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@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 26 Apr, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 254062 Prefixes after maximum aggregation: 126996 Deaggregation factor: 2.00 Unique aggregates announced to Internet: 123674 Total ASes present in the Internet Routing Table: 28040 Prefixes per ASN: 9.06 Origin-only ASes present in the Internet Routing Table: 24422 Origin ASes announcing only one prefix: 11383 Transit ASes present in the Internet Routing Table: 3618 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 19 Max AS path prepend of ASN (39375) 13 Prefixes from unregistered ASNs in the Routing Table: 25254 Unregistered ASNs in the Routing Table: 1883 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 10 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 794 Number of addresses announced to Internet: 1864785952 Equivalent to 111 /8s, 38 /16s and 96 /24s Percentage of available address space announced: 50.3 Percentage of allocated address space announced: 61.8 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.6 Total number of prefixes smaller than registry allocations: 121945 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42902 Total APNIC prefixes after maximum aggregation: 13600 APNIC Deaggregation factor: 3.15 Prefixes being announced from the APNIC address blocks: 55266 Unique aggregates announced from the APNIC address blocks: 23976 APNIC Region origin ASes present in the Internet Routing Table: 1927 APNIC Prefixes per ASN: 28.68 APNIC Region origin ASes announcing only one prefix: 550 APNIC Region transit ASes present in the Internet Routing Table: 353 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 346601824 Equivalent to 20 /8s, 168 /16s and 185 /24s Percentage of available APNIC address space announced: 79.5 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, 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: 107608 Total ARIN prefixes after maximum aggregation: 59199 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 86454 Unique aggregates announced from the ARIN address blocks: 34200 ARIN Region origin ASes present in the Internet Routing Table: 11763 ARIN Prefixes per ASN: 7.35 ARIN Region origin ASes announcing only one prefix: 4592 ARIN Region transit ASes present in the Internet Routing Table: 1045 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 358940416 Equivalent to 21 /8s, 100 /16s and 255 /24s Percentage of available ARIN address space announced: 73.8 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: 54765 Total RIPE prefixes after maximum aggregation: 33522 RIPE Deaggregation factor: 1.63 Prefixes being announced from the RIPE address blocks: 49997 Unique aggregates announced from the RIPE address blocks: 33450 RIPE Region origin ASes present in the Internet Routing Table: 11258 RIPE Prefixes per ASN: 4.44 RIPE Region origin ASes announcing only one prefix: 5885 RIPE Region transit ASes present in the Internet Routing Table: 1723 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 355108864 Equivalent to 21 /8s, 42 /16s and 136 /24s Percentage of available RIPE address space announced: 81.4 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 - 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: 19746 Total LACNIC prefixes after maximum aggregation: 4938 LACNIC Deaggregation factor: 4.00 Prefixes being announced from the LACNIC address blocks: 18144 Unique aggregates announced from the LACNIC address blocks: 9833 LACNIC Region origin ASes present in the Internet Routing Table: 894 LACNIC Prefixes per ASN: 20.30 LACNIC Region origin ASes announcing only one prefix: 277 LACNIC Region transit ASes present in the Internet Routing Table: 155 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 50827008 Equivalent to 3 /8s, 7 /16s and 143 /24s Percentage of available LACNIC address space announced: 50.5 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: 3786 Total AfriNIC prefixes after maximum aggregation: 1198 AfriNIC Deaggregation factor: 3.16 Prefixes being announced from the AfriNIC address blocks: 4141 Unique aggregates announced from the AfriNIC address blocks: 1840 AfriNIC Region origin ASes present in the Internet Routing Table: 241 AfriNIC Prefixes per ASN: 17.18 AfriNIC Region origin ASes announcing only one prefix: 79 AfriNIC Region transit ASes present in the Internet Routing Table: 46 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 11360256 Equivalent to 0 /8s, 173 /16s and 88 /24s Percentage of available AfriNIC address space announced: 33.9 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 1634 387 89 Videsh Sanchar Nigam Ltd. Aut 9498 1162 550 61 BHARTI BT INTERNET LTD. 9583 1161 129 195 Sify Limited 17488 1059 70 77 Hathway IP Over Cable Interne 4134 856 12647 320 CHINANET-BACKBONE 4766 849 6006 345 Korea Telecom (KIX) 18101 680 149 54 Reliance Infocom Ltd Internet 9829 598 450 12 BSNL National Internet Backbo 1221 545 1919 419 Telstra Pty Ltd 4808 519 837 132 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 4323 1423 1029 375 Time Warner Telecom 7018 1407 5977 1003 AT&T WorldNet Services 2386 1398 642 864 AT&T Data Communications Serv 11492 1214 146 37 Cable One 7011 1097 319 624 Citizens Utilities 18566 1043 296 10 Covad Communications 1785 1011 511 106 AppliedTheory Corporation 6197 988 598 508 BellSouth Network Solutions, 174 969 6835 802 Cogent Communications 22773 934 2394 62 Cox Communications, Inc. 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 408 1787 368 TDC Tele Danmark 9198 381 74 9 Kazakhtelecom Data Network Ad 8452 356 188 7 TEDATA 3301 338 1459 307 TeliaNet Sweden 3320 323 7044 266 Deutsche Telekom AG 8866 297 78 24 Bulgarian Telecommunication C 5462 292 666 26 Telewest Broadband 8551 282 269 37 Bezeq International 3215 278 2679 89 France Telecom Transpac 6746 267 128 244 Dynamic Network Technologies, 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 1189 2432 222 UniNet S.A. de C.V. 11830 573 299 9 Instituto Costarricense de El 22047 562 270 14 VTR PUNTO NET S.A. 7303 455 222 60 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 414 85 46 ENTEL CHILE S.A. 11172 414 117 69 Servicios Alestra S.A de C.V 10620 386 98 77 TVCABLE BOGOTA 14117 384 25 15 Telefonica del Sur S.A. 20299 308 36 31 NEWCOM AMERICAS 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 464 61 27 LINKdotNET AS number 3741 289 853 223 The Internet Solution 20858 217 34 3 EgyNet 2018 178 190 86 Tertiary Education Network 5713 150 558 120 Telkom SA Ltd 6713 143 135 11 Itissalat Al-MAGHRIB 33783 134 10 12 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 29571 116 13 8 Ci Telecom Autonomous system 33776 99 6 7 Starcomms Nigeria Limited 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 2768 3020 115 bellsouth.net, inc. 23577 1638 34 700 Korea Telecom (ATM-MPLS) 4755 1634 387 89 Videsh Sanchar Nigam Ltd. Aut 4323 1423 1029 375 Time Warner Telecom 7018 1407 5977 1003 AT&T WorldNet Services 2386 1398 642 864 AT&T Data Communications Serv 11492 1214 146 37 Cable One 8151 1189 2432 222 UniNet S.A. de C.V. 9498 1162 550 61 BHARTI BT INTERNET LTD. 9583 1161 129 195 Sify Limited Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1634 1545 Videsh Sanchar Nigam Ltd. Aut 11492 1214 1177 Cable One 9498 1162 1101 BHARTI BT INTERNET LTD. 4323 1423 1048 Time Warner Telecom 18566 1043 1033 Covad Communications 17488 1059 982 Hathway IP Over Cable Interne 8151 1189 967 UniNet S.A. de C.V. 9583 1161 966 Sify Limited 17676 1016 951 Softbank BB Corp. 23577 1638 938 Korea Telecom (ATM-MPLS) Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 1239 Sprint 12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing 12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies, 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 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 Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 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 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 /10:16 /11:42 /12:140 /13:280 /14:506 /15:999 /16:9868 /17:4359 /18:7294 /19:15348 /20:17778 /21:17144 /22:21534 /23:22624 /24:133802 /25:772 /26:919 /27:495 /28:96 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1200 1214 Cable One 2386 1096 1398 AT&T Data Communications Serv 18566 1024 1043 Covad Communications 9583 999 1161 Sify Limited 7011 980 1097 Citizens Utilities 4755 972 1634 Videsh Sanchar Nigam Ltd. Aut 6478 924 925 AT&T Worldnet Services 17488 871 1059 Hathway IP Over Cable Interne 6389 863 2768 bellsouth.net, inc. 9498 835 1162 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:106 12:2015 13:1 15:20 16:3 17:6 18:13 20:35 24:1062 25:1 32:61 33:4 38:415 40:94 41:657 44:2 47:8 52:3 55:3 56:3 57:22 58:512 59:455 60:440 61:982 62:1085 63:1959 64:3379 65:2401 66:3624 67:1144 68:672 69:2156 70:602 71:126 72:1677 73:6 74:952 75:226 76:289 77:646 78:609 79:146 80:898 81:853 82:605 83:373 84:554 85:1004 86:405 87:645 88:344 89:1273 90:11 91:1205 92:285 93:329 96:25 97:14 98:142 99:3 116:620 117:303 118:125 119:403 120:13 121:526 122:744 123:316 124:839 125:1115 128:320 129:198 130:128 131:401 132:65 133:9 134:179 135:32 136:222 137:113 138:150 139:60 140:490 141:96 142:437 143:284 144:346 145:50 146:360 147:142 148:502 149:180 150:128 151:175 152:142 153:127 154:10 155:265 156:208 157:263 158:168 159:224 160:254 161:111 162:210 163:196 164:577 165:444 166:298 167:316 168:611 169:127 170:427 171:28 172:2 189:164 190:1808 192:5770 193:4099 194:3260 195:2416 196:1061 198:3746 199:3235 200:5622 201:1406 202:7558 203:7804 204:4003 205:2089 206:2391 207:2754 208:3271 209:3469 210:2537 211:1046 212:1362 213:1647 214:447 215:50 216:4325 217:1220 218:351 219:407 220:1076 221:424 222:306 End of report _______________________________________________ NANOG mailing list NANOG@nanog.org http://mailman.nanog.org/mailman/listinfo/nanog