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 31 Mar, 2007 Analysis Summary ---------------- BGP routing table entries examined: 216896 Prefixes after maximum aggregation: 116021 Deaggregation factor: 1.87 Unique aggregates announced to Internet: 105580 Total ASes present in the Internet Routing Table: 24788 Origin-only ASes present in the Internet Routing Table: 21588 Origin ASes announcing only one prefix: 10438 Transit ASes present in the Internet Routing Table: 3200 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 32 Max AS path prepend of ASN (31269) 23 Prefixes from unregistered ASNs in the Routing Table: 4 Unregistered ASNs in the Routing Table: 5 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1696136904 Equivalent to 101 /8s, 24 /16s and 254 /24s Percentage of available address space announced: 45.8 Percentage of allocated address space announced: 62.9 Percentage of available address space allocated: 72.8 Total number of prefixes smaller than registry allocations: 113042 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 49774 Total APNIC prefixes after maximum aggregation: 20064 APNIC Deaggregation factor: 2.48 Prefixes being announced from the APNIC address blocks: 46835 Unique aggregates announced from the APNIC address blocks: 21082 APNIC Region origin ASes present in the Internet Routing Table: 2911 APNIC Region origin ASes announcing only one prefix: 783 APNIC Region transit ASes present in the Internet Routing Table: 432 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 289521472 Equivalent to 17 /8s, 65 /16s and 191 /24s Percentage of available APNIC address space announced: 71.7 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: 105390 Total ARIN prefixes after maximum aggregation: 61644 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 77433 Unique aggregates announced from the ARIN address blocks: 30092 ARIN Region origin ASes present in the Internet Routing Table: 11448 ARIN Region origin ASes announcing only one prefix: 4390 ARIN Region transit ASes present in the Internet Routing Table: 1049 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 323997824 Equivalent to 19 /8s, 79 /16s and 208 /24s Percentage of available ARIN address space announced: 71.5 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: 44789 Total RIPE prefixes after maximum aggregation: 29241 RIPE Deaggregation factor: 1.53 Prefixes being announced from the RIPE address blocks: 41313 Unique aggregates announced from the RIPE address blocks: 27670 RIPE Region origin ASes present in the Internet Routing Table: 9394 RIPE Region origin ASes announcing only one prefix: 4949 RIPE Region transit ASes present in the Internet Routing Table: 1516 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 32 Number of RIPE addresses announced to Internet: 296694528 Equivalent to 17 /8s, 175 /16s and 51 /24s Percentage of available RIPE address space announced: 73.7 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 40960-43007 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 14458 Total LACNIC prefixes after maximum aggregation: 4089 LACNIC Deaggregation factor: 3.54 Prefixes being announced from the LACNIC address blocks: 12533 Unique aggregates announced from the LACNIC address blocks: 7058 LACNIC Region origin ASes present in the Internet Routing Table: 779 LACNIC Region origin ASes announcing only one prefix: 258 LACNIC Region transit ASes present in the Internet Routing Table: 136 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 38542336 Equivalent to 2 /8s, 76 /16s and 28 /24s Percentage of available LACNIC address space announced: 57.4 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: 2478 Total AfriNIC prefixes after maximum aggregation: 977 AfriNIC Deaggregation factor: 2.54 Prefixes being announced from the AfriNIC address blocks: 1883 Unique aggregates announced from the AfriNIC address blocks: 1147 AfriNIC Region origin ASes present in the Internet Routing Table: 184 AfriNIC Region origin ASes announcing only one prefix: 58 AfriNIC Region transit ASes present in the Internet Routing Table: 37 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 5439488 Equivalent to 0 /8s, 83 /16s and 0 /24s Percentage of available AfriNIC address space announced: 16.2 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 4134 1286 9438 280 CHINANET-BACKBONE 4755 1172 383 77 Videsh Sanchar Nigam Ltd. Aut 9583 1104 78 376 Sify Limited 9498 966 469 70 BHARTI BT INTERNET LTD. 4766 784 4943 313 Korea Telecom (KIX) 23577 784 35 709 Korea Telecom (ATM-MPLS) 17488 624 41 31 Hathway IP Over Cable Interne 7545 602 142 78 TPG Internet Pty Ltd 1221 580 1973 454 Telstra Pty Ltd 18101 538 116 27 Reliance Infocom Ltd Internet 17676 503 10935 65 Softbank BB Corp. 4668 502 68 10 LG-EDS Systems Inc. 9443 454 111 74 Primus Telecommunications 4812 451 791 72 China Telecom (Shanghai) 7474 380 215 259 SingTel Optus Pty Ltd 4802 360 86 149 Wantree Development 17557 360 35 175 Pakistan Telecom 4837 343 4484 154 chinanet IDC center beijing n 17974 341 129 14 PT TELEKOMUNIKASI INDONESIA 2907 338 1749 311 SINET Japan ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1493 6125 978 AT&T WorldNet Services 4323 1268 1020 352 Time Warner Telecom 2386 1090 558 732 AT&T Data Communications Serv 6478 1077 331 153 AT&T Worldnet Services 6197 1029 676 498 BellSouth Network Solutions, 11492 1017 102 12 Cable One 18566 998 288 9 Covad Communications 701 952 6660 726 UUNET Technologies, Inc. 174 942 6791 860 Cogent Communications 1239 820 2715 571 Sprint 20115 809 720 426 Charter Communications 7011 780 225 462 Citizens Utilities 19262 722 2582 162 Verizon Global Networks 209 721 3733 572 Qwest 22773 693 1871 42 Cox Communications, Inc. 721 620 21756 274 DLA Systems Automation Center 852 590 1095 377 Telus Advanced Communications 5668 581 160 17 CenturyTel Internet Holdings, 7029 567 456 81 Alltel Information Services, 19916 567 49 59 OLM LLC RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 521 1893 415 UUNET - Commercial IP service 24863 338 46 31 LINKdotNET AS number 3301 310 1199 289 TeliaNet Sweden 3320 302 4993 250 Deutsche Telekom AG 6746 271 95 249 Dynamic Network Technologies, 8220 268 468 258 COLT Telecommunications 680 258 2044 251 DFN-IP service G-WiN 5416 254 16 12 BATELCO-BH 3215 239 2256 92 France Telecom Transpac 8708 235 287 228 Romania Data Systems S.A. 1257 222 1180 168 SWIPnet Swedish IP Network 3269 215 2583 72 TELECOM ITALIA 3246 208 356 197 Song Networks 8551 206 196 30 Bezeq International 30890 206 17 96 SC Kappa Invexim SRL 20858 199 34 4 EgyNet 3352 195 1795 36 Ibernet, Internet Access Netw 3300 185 171 90 AUCS Communications Services 12479 185 578 6 Uni2 Autonomous System 786 175 1795 175 The JANET IP Service LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1060 2008 209 UniNet S.A. de C.V. 11830 483 299 19 Instituto Costarricense de El 11172 361 116 66 Servicios Alestra S.A de C.V 16814 361 22 8 NSS, S.A. 22047 307 206 11 VTR PUNTO NET S.A. 7303 262 142 23 Telecom Argentina Stet-France 6471 256 74 30 ENTEL CHILE S.A. 14117 241 17 14 Telefonica del Sur S.A. 11556 237 128 4 Cable-Wireless Panama 6147 230 182 20 Telefonica Del Peru 6503 212 171 84 AVANTEL, S.A. 20299 182 25 25 NEWCOM AMERICAS 10481 181 72 8 Prima S.A. 10620 163 48 21 TVCABLE BOGOTA 21826 156 28 59 INTERCABLE 23216 156 19 42 RAMtelecom Telecomunicaciones 7910 154 11 29 ANDINET ON LINE 19429 148 91 38 E.T.B. 18822 146 9 6 TELEFONICA MANQUEHUE 14522 145 22 5 SatNet S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 291 868 232 The Internet Solution 8452 207 60 6 TEDATA 6713 143 135 11 Itissalat Al-MAGHRIB 2018 138 309 113 Tertiary Education Network 15475 128 84 4 Nile Online 5536 123 8 15 Internet Egypt Network 33783 111 6 5 EEPAD TISP TELECOM & INTERNET 2905 85 176 74 The Internetworking Company o 24835 85 48 6 RAYA Telecom - Egypt 15706 55 12 4 Sudatel Internet Exchange Aut 23889 49 16 13 MAURITIUS TELECOM 5713 44 294 34 Telkom SA Ltd 33774 42 13 23 AS Number for Telecom Algeria 12455 34 6 3 Jambonet Autonomous system 16637 33 21 25 Johnnic e-Ventures 33766 33 2 1 Nyala Communications Pty Ltd 8524 30 2 6 AUCEGYPT Autonomous System 33776 27 2 5 Starcomms Nigeria Limited 21280 25 4 4 Swift Global Kenya Ltd.Is an 10798 23 1 14 Standard Bank of South Africa Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1172 1095 Videsh Sanchar Nigam Ltd. Aut 4134 1286 1006 CHINANET-BACKBONE 11492 1017 1005 Cable One 18566 998 989 Covad Communications 6478 1077 924 AT&T Worldnet Services 4323 1268 916 Time Warner Telecom 9498 966 896 BHARTI BT INTERNET LTD. 8151 1060 851 UniNet S.A. de C.V. 9583 1104 728 Sify Limited 22773 693 651 Cox Communications, Inc. 17488 624 593 Hathway IP Over Cable Interne 5668 581 564 CenturyTel Internet Holdings, 19262 722 560 Verizon Global Networks 6197 1029 531 BellSouth Network Solutions, 7545 602 524 TPG Internet Pty Ltd 18101 538 511 Reliance Infocom Ltd Internet 19916 567 508 OLM LLC 855 566 495 Canadian Research Network 4668 502 492 LG-EDS Systems Inc. 7029 567 486 Alltel Information Services, List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65332 PRIVATE 63.166.106.192/27 1803 SPRINT 65412 PRIVATE 124.254.58.0/23 7497 Computer Network Inf 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE 65412 PRIVATE 220.113.17.0/24 7497 Computer Network Inf 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 180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI 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 /8:19 /9:9 /10:12 /11:32 /12:120 /13:230 /14:442 /15:845 /16:9340 /17:3803 /18:6259 /19:13409 /20:15005 /21:13598 /22:17626 /23:19002 /24:114859 /25:778 /26:805 /27:491 /28:61 /29:40 /30:71 /31:0 /32:40 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6478 1068 1077 AT&T Worldnet Services 11492 1003 1017 Cable One 18566 980 998 Covad Communications 9583 944 1104 Sify Limited 7018 815 1493 AT&T WorldNet Services 2386 812 1090 AT&T Data Communications Serv 6197 796 1029 BellSouth Network Solutions, 23577 770 784 Korea Telecom (ATM-MPLS) 7011 683 780 Citizens Utilities 9498 629 966 BHARTI BT INTERNET LTD. 4766 589 784 Korea Telecom (KIX) 4755 569 1172 Videsh Sanchar Nigam Ltd. Aut 19916 562 567 OLM LLC 4323 527 1268 Time Warner Telecom 4668 492 502 LG-EDS Systems Inc. 15270 484 516 PaeTec.net -a division of Pae 855 464 566 Canadian Research Network 18101 462 538 Reliance Infocom Ltd Internet 5668 449 581 CenturyTel Internet Holdings, 17488 446 624 Hathway IP Over Cable Interne Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 7:1 8:64 9:1 12:1793 15:19 16:3 17:3 18:8 20:36 24:934 25:1 32:53 38:291 40:56 41:111 44:2 47:4 52:4 55:1 56:3 57:25 58:355 59:359 60:224 61:905 62:1016 63:1973 64:3098 65:2316 66:3191 67:766 68:636 69:1792 70:489 71:110 72:1240 73:1 74:320 75:171 76:31 77:111 80:824 81:785 82:660 83:376 84:481 85:767 86:384 87:465 88:249 89:874 90:19 91:235 97:1 98:1 116:11 117:1 118:1 119:1 120:1 121:161 122:522 123:63 124:756 125:918 128:273 129:224 130:120 131:350 132:51 133:10 134:190 135:37 136:180 137:87 138:193 139:56 140:482 141:143 142:371 143:212 144:280 145:43 146:323 147:148 148:386 149:188 150:115 151:123 152:93 153:120 154:5 155:250 156:152 157:179 158:161 159:152 160:103 161:90 162:235 163:141 164:452 165:400 166:246 167:294 168:500 169:119 170:393 171:15 172:1 189:227 190:547 192:5735 193:3717 194:3061 195:2204 196:911 198:3735 199:3287 200:4607 201:1008 202:7243 203:7410 204:3972 205:2096 206:2415 207:2882 208:2599 209:3601 210:2396 211:931 212:1279 213:1422 214:410 215:39 216:3964 217:1174 218:355 219:298 220:905 221:389 222:272 End of report Report Website: http://thyme.apnic.net