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 10:00 +10GMT Sat 19 Jan, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 243516 Prefixes after maximum aggregation: 123936 Deaggregation factor: 1.96 Unique aggregates announced to Internet: 117788 Total ASes present in the Internet Routing Table: 27117 Prefixes per ASN: 8.98 Origin-only ASes present in the Internet Routing Table: 23629 Origin ASes announcing only one prefix: 11488 Transit ASes present in the Internet Routing Table: 3488 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (29642) 15 Prefixes from unregistered ASNs in the Routing Table: 10 Unregistered ASNs in the Routing Table: 10 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1803647520 Equivalent to 107 /8s, 129 /16s and 122 /24s Percentage of available address space announced: 48.7 Percentage of allocated address space announced: 62.2 Percentage of available address space allocated: 78.2 Total number of prefixes smaller than registry allocations: 114743 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 56152 Total APNIC prefixes after maximum aggregation: 20652 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 53652 Unique aggregates announced from the APNIC address blocks: 22808 APNIC Region origin ASes present in the Internet Routing Table: 3100 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 809 APNIC Region transit ASes present in the Internet Routing Table: 459 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 326308000 Equivalent to 19 /8s, 115 /16s and 16 /24s Percentage of available APNIC address space announced: 74.6 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 114/7, 116/6, 120/6, 124/7, 126/8 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 114660 Total ARIN prefixes after maximum aggregation: 65243 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 83573 Unique aggregates announced from the ARIN address blocks: 33291 ARIN Region origin ASes present in the Internet Routing Table: 12069 ARIN Prefixes per ASN: 6.92 ARIN Region origin ASes announcing only one prefix: 4657 ARIN Region transit ASes present in the Internet Routing Table: 1148 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 357760960 Equivalent to 21 /8s, 82 /16s and 255 /24s Percentage of available ARIN address space announced: 79.0 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, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 50874 Total RIPE prefixes after maximum aggregation: 32306 RIPE Deaggregation factor: 1.57 Prefixes being announced from the RIPE address blocks: 48212 Unique aggregates announced from the RIPE address blocks: 32047 RIPE Region origin ASes present in the Internet Routing Table: 10762 RIPE Prefixes per ASN: 4.48 RIPE Region origin ASes announcing only one prefix: 5665 RIPE Region transit ASes present in the Internet Routing Table: 1657 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 340400128 Equivalent to 20 /8s, 74 /16s and 24 /24s Percentage of available RIPE address space announced: 78.0 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, 78/7, 80/4, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 18457 Total LACNIC prefixes after maximum aggregation: 4611 LACNIC Deaggregation factor: 4.00 Prefixes being announced from the LACNIC address blocks: 16670 Unique aggregates announced from the LACNIC address blocks: 9023 LACNIC Region origin ASes present in the Internet Routing Table: 894 LACNIC Prefixes per ASN: 18.65 LACNIC Region origin ASes announcing only one prefix: 288 LACNIC Region transit ASes present in the Internet Routing Table: 150 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 47263488 Equivalent to 2 /8s, 209 /16s and 47 /24s Percentage of available LACNIC address space announced: 47.0 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 3358 Total AfriNIC prefixes after maximum aggregation: 1106 AfriNIC Deaggregation factor: 3.04 Prefixes being announced from the AfriNIC address blocks: 2507 Unique aggregates announced from the AfriNIC address blocks: 1457 AfriNIC Region origin ASes present in the Internet Routing Table: 217 AfriNIC Prefixes per ASN: 11.55 AfriNIC Region origin ASes announcing only one prefix: 69 AfriNIC Region transit ASes present in the Internet Routing Table: 39 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 8208896 Equivalent to 0 /8s, 125 /16s and 66 /24s Percentage of available AfriNIC address space announced: 24.5 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 1546 384 75 Videsh Sanchar Nigam Ltd. Aut 9583 1126 108 16 Sify Limited 9498 1102 549 61 BHARTI BT INTERNET LTD. 17488 960 62 87 Hathway IP Over Cable Interne 4134 862 11761 310 CHINANET-BACKBONE 4766 839 5494 340 Korea Telecom (KIX) 23577 817 34 695 Korea Telecom (ATM-MPLS) 18101 608 121 60 Reliance Infocom Ltd Internet 4780 594 309 45 Digital United Inc. 9829 592 449 11 BSNL National Internet Backbo 1221 544 1952 420 Telstra Pty Ltd 4812 531 934 86 China Telecom (Shanghai) 4808 530 821 125 CNCGROUP IP network: China169 4668 523 68 10 LG-EDS Systems Inc. 17676 506 10919 64 Softbank BB Corp. 7545 486 147 92 TPG Internet Pty Ltd 4802 469 128 150 Wantree Development 9443 437 121 71 Primus Telecommunications 17974 399 145 17 PT TELEKOMUNIKASI INDONESIA 7474 385 202 271 SingTel Optus Pty Ltd ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1465 6058 990 AT&T WorldNet Services 4323 1389 1010 364 Time Warner Telecom 2386 1361 668 831 AT&T Data Communications Serv 11492 1210 135 17 Cable One 6478 1100 331 121 AT&T Worldnet Services 18566 1040 296 10 Covad Communications 7011 1025 299 587 Citizens Utilities 174 970 6834 812 Cogent Communications 6197 970 713 503 BellSouth Network Solutions, 701 896 6559 690 UUNET Technologies, Inc. 19262 874 3219 151 Verizon Global Networks 20115 864 795 471 Charter Communications 22773 841 2139 58 Cox Communications, Inc. 3356 839 10910 413 Level 3 Communications, LLC 1239 793 2672 551 Sprint 209 748 3911 600 Qwest 5668 667 177 21 CenturyTel Internet Holdings, 6140 616 110 152 ImpSat 6517 609 150 41 Yipes Communications, Inc. 15270 604 161 56 PaeTec.net -a division of Pae RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 403 1651 368 TDC Tele Danmark 3301 330 1458 301 TeliaNet Sweden 3320 318 6019 264 Deutsche Telekom AG 8452 288 188 7 TEDATA 8866 279 78 24 Bulgarian Telecommunication C 8551 278 267 41 Bezeq International 680 270 2046 255 DFN-IP service G-WiN 3215 270 2583 92 France Telecom Transpac 8708 270 420 241 Romania Data Systems S.A. 6746 269 128 247 Dynamic Network Technologies, 8220 250 422 227 COLT Telecommunications 3352 241 1948 40 Ibernet, Internet Access Netw 3269 231 3037 68 TELECOM ITALIA 5462 229 666 27 Telewest Broadband 9155 216 43 10 QualityNet AS number 3300 211 172 100 AUCS Communications Services 9121 209 1444 25 TTnet Autonomous System 29357 199 17 4 WATANIYA TELECOM 1257 197 1196 180 SWIPnet Swedish IP Network 2856 195 2307 162 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1147 2390 215 UniNet S.A. de C.V. 11830 547 299 9 Instituto Costarricense de El 16814 427 27 10 NSS, S.A. 7303 421 205 54 Telecom Argentina Stet-France 11172 396 115 62 Servicios Alestra S.A de C.V 6471 385 85 39 ENTEL CHILE S.A. 10620 351 92 25 TVCABLE BOGOTA 14117 351 23 16 Telefonica del Sur S.A. 22047 322 254 13 VTR PUNTO NET S.A. 10481 301 120 10 Prima S.A. 6147 255 214 21 Telefonica Del Peru 7738 239 602 25 Telecomunicacoes da Bahia S.A 11556 236 128 4 Cable-Wireless Panama 20299 236 33 29 NEWCOM AMERICAS 23216 231 17 49 RAMtelecom Telecomunicaciones 28573 228 322 23 NET Servicos de Comunicao S.A 6503 220 180 85 AVANTEL, S.A. 10834 193 76 40 ADVANCE TELECOMUNICACIONES S. 19169 193 12 20 Telconet 21826 187 33 48 INTERCABLE AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 408 60 31 LINKdotNET AS number 3741 279 869 225 The Internet Solution 20858 202 34 3 EgyNet 6713 145 135 11 Itissalat Al-MAGHRIB 2018 142 268 114 Tertiary Education Network 33783 127 9 20 EEPAD TISP TELECOM & INTERNET 5536 124 8 10 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 15475 89 84 4 Nile Online 24835 88 48 6 RAYA Telecom - Egypt 29571 77 13 7 Ci Telecom Autonomous system 2905 76 174 73 The Internetworking Company o 23889 76 24 16 MAURITIUS TELECOM 20484 71 5 4 Yalla Online Autonomous Syste 15706 57 12 4 Sudatel Internet Exchange Aut 5713 50 455 40 Telkom SA Ltd 33774 50 37 28 AS Number for Telecom Algeria 16637 47 21 28 Johnnic e-Ventures 8524 33 2 8 AUCEGYPT Autonomous System 21152 32 2 1 AS for the uplinks of Soficom Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 11492 1210 1193 Cable One 9583 1126 1110 Sify Limited 9498 1102 1041 BHARTI BT INTERNET LTD. 18566 1040 1030 Covad Communications 4323 1389 1025 Time Warner Telecom 6478 1100 979 AT&T Worldnet Services 8151 1147 932 UniNet S.A. de C.V. 17488 960 873 Hathway IP Over Cable Interne 22773 841 783 Cox Communications, Inc. 19262 874 723 Verizon Global Networks 5668 667 646 CenturyTel Internet Holdings, 9829 592 581 BSNL National Internet Backbo 6517 609 568 Yipes Communications, Inc. 4134 862 552 CHINANET-BACKBONE 4780 594 549 Digital United Inc. 18101 608 548 Reliance Infocom Ltd Internet 15270 604 548 PaeTec.net -a division of Pae 11830 547 538 Instituto Costarricense de El 2386 1361 530 AT&T Data Communications Serv 19916 563 521 OLM LLC List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies, 65364 PRIVATE 190.144.163.0/24 14080 FIRSTCOM COLOMBIA 65389 PRIVATE 190.144.166.0/24 14080 FIRSTCOM COLOMBIA 65394 PRIVATE 190.144.167.0/24 14080 FIRSTCOM COLOMBIA 65403 PRIVATE 190.144.168.0/24 14080 FIRSTCOM COLOMBIA 65375 PRIVATE 190.144.175.0/24 14080 FIRSTCOM COLOMBIA 21624 UNALLOCATED 208.246.136.0/24 701 UUNET Technologies, 21624 UNALLOCATED 208.248.233.0/24 701 UUNET Technologies, Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 31.31.31.0/24 9730 The Best ISP to go Multimedia 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 172.33.1.0/24 7018 AT&T WorldNet Services 173.173.173.0/24 9730 The Best ISP to go Multimedia 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.153.136.0/21 721 DLA Systems Automation Center 192.172.0.0/19 721 DLA Systems Automation Center 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 /10:15 /11:40 /12:137 /13:275 /14:490 /15:973 /16:9746 /17:4214 /18:6946 /19:14889 /20:17106 /21:16196 /22:20423 /23:21532 /24:127846 /25:875 /26:1104 /27:558 /28:106 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1200 1210 Cable One 6478 1099 1100 AT&T Worldnet Services 2386 1055 1361 AT&T Data Communications Serv 18566 1021 1040 Covad Communications 9583 962 1126 Sify Limited 7011 910 1025 Citizens Utilities 4755 906 1546 Videsh Sanchar Nigam Ltd. Aut 23577 808 817 Korea Telecom (ATM-MPLS) 7018 799 1465 AT&T WorldNet Services 17488 775 960 Hathway IP Over Cable Interne 9498 774 1102 BHARTI BT INTERNET LTD. 6197 729 970 BellSouth Network Solutions, 4766 622 839 Korea Telecom (KIX) 4323 594 1389 Time Warner Telecom 6517 572 609 Yipes Communications, Inc. 15270 563 604 PaeTec.net -a division of Pae 19916 558 563 OLM LLC 5668 524 667 CenturyTel Internet Holdings, 4668 513 523 LG-EDS Systems Inc. 18101 502 608 Reliance Infocom Ltd Internet Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:95 12:1944 13:2 15:21 16:3 17:6 18:14 20:35 24:1013 25:1 31:1 32:61 33:4 38:382 40:65 41:449 44:2 47:8 52:3 55:3 56:3 57:22 58:506 59:416 60:407 61:976 62:1058 63:1976 64:3337 65:2378 66:3609 67:1055 68:635 69:2087 70:467 71:102 72:1458 73:7 74:789 75:170 76:183 77:479 78:443 79:66 80:884 81:787 82:574 83:352 84:513 85:921 86:372 87:602 88:291 89:1085 90:41 91:924 92:67 93:18 96:3 97:7 98:30 114:1 115:1 116:488 117:243 118:61 119:92 121:405 122:673 123:264 124:773 125:1068 128:309 129:199 130:125 131:392 132:68 133:9 134:187 135:31 136:215 137:97 138:156 139:82 140:497 141:106 142:378 143:265 144:322 145:51 146:331 147:128 148:480 149:188 150:116 151:132 152:95 153:127 154:11 155:281 156:197 157:249 158:164 159:212 160:213 161:96 162:199 163:186 164:562 165:419 166:291 167:311 168:572 169:132 170:435 171:28 172:3 173:1 189:142 190:1342 192:5751 193:4067 194:3249 195:2319 196:955 198:3807 199:3212 200:5442 201:1285 202:7546 203:7896 204:3961 205:2051 206:2418 207:2745 208:3104 209:3611 210:2651 211:1137 212:1292 213:1618 214:444 215:46 216:4126 217:1233 218:331 219:405 220:1013 221:411 222:298 End of report