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 a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 20:00 +10GMT Fri 04 Jan, 2002 Analysis Summary ---------------- BGP routing table entries examined: 106715 Prefixes after maximum aggregation: 71378 Unique aggregates announced to Internet: 51984 Total ASes present in the Internet Routing Table: 12269 Origin-only ASes present in the Internet Routing Table: 10659 Origin ASes announcing only one prefix: 4619 Transit ASes present in the Internet Routing Table: 1610 Transit-only ASes present in the Internet Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 9 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 15 Number of addresses announced to Internet: 1163873544 Equivalent to 69 /8s, 95 /16s and 77 /24s Percentage of available address space announced: 31.4 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 71507 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 16569 Total APNIC prefixes after maximum aggregation: 10381 Prefixes being announced from the APNIC address blocks: 15196 Unique aggregates announced from the APNIC address blocks: 9754 APNIC Region origin ASes present in the Internet Routing Table: 1417 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 244 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 78241984 Equivalent to 4 /8s, 169 /16s and 224 /24s Percentage of available APNIC address space announced: 57.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72289 Total ARIN prefixes after maximum aggregation: 47115 Prefixes being announced from the ARIN address blocks: 51975 Unique aggregates announced from the ARIN address blocks: 16922 ARIN Region origin ASes present in the Internet Routing Table: 7271 ARIN Region origin ASes announcing only one prefix: 2256 ARIN Region transit ASes present in the Internet Routing Table: 725 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 181949896 Equivalent to 10 /8s, 216 /16s and 85 /24s Percentage of available ARIN address space announced: 67.8 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17850 Total RIPE prefixes after maximum aggregation: 13882 Prefixes being announced from the RIPE address blocks: 14557 Unique aggregates announced from the RIPE address blocks: 9718 RIPE Region origin ASes present in the Internet Routing Table: 3529 RIPE Region origin ASes announcing only one prefix: 1903 RIPE Region transit ASes present in the Internet Routing Table: 631 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 105295872 Equivalent to 6 /8s, 70 /16s and 176 /24s Percentage of available RIPE address space announced: 69.7 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1343 1259 985 Telstra Pty Ltd 703 400 348 307 UUNET Technologies, Inc. 2764 399 378 373 connect.com.au pty ltd 2907 390 1891 360 SINET Japan 4755 315 115 88 Videsh Sanchar Nigam Ltd. Aut 7474 310 285 202 Optus Communications Pty Ltd 4134 268 1874 98 Data Communications Bureau 4766 189 1396 139 Korea Internet Exchange for " 17557 175 13 86 Pakistan Telecom 9443 173 45 69 Primus Telecommunications 1659 165 924 34 Taiwan Academic Network (TANe 9583 159 32 5 Satyam Infoway Ltd., 4740 149 34 123 OzEmail ISP 4812 143 288 36 China Telecom (Group) - Shang 9768 143 381 87 Korea Telecom 7657 126 22 85 The Internet Group Limited 17676 121 1920 7 XTAGE CORPORATION 4780 117 186 40 Digital United Inc. 4713 115 894 102 NTT Communications Corporatio 9800 112 194 21 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1089 2669 857 UUNET Technologies, Inc. 3301 401 925 353 TeliaNet Sweden 1257 253 489 250 SWIPnet Swedish IP Network 680 233 2149 231 DFN-IP service G-WiN 3215 233 562 152 France Telecom / &Equant 5515 216 705 176 Sonera Finland Autonomous Sys 3320 202 1961 170 Deutsche Telekom AG 786 180 1873 180 The JANET IP Service 719 164 289 118 LANLINK autonomous system 5400 148 60 85 Concert European Core Network 8708 145 20 139 Romania Data Systems S.A. 5549 140 78 64 Nextra Deutschland GmbH + Co. 2856 136 777 125 BTnet UK Regional network 3303 134 575 124 Swisscom Ltd 3269 115 663 70 TELECOM ITALIA 12302 111 7 35 MobiFon S.A. 517 109 230 107 KPNQwest Germany GmbH 8297 108 31 62 Teleglobe Autonomous System i 1290 96 396 71 PSINet UK Ltd. 5511 95 192 79 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2137 8786 1519 UUNET Technologies, Inc. 7018 1121 7412 876 AT&T 3967 902 359 427 Exodus Communication 1 869 8408 645 BBN Planet 3908 776 1639 479 Supernet, Inc. 1239 766 3180 600 Sprint 8010 714 62 11 PublicNet Communications, Inc 7046 688 822 439 UUNET Technologies, Inc. 4323 585 364 201 Time Warner Communications, I 852 580 978 384 Telus Advanced Communications 690 533 76 318 Merit Network 209 512 1861 296 Qwest 705 472 349 296 UUNET Technologies, Inc. 2914 459 2210 430 Verio, Inc. 3549 403 836 201 Global Crossing 7132 402 470 168 Southwestern Bell Internet Se 2149 396 230 333 Performance Systems, Inc. 3561 378 2253 328 Cable & Wireless USA 4151 363 704 16 USDA 577 352 588 220 Bell Advanced Communications Global Per AS Maximum Aggr summary ---------------------------------- ASN Net Savings Description 8010 703 PublicNet Communications, Inc 3967 475 Exodus Communication 4323 384 Time Warner Communications, I 1221 358 Telstra Pty Ltd 4151 347 USDA 3908 297 Supernet, Inc. 11371 271 Rhythms NetConnections 7046 249 UUNET Technologies, Inc. 7018 245 AT&T 6347 237 SAVVIS Communications Corpora 7132 234 Southwestern Bell Internet Se 702 232 UUNET Technologies, Inc. 4755 227 Videsh Sanchar Nigam Ltd. Aut 1 224 BBN Planet 209 216 Qwest 690 215 Merit Network 3549 202 Global Crossing 4355 199 EarthLink, Inc. 852 196 Telus Advanced Communications 6517 196 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 65021 PRIVATE 203.75.135.0/27 3462 Data Communication B 65021 PRIVATE 203.75.210.129/32 3462 Data Communication B 65021 PRIVATE 203.75.210.130/32 3462 Data Communication B 65021 PRIVATE 203.75.210.131/32 3462 Data Communication B 65021 PRIVATE 203.75.210.132/32 3462 Data Communication B 65021 PRIVATE 203.75.232.0/27 3462 Data Communication B 65021 PRIVATE 203.75.232.160/27 3462 Data Communication B 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK Ltd. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:7 /11:11 /12:37 /13:91 /14:230 /15:392 /16:7059 /17:1364 /18:2468 /19:7184 /20:6299 /21:4734 /22:7150 /23:8845 /24:59937 /25:233 /26:240 /27:150 /28:95 /29:79 /30:72 /31:0 /32:14 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1365 2137 UUNET Technologies, Inc. 1221 1197 1343 Telstra Pty Ltd 3967 719 902 Exodus Communication 702 706 1089 UUNET Technologies, Inc. 8010 698 714 PublicNet Communications, Inc 7018 584 1121 AT&T 3908 534 776 Supernet, Inc. 690 530 533 Merit Network 7046 523 688 UUNET Technologies, Inc. 4323 495 585 Time Warner Communications, I 1239 444 766 Sprint 1 443 869 BBN Planet 852 369 580 Telus Advanced Communications 705 355 472 UUNET Technologies, Inc. 2764 353 399 connect.com.au pty ltd 209 338 512 Qwest 703 324 400 UUNET Technologies, Inc. 4151 316 363 USDA 2149 298 396 Performance Systems, Inc. 7474 275 310 Optus Communications Pty Ltd Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:444 13:10 15:2 17:5 20:1 24:778 25:1 32:73 38:13 40:4 43:1 44:2 52:1 53:2 57:13 61:210 62:160 63:1912 64:1483 65:968 66:757 67:23 68:10 80:132 128:62 129:110 130:25 131:41 132:14 133:2 134:107 135:10 136:47 137:107 138:62 139:30 140:103 141:57 142:53 143:43 144:57 145:12 146:200 147:94 148:155 149:88 150:39 151:37 152:379 153:34 154:8 155:81 156:82 157:121 158:70 159:78 160:26 161:54 162:85 163:121 164:119 165:103 166:202 167:160 168:114 169:47 170:299 171:2 191:1 192:5330 193:2054 194:2063 195:853 196:430 198:3703 199:3293 200:2410 201:1 202:2854 203:4490 204:3254 205:2178 206:2591 207:2625 208:2605 209:2960 210:539 211:152 212:882 213:550 214:9 215:17 216:2937 217:395 218:12 End of report
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Routing Table Analysis