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 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