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 29 Mar, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 250362 Prefixes after maximum aggregation: 125916 Deaggregation factor: 1.99 Unique aggregates announced to Internet: 121576 Total ASes present in the Internet Routing Table: 27752 Prefixes per ASN: 9.02 Origin-only ASes present in the Internet Routing Table: 24169 Origin ASes announcing only one prefix: 11220 Transit ASes present in the Internet Routing Table: 3583 Transit-only ASes present in the Internet Routing Table: 76 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (43380) 13 Prefixes from unregistered ASNs in the Routing Table: 25295 Unregistered ASNs in the Routing Table: 1915 Number of 32-bit ASNs allocated by the RIRs: 47 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: 855 Number of addresses announced to Internet: 1851948960 Equivalent to 110 /8s, 98 /16s and 127 /24s Percentage of available address space announced: 50.0 Percentage of allocated address space announced: 61.4 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.0 Total number of prefixes smaller than registry allocations: 119223 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42339 Total APNIC prefixes after maximum aggregation: 13317 APNIC Deaggregation factor: 3.18 Prefixes being announced from the APNIC address blocks: 54523 Unique aggregates announced from the APNIC address blocks: 23244 APNIC Region origin ASes present in the Internet Routing Table: 1909 APNIC Prefixes per ASN: 28.56 APNIC Region origin ASes announcing only one prefix: 554 APNIC Region transit ASes present in the Internet Routing Table: 352 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 337576544 Equivalent to 20 /8s, 31 /16s and 2 /24s Percentage of available APNIC address space announced: 77.4 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: 106733 Total ARIN prefixes after maximum aggregation: 58780 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 85545 Unique aggregates announced from the ARIN address blocks: 33880 ARIN Region origin ASes present in the Internet Routing Table: 11657 ARIN Prefixes per ASN: 7.34 ARIN Region origin ASes announcing only one prefix: 4528 ARIN Region transit ASes present in the Internet Routing Table: 1042 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 360984448 Equivalent to 21 /8s, 132 /16s and 47 /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 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: 53206 Total RIPE prefixes after maximum aggregation: 33043 RIPE Deaggregation factor: 1.61 Prefixes being announced from the RIPE address blocks: 48775 Unique aggregates announced from the RIPE address blocks: 32684 RIPE Region origin ASes present in the Internet Routing Table: 11085 RIPE Prefixes per ASN: 4.40 RIPE Region origin ASes announcing only one prefix: 5781 RIPE Region transit ASes present in the Internet Routing Table: 1703 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 350432384 Equivalent to 20 /8s, 227 /16s and 44 /24s Percentage of available RIPE address space announced: 80.3 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 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: 19204 Total LACNIC prefixes after maximum aggregation: 4812 LACNIC Deaggregation factor: 3.99 Prefixes being announced from the LACNIC address blocks: 17548 Unique aggregates announced from the LACNIC address blocks: 9612 LACNIC Region origin ASes present in the Internet Routing Table: 883 LACNIC Prefixes per ASN: 19.87 LACNIC Region origin ASes announcing only one prefix: 277 LACNIC Region transit ASes present in the Internet Routing Table: 154 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 49885696 Equivalent to 2 /8s, 249 /16s and 50 /24s Percentage of available LACNIC address space announced: 49.6 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: 3584 Total AfriNIC prefixes after maximum aggregation: 1124 AfriNIC Deaggregation factor: 3.19 Prefixes being announced from the AfriNIC address blocks: 3987 Unique aggregates announced from the AfriNIC address blocks: 1808 AfriNIC Region origin ASes present in the Internet Routing Table: 234 AfriNIC Prefixes per ASN: 17.04 AfriNIC Region origin ASes announcing only one prefix: 80 AfriNIC Region transit ASes present in the Internet Routing Table: 45 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 10167552 Equivalent to 0 /8s, 155 /16s and 37 /24s Percentage of available AfriNIC address space announced: 30.3 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 1619 387 87 Videsh Sanchar Nigam Ltd. Aut 9583 1152 140 16 Sify Limited 9498 1129 550 63 BHARTI BT INTERNET LTD. 17488 1045 67 83 Hathway IP Over Cable Interne 4134 859 12487 319 CHINANET-BACKBONE 4766 850 6005 341 Korea Telecom (KIX) 18101 673 126 52 Reliance Infocom Ltd Internet 9829 586 450 12 BSNL National Internet Backbo 4812 562 969 92 China Telecom (Shanghai) 1221 542 1950 418 Telstra Pty Ltd 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 7018 1427 5927 1009 AT&T WorldNet Services 2386 1399 658 851 AT&T Data Communications Serv 4323 1396 1028 368 Time Warner Telecom 11492 1219 147 23 Cable One 7011 1082 315 615 Citizens Utilities 18566 1046 296 10 Covad Communications 1785 1007 479 107 AppliedTheory Corporation 6197 989 728 477 BellSouth Network Solutions, 174 966 6834 812 Cogent Communications 20115 915 859 508 Charter Communications 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 398 1777 362 TDC Tele Danmark 8452 358 188 7 TEDATA 3301 341 1459 310 TeliaNet Sweden 3320 322 7045 267 Deutsche Telekom AG 8866 293 78 24 Bulgarian Telecommunication C 5462 292 666 26 Telewest Broadband 3215 278 2671 91 France Telecom Transpac 6746 264 127 242 Dynamic Network Technologies, 680 259 2046 258 DFN-IP service G-WiN 9155 254 46 11 QualityNet AS number 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 1187 2448 222 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 452 220 60 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 410 117 69 Servicios Alestra S.A de C.V 6471 396 85 39 ENTEL CHILE S.A. 10620 396 104 50 TVCABLE BOGOTA 14117 352 25 15 Telefonica del Sur S.A. 22047 322 270 14 VTR PUNTO NET S.A. 10481 310 152 10 Prima 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 452 60 27 LINKdotNET AS number 3741 287 869 223 The Internet Solution 2018 258 276 112 Tertiary Education Network 20858 183 34 3 EgyNet 6713 143 135 11 Itissalat Al-MAGHRIB 33783 130 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 89 48 7 RAYA Telecom - Egypt 2905 83 176 74 The Internetworking Company o 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 1914 3009 94 bellsouth.net, inc. 23577 1634 34 699 Korea Telecom (ATM-MPLS) 4755 1619 387 87 Videsh Sanchar Nigam Ltd. Aut 7018 1427 5927 1009 AT&T WorldNet Services 2386 1399 658 851 AT&T Data Communications Serv 4323 1396 1028 368 Time Warner Telecom 11492 1219 147 23 Cable One 8151 1187 2448 222 UniNet S.A. de C.V. 9583 1152 140 16 Sify Limited 9498 1129 550 63 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1619 1532 Videsh Sanchar Nigam Ltd. Aut 11492 1219 1196 Cable One 9583 1152 1136 Sify Limited 9498 1129 1066 BHARTI BT INTERNET LTD. 18566 1046 1036 Covad Communications 4323 1396 1028 Time Warner Telecom 8151 1187 965 UniNet S.A. de C.V. 17488 1045 962 Hathway IP Over Cable Interne 17676 1018 952 Softbank BB Corp. 23577 1634 935 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 26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati 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 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 14984 UNALLOCATED 12.2.192.0/24 7132 SBC Internet Service 15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies, 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 /11:41 /12:137 /13:277 /14:499 /15:997 /16:9813 /17:4312 /18:7285 /19:15269 /20:17525 /21:16771 /22:21294 /23:22327 /24:131495 /25:775 /26:894 /27:483 /28:106 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1205 1219 Cable One 2386 1099 1399 AT&T Data Communications Serv 18566 1027 1046 Covad Communications 9583 987 1152 Sify Limited 7011 964 1082 Citizens Utilities 4755 962 1619 Videsh Sanchar Nigam Ltd. Aut 6478 893 894 AT&T Worldnet Services 17488 860 1045 Hathway IP Over Cable Interne 23577 808 1634 Korea Telecom (ATM-MPLS) 9498 804 1129 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 8:102 12:1998 13:1 15:20 16:3 17:6 18:13 20:35 24:1046 25:1 32:60 33:4 38:407 40:95 41:634 44:2 47:8 52:3 55:3 56:3 57:22 58:513 59:423 60:423 61:987 62:1087 63:1957 64:3360 65:2370 66:3607 67:1092 68:654 69:2110 70:541 71:127 72:1540 73:6 74:899 75:221 76:284 77:617 78:543 79:111 80:892 81:831 82:607 83:370 84:522 85:943 86:388 87:628 88:322 89:1207 90:11 91:1126 92:238 93:166 96:19 97:16 98:108 99:3 116:582 117:280 118:102 119:380 121:465 122:719 123:303 124:834 125:1125 128:325 129:198 130:124 131:405 132:69 133:9 134:188 135:32 136:222 137:119 138:155 139:65 140:483 141:110 142:380 143:279 144:347 145:54 146:338 147:133 148:496 149:180 150:121 151:159 152:142 153:127 154:11 155:266 156:207 157:254 158:167 159:223 160:245 161:110 162:206 163:219 164:572 165:433 166:296 167:314 168:594 169:130 170:426 171:28 172:3 189:165 190:1582 192:5769 193:4089 194:3259 195:2379 196:1075 198:3761 199:3235 200:5519 201:1322 202:7543 203:7774 204:3986 205:2111 206:2413 207:2721 208:3223 209:3472 210:2525 211:1033 212:1326 213:1610 214:453 215:48 216:4278 217:1197 218:349 219:404 220:1062 221:402 222:312 End of report
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