A. 20 - AS3944 4188 0.1% 1047.0 -- PARTAN-LAB - Partan & Partan TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 192.12.120.0/24 76442 0.9% AS5691 -- MITRE-AS-5 - The MITRE Corporation 2 - 194.126.143.0/24 61962 0.7% AS9051 -- IDM Autonomous System 3 - 221.134.222.0/24 59613 0.7% AS9583 -- SIFY-AS-IN Sify Limited 4 - 210.214.151.0/24 41763 0.5% AS9583 -- SIFY-AS-IN Sify Limited 5 - 12.8.7.0/24 41447 0.5% AS14593 -- BRAND-INSTITUTE - Brand Instiute, Inc. 6 - 210.210.112.0/24 34493 0.4% AS9583 -- SIFY-AS-IN Sify Limited 7 - 221.135.80.0/24 34127 0.4% AS9583 -- SIFY-AS-IN Sify Limited 8 - 221.135.251.0/24 31357 0.4% AS9583 -- SIFY-AS-IN Sify Limited 9 - 83.228.71.0/24 28703 0.3% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 10 - 221.128.192.0/18 26630 0.3% AS18231 -- EXATT-AS-AP IOL NETCOM LTD 11 - 72.50.96.0/20 24278 0.3% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 12 - 89.38.98.0/23 23111 0.3% AS6663 -- EUROWEBRO Euroweb Romania SA 13 - 196.42.0.0/20 19075 0.2% AS10396 -- COQUI-NET - DATACOM CARIBE, INC. 14 - 86.105.182.0/24 13985 0.2% AS6663 -- EUROWEBRO Euroweb Romania SA 15 - 195.251.5.0/24 13319 0.2% AS5408 -- GR-NET Greek Research & Technology Network, http://www.grnet.gr 16 - 199.117.144.0/22 13201 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 17 - 129.80.0.0/16 13196 0.2% AS4184 -- STORTEK-WHQ - Storage Technology Corporation 18 - 196.27.104.0/21 12621 0.1% AS30969 -- TAN-NET TransAfrica Networks 19 - 89.4.131.0/24 12567 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 20 - 196.27.108.0/22 12556 0.1% AS30969 -- TAN-NET TransAfrica Networks Details at http://bgpupdates.potaroo.net ------------------------------------ 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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[routing-wg]The Cidr Report
by cidr-report＠potaroo.net 12 Sep '08

12 Sep '08

This report has been generated at Fri Sep 12 21:18:50 2008 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 05-09-08 279838 172577 06-09-08 280450 167662 07-09-08 280494 171189 08-09-08 280576 171196 09-09-08 280020 170156 10-09-08 280859 170396 11-09-08 281136 169348 12-09-08 279371 168974 AS Summary 29348 Number of ASes in routing system 12435 Number of ASes announcing only one prefix 5028 Largest number of prefixes announced by an AS AS4538 : ERX-CERNET-BKB China Education and Research Network Center 88406528 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - 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'). --- 12Sep08 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 281127 168963 112164 39.9% All ASes AS4538 5028 885 4143 82.4% ERX-CERNET-BKB China Education and Research Network Center AS6389 4301 351 3950 91.8% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS209 2932 647 2285 77.9% ASN-QWEST - Qwest AS4755 1726 225 1501 87.0% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS1785 1653 434 1219 73.7% AS-PAETEC-NET - PaeTec Communications, Inc. AS6298 1966 758 1208 61.4% COX-PHX - Cox Communications Inc. AS17488 1378 283 1095 79.5% HATHWAY-NET-AP Hathway IP Over Cable Internet AS4323 1516 460 1056 69.7% TWTC - tw telecom holdings, inc. AS8151 1601 560 1041 65.0% Uninet S.A. de C.V. AS22773 975 65 910 93.3% CCINET-2 - Cox Communications Inc. AS18566 1048 275 773 73.8% COVAD - Covad Communications Co. AS19262 948 191 757 79.9% VZGNI-TRANSIT - Verizon Internet Services Inc. AS11492 1210 472 738 61.0% CABLEONE - CABLE ONE AS2386 1554 908 646 41.6% INS-AS - AT&T Data Communications Services AS18101 764 135 629 82.3% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS9498 677 70 607 89.7% BBIL-AP BHARTI Airtel Ltd. AS6478 1155 579 576 49.9% ATT-INTERNET3 - AT&T WorldNet Services AS3356 975 436 539 55.3% LEVEL3 Level 3 Communications AS4766 903 401 502 55.6% KIXS-AS-KR Korea Telecom AS4808 629 155 474 75.4% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS855 594 127 467 78.6% CANET-ASN-4 - Bell Aliant AS17676 524 63 461 88.0% GIGAINFRA BB TECHNOLOGY Corp. AS4134 841 387 454 54.0% CHINANET-BACKBONE No.31,Jin-rong Street AS7011 918 475 443 48.3% FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. AS22047 564 127 437 77.5% VTR BANDA ANCHA S.A. AS9443 522 86 436 83.5% INTERNETPRIMUS-AS-AP Primus Telecommunications AS7029 527 93 434 82.4% WINDSTREAM - Windstream Communications Inc AS7018 1426 994 432 30.3% ATT-INTERNET4 - AT&T WorldNet Services AS24560 582 154 428 73.5% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS4668 683 274 409 59.9% LGNET-AS-KR LG CNS Total 40120 11070 29050 72.4% Top 30 total Possible Bogus Routes 24.75.116.0/22 AS10796 SCRR-10796 - Road Runner HoldCo LLC 24.75.160.0/19 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.142.40.0/21 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.142.160.0/19 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.245.128.0/17 AS11492 CABLEONE - CABLE ONE 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite 63.140.213.0/24 AS22555 UTC - Universal Talkware Corporation 63.143.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.115.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.251.0/24 AS22555 UTC - Universal Talkware Corporation 63.248.0.0/16 AS3356 LEVEL3 Level 3 Communications 64.7.112.0/21 AS6453 GLOBEINTERNET TATA Communications 64.7.120.0/21 AS6453 GLOBEINTERNET TATA Communications 64.64.159.0/24 AS32004 BIG-ASN - Business Information Group, Inc. 64.79.88.0/24 AS26096 LODDEN - Lodden Services 64.79.89.0/24 AS26096 LODDEN - Lodden Services 64.188.0.0/16 AS3356 LEVEL3 Level 3 Communications 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.11.40.0/21 AS6261 VISINET - Visionary Systems, Inc. 66.54.91.0/24 AS30506 BLACKSUN-1 - Blacksun Technologies LLC 66.55.160.0/19 AS29994 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.199.32.0/20 AS10397 WISP-AS - Wispnet, LLC 66.206.32.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.33.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.34.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.35.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.40.0/22 AS174 COGENT Cogent/PSI 66.206.44.0/23 AS174 COGENT Cogent/PSI 66.206.47.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 66.207.32.0/20 AS23011 69.71.192.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 69.80.0.0/17 AS3043 AMPHIB-AS - Amphibian Media Corporation 80.88.0.0/21 AS33774 DJAWEB 80.88.8.0/22 AS33774 DJAWEB 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 91.200.192.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.193.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.194.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.200.195.128/25 AS44045 DIGIEF-AS Didjief internation kulinari koncept LLC 91.207.4.0/22 AS47142 STEEPHOST-AS SteepHost DC-UA-SteepHost.COM Datacentre Allocation 91.207.8.0/23 AS47142 STEEPHOST-AS SteepHost DC-UA-SteepHost.COM Datacentre Allocation 91.208.199.0/24 AS35185 KUVEYTTURK-ASN Kuveyt Turk EFK A.S. 91.208.202.0/24 AS42652 INTRAPARK Intrapark GmbH 94.103.20.0/22 AS16243 VIRTU-AS Virtu Secure Webservices B.V. 94.125.240.0/21 AS41822 TNGS-NORTH-AS JSC Tyumenneftegazsvyaz 95.165.192.0/19 AS12479 UNI2-AS Uni2 Autonomous System 95.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 95.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 121.50.12.0/24 AS38236 121.50.13.0/24 AS38236 121.50.14.0/24 AS38236 121.50.15.0/24 AS38236 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 151.135.0.0/16 AS4768 CLIX-NZ TelstraClear Ltd 159.3.211.0/24 AS2687 ASATTCA AT&T Global Network Services - AP 163.142.0.0/16 AS2500 WIDE-BB WIDE Project 166.63.0.0/16 AS33775 NITEL-AS 172.7.0.0/24 AS28175 172.10.1.0/30 AS18305 POSNET POSDATA Co.,Ltd 188.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 188.0.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 188.0.0.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 192.9.200.0/24 AS3602 AS3602-RTI - Rogers Telecom Inc. 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.107.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.177.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.141.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.101.45.0/24 AS2905 TICSA-ASN 192.101.46.0/24 AS6503 Avantel, S.A. 192.101.47.0/24 AS6503 Avantel, S.A. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.73.0/24 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.122.212.0/24 AS209 ASN-QWEST - Qwest 192.124.248.0/23 AS680 DFN-IP service G-WiN 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.154.32.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.25.240.0/21 AS3209 Arcor IP-Network 193.25.246.0/24 AS3211 Arcor Data-Network 193.200.114.0/23 AS31530 SERVERCREW-AS Servercrew LTD Autonomes System 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 195.222.124.0/22 AS12714 TI-AS NetByNet Holding 196.6.108.0/24 AS5713 SAIX-NET 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.201.98.0/24 AS29571 CITelecom-AS 196.216.132.0/24 AS9207 TAIDE-KE-NAIROBI Taide - Kenya POP 196.216.134.0/24 AS9207 TAIDE-KE-NAIROBI Taide - Kenya POP 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.144.96.0/20 AS12185 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.131.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DoD Network Information Center 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DoD Network Information Center 199.114.142.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.148.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.156.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.160.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider 202.80.192.0/20 AS2706 HKSUPER-HK-AP Pacific Internet (Hong Kong) Limited 202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited 202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre, 202.176.228.0/24 AS17988 SINOSAT-AS-AP SINOSAT (HONG KONG) LIMITED 202.176.232.0/24 AS17988 SINOSAT-AS-AP SINOSAT (HONG KONG) LIMITED 202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd 203.12.45.0/24 AS4854 NETSPACE-AS-AP Netspace Online Systems 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.114.0/24 AS4802 ASN-IINET iiNet Limited 203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd. 203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.9.217.0/24 AS4323 TWTC - tw telecom holdings, inc. 204.9.218.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.13.140.0/22 AS7270 NET2PHONE - Net2Phone Corp. 204.16.120.0/23 AS12077 204.16.122.0/23 AS12077 204.19.14.0/23 AS577 BACOM - Bell Canada 204.48.58.0/24 AS4323 TWTC - tw telecom holdings, inc. 204.48.60.0/24 AS4323 TWTC - tw telecom 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. 205.144.160.0/20 AS7296 ALCHEMYNET - Alchemy Communications, Inc. 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 206.162.224.0/19 AS23464 ILCSNET - Interlink Computer Services 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.220.240.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.64/26 AS22335 MREN - Metropolitan Research and Education Network 206.220.240.128/25 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.220/32 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.241.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 207.98.209.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.98.223.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.191.128.0/19 AS10887 BPSI-AS - BPSI Internet Services 207.204.168.0/24 AS15150 BELLTECH-AS - BELLWETHER TECHNOLOGY CORPORATION 207.204.222.0/24 AS22773 CCINET-2 - Cox Communications Inc. 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.38.192.0/21 AS14237 BEAMSPEED1 - Beamspeed 208.38.202.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.203.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.204.0/22 AS14237 BEAMSPEED1 - Beamspeed 209.54.93.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.111.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.54.240.0/21 AS10887 BPSI-AS - BPSI Internet Services 209.74.96.0/19 AS10912 INTERNAP-BLK - Internap Network Services Corporation 209.74.96.0/20 AS16776 MOVE-CORP - Move Sales, Inc. 209.74.112.0/20 AS16776 MOVE-CORP - Move Sales, Inc. 209.140.90.0/24 AS14461 NTSL - NET SOLUTIONS 209.140.224.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.234.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.235.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.236.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.237.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.238.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.239.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.16.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.48.0/22 AS14461 NTSL - NET SOLUTIONS 209.145.192.0/18 AS3043 AMPHIB-AS - Amphibian Media Corporation 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 216.37.114.0/23 AS3549 GBLX Global Crossing Ltd. 216.37.120.0/23 AS13377 216.59.0.0/17 AS3356 LEVEL3 Level 3 Communications 216.99.16.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.99.20.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.127.124.0/23 AS2828 XO-AS15 - XO Communications 216.162.96.0/19 AS7393 CYBERCON - CYBERCON, INC. 216.172.198.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.172.199.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.210.86.0/24 AS577 BACOM - Bell Canada 216.229.51.0/24 AS15211 216.240.240.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.241.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.251.207.0/24 AS1239 SPRINTLINK - Sprint 217.78.71.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.72.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.73.0/24 AS12491 IPPLANET-AS IPPlanet 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

1 0

[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 05 Sep '08

05 Sep '08

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 For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 06 Sep, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 267551 Prefixes after maximum aggregation: 129558 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 130250 Total ASes present in the Internet Routing Table: 29147 Prefixes per ASN: 9.18 Origin-only ASes present in the Internet Routing Table: 25360 Origin ASes announcing only one prefix: 12310 Transit ASes present in the Internet Routing Table: 3787 Transit-only ASes present in the Internet Routing Table: 83 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 26 Max AS path prepend of ASN ( 3816) 15 Prefixes from unregistered ASNs in the Routing Table: 568 Unregistered ASNs in the Routing Table: 211 Number of 32-bit ASNs allocated by the RIRs: 59 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 761 Number of addresses announced to Internet: 1897392032 Equivalent to 113 /8s, 23 /16s and 231 /24s Percentage of available address space announced: 51.2 Percentage of allocated address space announced: 62.2 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.4 Total number of prefixes smaller than registry allocations: 131274 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 61606 Total APNIC prefixes after maximum aggregation: 22776 APNIC Deaggregation factor: 2.70 Prefixes being announced from the APNIC address blocks: 58521 Unique aggregates announced from the APNIC address blocks: 26310 APNIC Region origin ASes present in the Internet Routing Table: 3366 APNIC Prefixes per ASN: 17.39 APNIC Region origin ASes announcing only one prefix: 900 APNIC Region transit ASes present in the Internet Routing Table: 526 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 375010592 Equivalent to 22 /8s, 90 /16s and 53 /24s Percentage of available APNIC address space announced: 79.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 122144 Total ARIN prefixes after maximum aggregation: 64686 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 91338 Unique aggregates announced from the ARIN address blocks: 35015 ARIN Region origin ASes present in the Internet Routing Table: 12424 ARIN Prefixes per ASN: 7.35 ARIN Region origin ASes announcing only one prefix: 4790 ARIN Region transit ASes present in the Internet Routing Table: 1186 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 360988896 Equivalent to 21 /8s, 132 /16s and 64 /24s Percentage of available ARIN address space announced: 74.2 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 57792 Total RIPE prefixes after maximum aggregation: 35026 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 52942 Unique aggregates announced from the RIPE address blocks: 35549 RIPE Region origin ASes present in the Internet Routing Table: 11818 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 6203 RIPE Region transit ASes present in the Internet Routing Table: 1806 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 371067328 Equivalent to 22 /8s, 30 /16s and 9 /24s Percentage of available RIPE address space announced: 85.1 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-48127 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 21370 Total LACNIC prefixes after maximum aggregation: 5344 LACNIC Deaggregation factor: 4.00 Prefixes being announced from the LACNIC address blocks: 19602 Unique aggregates announced from the LACNIC address blocks: 10867 LACNIC Region origin ASes present in the Internet Routing Table: 992 LACNIC Prefixes per ASN: 19.76 LACNIC Region origin ASes announcing only one prefix: 327 LACNIC Region transit ASes present in the Internet Routing Table: 166 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 55077376 Equivalent to 3 /8s, 72 /16s and 106 /24s Percentage of available LACNIC address space announced: 54.7 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4072 Total AfriNIC prefixes after maximum aggregation: 1255 AfriNIC Deaggregation factor: 3.24 Prefixes being announced from the AfriNIC address blocks: 4387 Unique aggregates announced from the AfriNIC address blocks: 1967 AfriNIC Region origin ASes present in the Internet Routing Table: 258 AfriNIC Prefixes per ASN: 17.00 AfriNIC Region origin ASes announcing only one prefix: 90 AfriNIC Region transit ASes present in the Internet Routing Table: 55 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 12672768 Equivalent to 0 /8s, 193 /16s and 95 /24s Percentage of available AfriNIC address space announced: 37.8 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1715 538 181 Videsh Sanchar Nigam Ltd. Aut 17488 1372 90 102 Hathway IP Over Cable Interne 9583 1147 89 495 Sify Limited 4766 873 6407 357 Korea Telecom (KIX) 4134 841 13651 345 CHINANET-BACKBONE 23577 820 35 695 Korea Telecom (ATM-MPLS) 18101 715 167 29 Reliance Infocom Ltd Internet 4780 714 353 61 Digital United Inc. 9498 677 291 52 BHARTI BT INTERNET LTD. 4808 629 1156 138 CNCGROUP IP network: China169 Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4292 3416 337 bellsouth.net, inc. 209 2904 3873 618 Qwest 6298 1973 315 759 Cox Communicatons 1785 1651 710 156 AppliedTheory Corporation 20115 1568 1260 703 Charter Communications 2386 1560 691 899 AT&T Data Communications Serv 4323 1506 1073 375 Time Warner Telecom 7018 1399 5782 975 AT&T WorldNet Services 11492 1211 151 18 Cable One 6478 1140 239 181 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 416 1776 373 TDC Tele Danmark 3301 334 1444 305 TeliaNet Sweden 8452 328 188 11 TEDATA 3215 327 2756 106 France Telecom Transpac 3320 326 7063 274 Deutsche Telekom AG 30890 322 87 176 SC Kappa Invexim SRL 8866 316 77 21 Bulgarian Telecommunication C 5462 296 794 27 Telewest Broadband 8551 287 270 37 Bezeq International 680 275 2047 265 DFN-IP service G-WiN Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1594 2608 228 UniNet S.A. de C.V. 11830 664 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 7303 485 239 67 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 10620 422 103 62 TVCABLE BOGOTA 6471 421 85 48 ENTEL CHILE S.A. 11172 408 118 71 Servicios Alestra S.A de C.V 14117 345 23 9 Telefonica del Sur S.A. 28573 337 441 29 NET Servicos de Comunicao S.A Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 515 65 36 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 265 855 223 The Internet Solution 2018 233 214 138 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 33776 119 6 3 Starcomms Nigeria Limited 5713 118 555 68 Telkom SA Ltd 29571 107 13 8 Ci Telecom Autonomous system Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4292 3416 337 bellsouth.net, inc. 209 2904 3873 618 Qwest 6298 1973 315 759 Cox Communicatons 4755 1715 538 181 Videsh Sanchar Nigam Ltd. Aut 1785 1651 710 156 AppliedTheory Corporation 8151 1594 2608 228 UniNet S.A. de C.V. 20115 1568 1260 703 Charter Communications 2386 1560 691 899 AT&T Data Communications Serv 4323 1506 1073 375 Time Warner Telecom 7018 1399 5782 975 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2904 2286 Qwest 4755 1715 1534 Videsh Sanchar Nigam Ltd. Aut 1785 1651 1495 AppliedTheory Corporation 8151 1594 1366 UniNet S.A. de C.V. 17488 1372 1270 Hathway IP Over Cable Interne 6298 1973 1214 Cox Communicatons 11492 1211 1193 Cable One 4323 1506 1131 Time Warner Telecom 18566 1048 1038 Covad Communications 6478 1140 959 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.75.116.0/22 10796 ServiceCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio 63.143.71.0/24 701 UUNET Technologies, Inc. 63.143.115.0/24 701 UUNET Technologies, Inc. Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:9 /10:17 /11:45 /12:146 /13:293 /14:527 /15:1060 /16:10060 /17:4380 /18:7636 /19:16082 /20:18794 /21:18490 /22:23203 /23:24269 /24:139965 /25:772 /26:940 /27:739 /28:89 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2851 4292 bellsouth.net, inc. 6298 1948 1973 Cox Communicatons 209 1671 2904 Qwest 2386 1238 1560 AT&T Data Communications Serv 11492 1192 1211 Cable One 17488 1180 1372 Hathway IP Over Cable Interne 1785 1121 1651 AppliedTheory Corporation 4755 1050 1715 Videsh Sanchar Nigam Ltd. Aut 6478 1033 1140 AT&T Worldnet Services 18566 1029 1048 Covad Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:137 12:2147 13:2 15:22 16:3 17:5 18:13 20:35 24:1087 32:59 38:490 40:92 41:721 43:1 44:2 47:12 52:3 55:3 56:3 57:26 58:526 59:518 60:453 61:961 62:1223 63:2046 64:3210 65:2358 66:3458 67:1230 68:774 69:2297 70:845 71:169 72:2028 73:6 74:1135 75:170 76:274 77:791 78:799 79:318 80:949 81:833 82:573 83:369 84:574 85:972 86:399 87:714 88:337 89:1325 90:20 91:1446 92:254 93:817 94:132 96:63 97:68 98:323 99:7 114:96 115:42 116:1018 117:355 118:237 119:483 120:84 121:587 122:837 123:400 124:853 125:1193 128:356 129:201 130:134 131:410 132:70 133:9 134:178 135:34 136:223 137:93 138:141 139:93 140:508 141:102 142:407 143:289 144:362 145:51 146:371 147:157 148:514 149:206 150:128 151:181 152:145 153:136 154:10 155:284 156:175 157:297 158:163 159:301 160:273 161:139 162:254 163:155 164:516 165:497 166:367 167:331 168:629 169:143 170:431 171:33 172:10 173:33 188:1 189:593 190:2099 192:5791 193:4142 194:3250 195:2579 196:995 198:3735 199:3307 200:5588 201:1525 202:7681 203:8069 204:3935 205:2144 206:2350 207:2738 208:3536 209:3425 210:2602 211:1089 212:1420 213:1621 214:178 215:50 216:4365 217:1212 218:347 219:436 220:1061 221:426 222:315 End of report

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