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 01 Sep, 2007 Report Website: http://thyme.apnic.net This report: http://thyme.apnic.net/ap-data/2007/09/01/0400 Analysis Summary ---------------- BGP routing table entries examined: 229742 Prefixes after maximum aggregation: 119898 Deaggregation factor: 1.92 Unique aggregates announced to Internet: 110820 Total ASes present in the Internet Routing Table: 26109 Prefixes per ASN: 8.80 Origin-only ASes present in the Internet Routing Table: 22732 Origin ASes announcing only one prefix: 11081 Transit ASes present in the Internet Routing Table: 3377 Transit-only ASes present in the Internet Routing Table: 77 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 20 Max AS path prepend of ASN (35389) 16 Prefixes from unregistered ASNs in the Routing Table: 10 Unregistered ASNs in the Routing Table: 6 Prefixes from 32-bit ASNs in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1756836704 Equivalent to 104 /8s, 183 /16s and 51 /24s Percentage of available address space announced: 47.4 Percentage of allocated address space announced: 62.1 Percentage of available address space allocated: 76.4 Total number of prefixes smaller than registry allocations: 121719 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 53719 Total APNIC prefixes after maximum aggregation: 20575 APNIC Deaggregation factor: 2.61 Prefixes being announced from the APNIC address blocks: 50635 Unique aggregates announced from the APNIC address blocks: 21459 APNIC Region origin ASes present in the Internet Routing Table: 3046 APNIC Prefixes per ASN: 16.62 APNIC Region origin ASes announcing only one prefix: 809 APNIC Region transit ASes present in the Internet Routing Table: 467 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 313653792 Equivalent to 18 /8s, 177 /16s and 250 /24s Percentage of available APNIC address space announced: 77.7 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, 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: 108857 Total ARIN prefixes after maximum aggregation: 62963 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 80198 Unique aggregates announced from the ARIN address blocks: 31899 ARIN Region origin ASes present in the Internet Routing Table: 11791 ARIN Prefixes per ASN: 6.80 ARIN Region origin ASes announcing only one prefix: 4522 ARIN Region transit ASes present in the Internet Routing Table: 1091 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 14 Number of ARIN addresses announced to Internet: 343064576 Equivalent to 20 /8s, 114 /16s and 192 /24s Percentage of available ARIN address space announced: 75.7 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: 48026 Total RIPE prefixes after maximum aggregation: 30905 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 44417 Unique aggregates announced from the RIPE address blocks: 29477 RIPE Region origin ASes present in the Internet Routing Table: 10130 RIPE Prefixes per ASN: 4.38 RIPE Region origin ASes announcing only one prefix: 5399 RIPE Region transit ASes present in the Internet Routing Table: 1605 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 325697152 Equivalent to 19 /8s, 105 /16s and 190 /24s Percentage of available RIPE address space announced: 74.7 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 40960-44031 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: 16441 Total LACNIC prefixes after maximum aggregation: 4422 LACNIC Deaggregation factor: 3.72 Prefixes being announced from the LACNIC address blocks: 14536 Unique aggregates announced from the LACNIC address blocks: 7794 LACNIC Region origin ASes present in the Internet Routing Table: 858 LACNIC Prefixes per ASN: 16.94 LACNIC Region origin ASes announcing only one prefix: 282 LACNIC Region transit ASes present in the Internet Routing Table: 144 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 42168064 Equivalent to 2 /8s, 131 /16s and 111 /24s Percentage of available LACNIC address space announced: 62.8 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2683 Total AfriNIC prefixes after maximum aggregation: 1021 AfriNIC Deaggregation factor: 2.63 Prefixes being announced from the AfriNIC address blocks: 2261 Unique aggregates announced from the AfriNIC address blocks: 1335 AfriNIC Region origin ASes present in the Internet Routing Table: 206 AfriNIC Prefixes per ASN: 10.98 AfriNIC Region origin ASes announcing only one prefix: 69 AfriNIC Region transit ASes present in the Internet Routing Table: 36 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 7426304 Equivalent to 0 /8s, 113 /16s and 81 /24s Percentage of available AfriNIC address space announced: 22.1 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 1345 383 74 Videsh Sanchar Nigam Ltd. Aut 9583 1134 100 106 Sify Limited 4134 1071 11178 289 CHINANET-BACKBONE 9498 997 532 66 BHARTI BT INTERNET LTD. 4766 803 5441 319 Korea Telecom (KIX) 17488 796 52 55 Hathway IP Over Cable Interne 23577 786 34 682 Korea Telecom (ATM-MPLS) 7545 729 159 121 TPG Internet Pty Ltd 18101 595 119 50 Reliance Infocom Ltd Internet 4812 547 968 96 China Telecom (Shanghai) 1221 542 1951 424 Telstra Pty Ltd 4668 516 68 10 LG-EDS Systems Inc. 17676 503 10919 64 Softbank BB Corp. 4808 483 779 114 CNCGROUP IP network: China169 9443 464 122 77 Primus Telecommunications 4802 432 116 158 Wantree Development 7474 378 216 267 SingTel Optus Pty Ltd 17974 373 130 13 PT TELEKOMUNIKASI INDONESIA 4837 366 5104 167 chinanet IDC center beijing n 9829 363 258 14 BSNL National Internet Backbo ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1475 6074 993 AT&T WorldNet Services 4323 1324 992 373 Time Warner Telecom 2386 1214 618 748 AT&T Data Communications Serv 11492 1137 110 11 Cable One 6478 1132 324 169 AT&T Worldnet Services 6197 1028 718 511 BellSouth Network Solutions, 18566 1022 288 9 Covad Communications 174 975 6780 863 Cogent Communications 701 938 6577 716 UUNET Technologies, Inc. 7011 919 278 549 Citizens Utilities 20115 817 751 436 Charter Communications 1239 802 2718 563 Sprint 19262 775 2745 184 Verizon Global Networks 22773 762 2149 50 Cox Communications, Inc. 209 739 3836 584 Qwest 5668 657 176 23 CenturyTel Internet Holdings, 6517 590 165 37 Yipes Communications, Inc. 3356 587 10811 344 Level 3 Communications, LLC 852 576 1095 361 Telus Advanced Communications 15270 574 160 38 PaeTec.net -a division of Pae RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 492 1923 394 UUNET - Commercial IP service 24863 367 57 40 LINKdotNET AS number 9116 346 168 26 Goldenlines main autonomous s 3301 314 1456 294 TeliaNet Sweden 3320 314 6035 261 Deutsche Telekom AG 6746 287 130 263 Dynamic Network Technologies, 680 269 2045 257 DFN-IP service G-WiN 8708 262 420 241 Romania Data Systems S.A. 8220 260 445 243 COLT Telecommunications 3215 258 2424 98 France Telecom Transpac 8551 248 244 28 Bezeq International 3352 227 1868 38 Ibernet, Internet Access Netw 5089 222 1658 54 NTL Group Limited 3269 221 2775 73 TELECOM ITALIA 9121 214 1441 24 TTnet Autonomous System 3292 195 1379 175 TDC Tele Danmark 1257 192 1195 170 SWIPnet Swedish IP Network 3300 192 172 92 AUCS Communications Services 12479 192 578 6 Uni2 Autonomous System 3246 187 253 177 Song Networks LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 904 1974 205 UniNet S.A. de C.V. 11830 517 299 9 Instituto Costarricense de El 16814 426 26 9 NSS, S.A. 11172 371 114 57 Servicios Alestra S.A de C.V 7303 339 177 45 Telecom Argentina Stet-France 14522 333 28 7 SatNet S.A. 6471 322 75 33 ENTEL CHILE S.A. 22047 318 246 13 VTR PUNTO NET S.A. 14117 281 19 15 Telefonica del Sur S.A. 10481 278 104 9 Prima S.A. 11556 235 128 3 Cable-Wireless Panama 6147 227 178 24 Telefonica Del Peru 10620 223 62 23 TVCABLE BOGOTA 6503 201 170 82 AVANTEL, S.A. 23216 196 16 44 RAMtelecom Telecomunicaciones 20299 180 25 31 NEWCOM AMERICAS 8163 177 11 6 METROTEL REDES S.A. 7738 169 506 23 Telecomunicacoes da Bahia S.A 21826 168 30 59 INTERCABLE 19169 165 12 17 Telconet AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 283 868 224 The Internet Solution 8452 222 188 7 TEDATA 2018 148 301 115 Tertiary Education Network 6713 142 135 11 Itissalat Al-MAGHRIB 33783 126 8 11 EEPAD TISP TELECOM & INTERNET 5536 124 8 10 Internet Egypt Network 33776 100 6 3 Starcomms Nigeria Limited 24835 87 48 6 RAYA Telecom - Egypt 15475 75 84 4 Nile Online 2905 74 174 71 The Internetworking Company o 23889 69 24 15 MAURITIUS TELECOM 2561 62 6 2 Egyptian Universities Network 33774 47 29 25 AS Number for Telecom Algeria 5713 46 294 36 Telkom SA Ltd 16637 46 21 29 Johnnic e-Ventures 8524 31 2 10 AUCEGYPT Autonomous System 12455 29 6 3 Jambonet Autonomous system 21280 29 4 4 Swift Global Kenya Ltd.Is an 10798 27 16 1 Standard Bank of South Africa 21491 24 17 2 UTL On-line is RF broadband I Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1345 1271 Videsh Sanchar Nigam Ltd. Aut 11492 1137 1126 Cable One 9583 1134 1028 Sify Limited 18566 1022 1013 Covad Communications 6478 1132 963 AT&T Worldnet Services 4323 1324 951 Time Warner Telecom 9498 997 931 BHARTI BT INTERNET LTD. 4134 1071 782 CHINANET-BACKBONE 17488 796 741 Hathway IP Over Cable Interne 22773 762 712 Cox Communications, Inc. 8151 904 699 UniNet S.A. de C.V. 5668 657 634 CenturyTel Internet Holdings, 7545 729 608 TPG Internet Pty Ltd 19262 775 591 Verizon Global Networks 6517 590 553 Yipes Communications, Inc. 18101 595 545 Reliance Infocom Ltd Internet 15270 574 536 PaeTec.net -a division of Pae 6197 1028 517 BellSouth Network Solutions, 19916 568 517 OLM LLC 11830 517 508 Instituto Costarricense de El List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L 64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L 64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa 64501 RESERVED 195.189.160.0/24 35041 Crystone Autonomous 64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa 64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa 64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa 64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa 64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 7.1.1.0/24 1239 Sprint 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 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 /11:38 /12:134 /13:260 /14:471 /15:919 /16:9620 /17:4069 /18:6596 /19:13963 /20:16197 /21:14868 /22:19127 /23:20067 /24:120967 /25:772 /26:1030 /27:505 /28:84 /29:5 /30:0 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6478 1131 1132 AT&T Worldnet Services 11492 1129 1137 Cable One 18566 1004 1022 Covad Communications 9583 968 1134 Sify Limited 2386 907 1214 AT&T Data Communications Serv 7018 816 1475 AT&T WorldNet Services 7011 813 919 Citizens Utilities 6197 781 1028 BellSouth Network Solutions, 23577 777 786 Korea Telecom (ATM-MPLS) 4755 727 1345 Videsh Sanchar Nigam Ltd. Aut 9498 669 997 BHARTI BT INTERNET LTD. 17488 619 796 Hathway IP Over Cable Interne 4766 601 803 Korea Telecom (KIX) 19916 563 568 OLM LLC 4323 557 1324 Time Warner Telecom 6517 556 590 Yipes Communications, Inc. 15270 538 574 PaeTec.net -a division of Pae 5668 522 657 CenturyTel Internet Holdings, 4668 506 516 LG-EDS Systems Inc. 18101 500 595 Reliance Infocom Ltd Internet Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:8 7:1 8:86 12:1810 13:1 15:19 16:3 17:3 18:13 20:36 24:967 25:1 32:56 33:3 38:349 40:60 41:321 44:2 47:4 52:4 55:3 56:3 57:25 58:471 59:386 60:367 61:1016 62:927 63:2002 64:3189 65:2369 66:3402 67:804 68:658 69:1969 70:448 71:105 72:1396 73:2 74:642 75:262 76:128 77:330 78:48 80:826 81:826 82:576 83:357 84:607 85:805 86:340 87:488 88:279 89:973 90:25 91:522 97:5 116:315 117:154 118:9 121:270 122:595 123:170 124:644 125:988 128:274 129:216 130:139 131:363 132:55 133:9 134:197 135:34 136:189 137:81 138:153 139:72 140:499 141:173 142:379 143:255 144:299 145:46 146:329 147:123 148:412 149:148 150:110 151:159 152:87 153:119 154:3 155:260 156:160 157:214 158:158 159:171 160:113 161:96 162:175 163:180 164:476 165:394 166:275 167:297 168:515 169:123 170:387 171:22 172:2 189:71 190:1005 192:5742 193:3972 194:3191 195:2296 196:974 198:3823 199:3283 200:5094 201:1184 202:7371 203:7710 204:3928 205:1972 206:2418 207:2840 208:2815 209:3479 210:2458 211:1087 212:1314 213:1482 214:413 215:41 216:3987 217:1191 218:325 219:382 220:1028 221:415 222:262 End of report