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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Aug 22 20:06:46 CEST 2003
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 at lists.apnic.net If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127121 Prefixes after maximum aggregation: 79841 Unique aggregates announced to Internet: 61312 Total ASes present in the Internet Routing Table: 15709 Origin-only ASes present in the Internet Routing Table: 13617 Origin ASes announcing only one prefix: 6207 Transit ASes present in the Internet Routing Table: 2092 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 26 Illegal AS announcements present in the Routing Table: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 15 Number of addresses announced to Internet: 1239819744 Equivalent to 73 /8s, 230 /16s and 37 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56355 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22262 Total APNIC prefixes after maximum aggregation: 12690 Prefixes being announced from the APNIC address blocks: 20697 Unique aggregates announced from the APNIC address blocks: 12390 APNIC Region origin ASes present in the Internet Routing Table: 1887 APNIC Region origin ASes announcing only one prefix: 547 APNIC Region transit ASes present in the Internet Routing Table: 317 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 120830336 Equivalent to 7 /8s, 51 /16s and 185 /24s Percentage of available APNIC address space announced: 65.1 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77318 Total ARIN prefixes after maximum aggregation: 48500 Prefixes being announced from the ARIN address blocks: 55488 Unique aggregates announced from the ARIN address blocks: 17259 ARIN Region origin ASes present in the Internet Routing Table: 8597 ARIN Region origin ASes announcing only one prefix: 2954 ARIN Region transit ASes present in the Internet Routing Table: 826 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 195959040 Equivalent to 11 /8s, 174 /16s and 25 /24s Percentage of available ARIN address space announced: 73.0 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 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, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 22335 Total RIPE prefixes after maximum aggregation: 16396 Prefixes being announced from the RIPE address blocks: 18940 Unique aggregates announced from the RIPE address blocks: 12714 RIPE Region origin ASes present in the Internet Routing Table: 4804 RIPE Region origin ASes announcing only one prefix: 2609 RIPE Region transit ASes present in the Internet Routing Table: 850 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 134867520 Equivalent to 8 /8s, 9 /16s and 234 /24s Percentage of available RIPE address space announced: 73.1 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5205 Total LACNIC prefixes after maximum aggregation: 2255 Prefixes being announced from the LACNIC address blocks: 4721 Unique aggregates announced from the LACNIC address blocks: 3132 LACNIC Region origin ASes present in the Internet Routing Table: 345 LACNIC Region origin ASes announcing only one prefix: 97 LACNIC Region transit ASes present in the Internet Routing Table: 70 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 13035264 Equivalent to 0 /8s, 198 /16s and 231 /24s Percentage of available LACNIC address space announced: 38.8 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1036 1037 726 Telstra Pty Ltd 4755 405 135 74 Videsh Sanchar Nigam Ltd. Aut 2907 374 1911 349 SINET Japan 703 341 372 273 UUNET 4134 331 2210 114 Data Communications Bureau 17557 308 26 138 Pakistan Telecom 2764 301 323 269 connect.com.au pty ltd 7474 264 307 204 Optus Communications Pty Ltd 17676 253 3894 22 XTAGE CORPORATION 9583 242 37 21 Satyam Infoway Ltd., 3786 239 777 205 DACOM Corporation 4766 239 2461 171 Korea Internet Exchange for " 9800 198 326 56 CHINA UNICOM 9498 173 15 28 BHARTI BT INTERNET LTD. 9443 172 56 78 Primus Telecommunications 4538 170 1538 21 China Education and Research 9929 169 153 33 China Netcom Corp. 17642 158 41 119 RequestDSL BGP AS# for Sydney 9942 141 69 101 COMindico Australia 9238 140 9 21 TATA ISP ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1490 8782 1047 UUNET Technologies, Inc. 7018 1376 7171 974 AT&T 3908 921 1589 495 Supernet, Inc. 1239 898 3032 639 Sprint 189 672 451 331 Genuity 18566 665 160 8 Covad Communications 4323 624 551 179 Time Warner Communications, I 6197 569 387 244 BellSouth Network Solutions, 7843 549 408 199 Adelphia Corp. 852 523 1124 415 Telus Advanced Communications 209 518 2145 299 Qwest 6198 513 277 197 BellSouth Network Solutions, 705 484 193 303 UUNET Technologies, Inc. 3356 483 10661 399 Level 3 Communications, LLC 1 476 1078 307 GENUITY 20115 473 196 285 Charter Communications 7132 410 6608 240 Southwestern Bell Internet Se 690 408 59 275 Merit Network 4355 404 339 109 EarthLink, Inc. 2386 379 523 197 AT&T Data Communications Serv RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 736 2141 611 UUNET - Commercial IP service 3301 289 1168 277 TeliaNet Sweden 3320 264 1987 224 Deutsche Telekom AG 8220 243 431 232 COLT Internet - International 1257 242 312 191 SWIPnet Swedish IP Network 680 232 2054 229 DFN-IP service G-WiN 3215 214 752 121 France Telecom Transpac 719 196 307 125 LANLINK autonomous system 5515 185 779 148 Sonera Solution Autonomous Sy 786 179 1874 179 The JANET IP Service 5400 175 175 127 BT Ignite European Backbone 8708 159 111 155 Romania Data Systems S.A. 3303 140 540 137 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 3246 121 360 119 Song Networks 3269 117 821 64 TELECOM ITALIA 2856 112 1295 103 BTnet UK Regional network 3352 111 812 33 Ibernet, Internet Access Netw 2647 101 4129 45 SITA 6746 88 12 75 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 316 103 114 ImpSat 7303 232 38 61 Telecom Argentina Stet-France 8151 221 334 116 UniNet S.A. de C.V. 11172 178 77 43 Servicios Alestra S.A de C.V 16814 152 10 18 NSS, S.A. 6503 133 205 94 AVANTEL, S.A. 10620 127 8 28 TVCABLE BOGOTA 11992 88 8 37 Integrated Systems 6147 84 70 21 Telefonica Del Peru 8065 80 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 75 14 38 Telefonica Empresas 11830 74 6 29 Instituto Costarricense de El 1916 73 306 43 Fundacao de Amparo a Pesquisa 4270 68 18 9 Red de Interconexion Universi 7927 67 6 40 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 7984 59 12 40 Global One Colombia 13999 56 36 8 Mega Cable S.A. de C.V. 4926 55 3 46 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 665 657 Covad Communications 4323 624 445 Time Warner Communications, I 3908 921 426 Supernet, Inc. 7018 1376 402 AT&T 7843 549 350 Adelphia Corp. 189 672 341 Genuity 4755 405 331 Videsh Sanchar Nigam Ltd. Aut 6197 569 325 BellSouth Network Solutions, 11305 358 320 Interland Incorporated 6198 513 316 BellSouth Network Solutions, 1221 1036 310 Telstra Pty Ltd 4355 404 295 EarthLink, Inc. 27364 317 294 Armstrong Cable Services 6347 359 280 SAVVIS Communications Corpora 22909 286 269 Comcast Cable Corporation 1239 898 259 Sprint 25844 257 255 Skadden, Arps, Slate, Meagher 17676 253 231 XTAGE CORPORATION 22773 244 224 Cox Communications, Inc. Atla 9583 242 221 Satyam Infoway Ltd., List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.153.136.0/21 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.228.80.0/24 30122 INTERNET SOFTWARE CONSORTIUM, Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:4 /10:6 /11:12 /12:55 /13:98 /14:262 /15:474 /16:7415 /17:1736 /18:3070 /19:8422 /20:8703 /21:6355 /22:9407 /23:10827 /24:69720 /25:129 /26:167 /27:130 /28:24 /29:12 /30:48 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 659 665 Covad Communications 189 587 672 Genuity 3908 581 921 Supernet, Inc. 7018 479 1376 AT&T 702 448 736 UUNET - Commercial IP service 701 443 1490 UUNET Technologies, Inc. 6197 434 569 BellSouth Network Solutions, 6198 405 513 BellSouth Network Solutions, 690 368 408 Merit Network 20115 322 473 Charter Communications 27364 311 317 Armstrong Cable Services 1239 302 898 Sprint 10753 298 312 XCOM Technologies, INC. 11305 281 358 Interland Incorporated 7843 275 549 Adelphia Corp. 25844 257 257 Skadden, Arps, Slate, Meagher 4355 217 404 EarthLink, Inc. 3356 212 483 Level 3 Communications, LLC 209 208 518 Qwest 705 207 484 UUNET Technologies, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:702 13:1 15:4 16:1 17:3 20:6 24:848 25:1 32:85 38:45 40:23 44:2 55:1 57:14 61:278 62:393 63:1852 64:1760 65:2005 66:2684 67:247 68:391 69:250 80:403 81:125 82:10 128:113 129:171 130:61 131:80 132:13 134:143 135:7 136:188 137:117 138:120 139:45 140:142 141:117 142:90 143:45 144:89 145:13 146:266 147:61 148:292 149:73 150:120 151:68 152:217 153:57 154:4 155:123 156:59 157:48 158:118 159:135 160:45 161:75 162:407 163:78 164:133 165:141 166:96 167:313 168:179 169:95 170:325 171:9 192:5343 193:2472 194:1976 195:1182 196:469 198:3515 199:2757 200:2928 202:3941 203:5250 204:2982 205:2050 206:2343 207:2501 208:2543 209:2859 210:891 211:299 212:992 213:917 214:16 215:22 216:3274 217:688 218:98 219:73 220:102 221:10 End of report
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