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 23 Aug, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 266564 Prefixes after maximum aggregation: 129847 Deaggregation factor: 2.05 Unique aggregates announced to Internet: 129767 Total ASes present in the Internet Routing Table: 29013 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 25251 Origin ASes announcing only one prefix: 12229 Transit ASes present in the Internet Routing Table: 3762 Transit-only ASes present in the Internet Routing Table: 80 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: 571 Unregistered ASNs in the Routing Table: 212 Number of 32-bit ASNs allocated by the RIRs: 58 Prefixes from 32-bit ASNs in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 765 Number of addresses announced to Internet: 1893845344 Equivalent to 112 /8s, 225 /16s and 201 /24s Percentage of available address space announced: 51.1 Percentage of allocated address space announced: 62.0 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.2 Total number of prefixes smaller than registry allocations: 130756 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 61188 Total APNIC prefixes after maximum aggregation: 22742 APNIC Deaggregation factor: 2.69 Prefixes being announced from the APNIC address blocks: 58158 Unique aggregates announced from the APNIC address blocks: 26203 APNIC Region origin ASes present in the Internet Routing Table: 3337 APNIC Prefixes per ASN: 17.43 APNIC Region origin ASes announcing only one prefix: 879 APNIC Region transit ASes present in the Internet Routing Table: 514 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 372857376 Equivalent to 22 /8s, 57 /16s and 90 /24s Percentage of available APNIC address space announced: 79.4 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, 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: 122269 Total ARIN prefixes after maximum aggregation: 65261 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 91444 Unique aggregates announced from the ARIN address blocks: 34942 ARIN Region origin ASes present in the Internet Routing Table: 12396 ARIN Prefixes per ASN: 7.38 ARIN Region origin ASes announcing only one prefix: 4764 ARIN Region transit ASes present in the Internet Routing Table: 1180 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 360765536 Equivalent to 21 /8s, 128 /16s and 216 /24s Percentage of available ARIN address space announced: 74.1 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: 57552 Total RIPE prefixes after maximum aggregation: 34846 RIPE Deaggregation factor: 1.65 Prefixes being announced from the RIPE address blocks: 52673 Unique aggregates announced from the RIPE address blocks: 35376 RIPE Region origin ASes present in the Internet Routing Table: 11754 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 6181 RIPE Region transit ASes present in the Internet Routing Table: 1797 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 369446912 Equivalent to 22 /8s, 5 /16s and 80 /24s Percentage of available RIPE address space announced: 84.7 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: 20959 Total LACNIC prefixes after maximum aggregation: 5284 LACNIC Deaggregation factor: 3.97 Prefixes being announced from the LACNIC address blocks: 19219 Unique aggregates announced from the LACNIC address blocks: 10731 LACNIC Region origin ASes present in the Internet Routing Table: 986 LACNIC Prefixes per ASN: 19.49 LACNIC Region origin ASes announcing only one prefix: 325 LACNIC Region transit ASes present in the Internet Routing Table: 168 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 54552832 Equivalent to 3 /8s, 64 /16s and 105 /24s Percentage of available LACNIC address space announced: 54.2 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: 4024 Total AfriNIC prefixes after maximum aggregation: 1236 AfriNIC Deaggregation factor: 3.26 Prefixes being announced from the AfriNIC address blocks: 4368 Unique aggregates announced from the AfriNIC address blocks: 1935 AfriNIC Region origin ASes present in the Internet Routing Table: 250 AfriNIC Prefixes per ASN: 17.47 AfriNIC Region origin ASes announcing only one prefix: 80 AfriNIC Region transit ASes present in the Internet Routing Table: 52 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 12627712 Equivalent to 0 /8s, 192 /16s and 175 /24s Percentage of available AfriNIC address space announced: 37.6 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 1703 537 179 Videsh Sanchar Nigam Ltd. Aut 17488 1334 88 101 Hathway IP Over Cable Interne 9583 1184 93 496 Sify Limited 4766 868 6407 355 Korea Telecom (KIX) 4134 835 13521 338 CHINANET-BACKBONE 23577 823 35 698 Korea Telecom (ATM-MPLS) 4780 715 353 61 Digital United Inc. 18101 693 167 33 Reliance Infocom Ltd Internet 9498 675 291 54 BHARTI BT INTERNET LTD. 4808 618 1112 137 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 3200 3358 207 bellsouth.net, inc. 209 2881 3857 620 Qwest 6298 1981 319 726 Cox Communicatons 1785 1647 710 155 AppliedTheory Corporation 2386 1505 692 900 AT&T Data Communications Serv 4323 1495 1073 376 Time Warner Telecom 7018 1410 5816 983 AT&T WorldNet Services 11492 1214 151 22 Cable One 6478 1114 237 174 AT&T Worldnet Services 20115 1113 1080 576 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 414 1776 372 TDC Tele Danmark 3215 396 2756 106 France Telecom Transpac 8452 354 188 11 TEDATA 3301 333 1444 304 TeliaNet Sweden 3320 323 7047 271 Deutsche Telekom AG 8866 316 77 21 Bulgarian Telecommunication C 5462 296 666 27 Telewest Broadband 8551 288 270 38 Bezeq International 680 275 2047 265 DFN-IP service G-WiN 6746 270 126 244 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 1520 2592 225 UniNet S.A. de C.V. 11830 664 299 9 Instituto Costarricense de El 22047 563 270 14 VTR PUNTO NET S.A. 7303 477 235 67 Telecom Argentina Stet-France 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 10620 383 102 74 TVCABLE BOGOTA 14117 345 23 9 Telefonica del Sur S.A. 28573 325 440 28 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 497 64 29 LINKdotNET AS number 20858 402 34 3 EgyNet 3741 273 857 226 The Internet Solution 2018 224 213 131 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 136 10 13 EEPAD TISP TELECOM & INTERNET 5536 120 8 17 Internet Egypt Network 5713 118 539 70 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 3200 3358 207 bellsouth.net, inc. 209 2881 3857 620 Qwest 6298 1981 319 726 Cox Communicatons 4755 1703 537 179 Videsh Sanchar Nigam Ltd. Aut 1785 1647 710 155 AppliedTheory Corporation 8151 1520 2592 225 UniNet S.A. de C.V. 2386 1505 692 900 AT&T Data Communications Serv 4323 1495 1073 376 Time Warner Telecom 7018 1410 5816 983 AT&T WorldNet Services 17488 1334 88 101 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2881 2261 Qwest 4755 1703 1524 Videsh Sanchar Nigam Ltd. Aut 1785 1647 1492 AppliedTheory Corporation 8151 1520 1295 UniNet S.A. de C.V. 6298 1981 1255 Cox Communicatons 17488 1334 1233 Hathway IP Over Cable Interne 11492 1214 1192 Cable One 4323 1495 1119 Time Warner Telecom 18566 1045 1035 Covad Communications 6478 1114 940 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 24.51.159.0/24 7843 Adelphia Corp. 24.53.86.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.55.0.0/18 20001 HoldCo 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 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 /14:530 /15:1058 /16:10041 /17:4382 /18:7591 /19:16021 /20:18706 /21:18315 /22:23079 /23:24200 /24:139428 /25:839 /26:1022 /27:718 /28:89 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2037 3200 bellsouth.net, inc. 6298 1954 1981 Cox Communicatons 209 1647 2881 Qwest 11492 1195 1214 Cable One 2386 1184 1505 AT&T Data Communications Serv 17488 1142 1334 Hathway IP Over Cable Interne 1785 1116 1647 AppliedTheory Corporation 4755 1043 1703 Videsh Sanchar Nigam Ltd. Aut 9583 1040 1184 Sify Limited 6478 1027 1114 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 8:134 12:2126 13:2 15:22 16:3 17:5 18:13 20:35 24:1085 32:59 38:496 40:92 41:700 43:1 44:2 47:12 52:3 55:3 56:3 57:26 58:529 59:512 60:453 61:983 62:1212 63:2052 64:3236 65:2362 66:3436 67:1228 68:776 69:2298 70:860 71:135 72:2012 73:6 74:1117 75:165 76:313 77:765 78:820 79:228 80:975 81:871 82:586 83:378 84:573 85:990 86:402 87:719 88:339 89:1314 90:34 91:1414 92:255 93:793 94:75 96:57 97:60 98:312 99:3 114:96 115:33 116:971 117:337 118:197 119:460 120:74 121:584 122:819 123:380 124:846 125:1186 128:353 129:202 130:135 131:409 132:70 133:9 134:188 135:33 136:223 137:94 138:141 139:93 140:506 141:103 142:406 143:311 144:404 145:51 146:373 147:156 148:517 149:199 150:128 151:183 152:144 153:136 154:10 155:281 156:171 157:288 158:165 159:251 160:272 161:131 162:264 163:156 164:517 165:458 166:361 167:332 168:623 169:141 170:430 171:33 172:10 173:16 188:1 189:488 190:2081 192:5800 193:4133 194:3251 195:2566 196:1025 198:3734 199:3307 200:5535 201:1523 202:7660 203:8074 204:3953 205:2149 206:2369 207:2759 208:3515 209:3435 210:2597 211:1079 212:1423 213:1619 214:180 215:50 216:4379 217:1205 218:345 219:429 220:1060 221:455 222:311 End of report