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 If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 31 Jul, 2004 Analysis Summary ---------------- BGP routing table entries examined: 143374 Prefixes after maximum aggregation: 85787 Unique aggregates announced to Internet: 68960 Total ASes present in the Internet Routing Table: 17698 Origin-only ASes present in the Internet Routing Table: 15364 Origin ASes announcing only one prefix: 7195 Transit ASes present in the Internet Routing Table: 2334 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 26 Prefixes from unregistered ASNs in the Routing Table: 3 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 19 Number of addresses announced to Internet: 1305828384 Equivalent to 77 /8s, 213 /16s and 92 /24s Percentage of available address space announced: 35.2 Percentage of allocated address space announced: 57.8 Percentage of available address space allocated: 60.9 Total number of prefixes smaller than registry allocations: 65854 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 27425 Total APNIC prefixes after maximum aggregation: 13952 Prefixes being announced from the APNIC address blocks: 25659 Unique aggregates announced from the APNIC address blocks: 14085 APNIC Region origin ASes present in the Internet Routing Table: 2085 APNIC Region origin ASes announcing only one prefix: 626 APNIC Region transit ASes present in the Internet Routing Table: 330 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 154002688 Equivalent to 9 /8s, 45 /16s and 229 /24s Percentage of available APNIC address space announced: 70.3 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 82091 Total ARIN prefixes after maximum aggregation: 50174 Prefixes being announced from the ARIN address blocks: 63697 Unique aggregates announced from the ARIN address blocks: 22078 ARIN Region origin ASes present in the Internet Routing Table: 9363 ARIN Region origin ASes announcing only one prefix: 3359 ARIN Region transit ASes present in the Internet Routing Table: 924 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 228293664 Equivalent to 13 /8s, 155 /16s and 124 /24s Percentage of available ARIN address space announced: 75.6 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 31744 - 33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 26468 Total RIPE prefixes after maximum aggregation: 18721 Prefixes being announced from the RIPE address blocks: 23261 Unique aggregates announced from the RIPE address blocks: 15476 RIPE Region origin ASes present in the Internet Routing Table: 5701 RIPE Region origin ASes announcing only one prefix: 3076 RIPE Region transit ASes present in the Internet Routing Table: 966 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 167833664 Equivalent to 10 /8s, 0 /16s and 240 /24s Percentage of available RIPE address space announced: 58.8 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 30720 - 31743, 33792 - 34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6183 Total LACNIC prefixes after maximum aggregation: 2260 Prefixes being announced from the LACNIC address blocks: 5902 Unique aggregates announced from the LACNIC address blocks: 3578 LACNIC Region origin ASes present in the Internet Routing Table: 387 LACNIC Region origin ASes announcing only one prefix: 114 LACNIC Region transit ASes present in the Internet Routing Table: 74 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 15449856 Equivalent to 0 /8s, 235 /16s and 191 /24s Percentage of available LACNIC address space announced: 46.0 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1204 Total AfriNIC prefixes after maximum aggregation: 680 Prefixes being announced from the AfriNIC address blocks: 821 Unique aggregates announced from the AfriNIC address blocks: 648 AfriNIC Region origin ASes present in the Internet Routing Table: 90 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 1913600 Equivalent to 0 /8s, 29 /16s and 51 /24s Percentage of available AfriNIC address space announced: 11.4 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 817 1056 589 Telstra Pty Ltd 4134 810 4092 150 Data Communications Bureau 4766 512 2896 269 Korea Internet Exchange for " 9583 493 39 105 Satyam Infoway Ltd., 4755 391 133 50 Videsh Sanchar Nigam Ltd. Aut 9443 357 70 80 Primus Telecommunications 2907 353 1840 327 SINET Japan 17676 341 5084 33 XTAGE CORPORATION 9929 327 159 31 China Netcom Corp. 17557 326 23 163 Pakistan Telecom 703 316 342 245 UUNET 2764 287 258 234 connect.com.au pty ltd 7474 266 269 204 Optus Communications Pty Ltd 9942 235 71 128 COMindico Australia 9800 227 370 64 CHINA UNICOM 4802 225 25 139 Wantree Development 17633 223 56 6 ASN for Shandong Provincial N 9498 222 49 50 BHARTI BT INTERNET LTD. 10036 202 18 183 C&M Communication Co. Ltd. 4837 195 2023 106 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1411 6855 981 AT&T 701 1296 8446 932 UUNET Technologies, Inc. 6347 951 390 100 SAVVIS Communications Corpora 1239 940 2875 627 Sprint 3356 885 10925 668 Level 3 Communications, LLC 4323 767 568 211 Time Warner Communications, I 18566 740 192 7 Covad Communications 6197 732 495 308 BellSouth Network Solutions, 209 615 3425 501 Qwest 721 569 20737 256 DLA Systems Automation Center 20115 567 377 292 Charter Communications 7843 513 673 128 Adelphia Corp. 852 511 1142 399 Telus Advanced Communications 7132 487 7913 369 Southwestern Bell Internet Se 6198 449 394 203 BellSouth Network Solutions, 2386 409 533 229 AT&T Data Communications Serv 22909 397 829 30 Comcast Cable Corporation 4355 391 323 101 EarthLink, Inc. 22773 391 780 62 Cox Communications, Inc. Atla 705 387 128 263 UUNET Technologies, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 648 2036 537 UUNET - Commercial IP service 3320 300 2468 237 Deutsche Telekom AG 3301 282 1098 271 TeliaNet Sweden 8220 279 433 266 COLT Internet - International 680 244 2025 239 DFN-IP service G-WiN 1257 216 747 185 SWIPnet Swedish IP Network 13083 216 51 8 Mannesmann Datenverarbeitung 3246 215 484 212 Song Networks 5515 200 842 146 Sonera Solution Autonomous Sy 8708 194 113 177 Romania Data Systems S.A. 3215 183 895 70 France Telecom Transpac 786 174 1794 174 The JANET IP Service 25186 172 156 114 France Telecom Transpac's Tra 6746 151 29 129 Dynamic Network Technologies, 719 150 288 102 LANLINK autonomous system 5400 146 207 120 BT Ignite European Backbone 3269 138 1131 64 TELECOM ITALIA 8866 132 15 14 Bulgarian Telecommunication C 3303 130 609 129 Swisscom Ltd 12302 128 18 32 MobiFon S.A. LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 11172 350 83 52 Servicios Alestra S.A de C.V 6140 332 137 63 ImpSat 8151 286 391 132 UniNet S.A. de C.V. 16814 202 13 10 NSS, S.A. 6147 187 86 20 Telefonica Del Peru 6505 134 90 92 Global One Communicaoes Ltda 11664 128 11 21 Keytech SA 6503 127 202 85 AVANTEL, S.A. 7303 119 55 18 Telecom Argentina Stet-France 11556 103 65 25 Cable-Wireless Panama 11992 91 9 29 Integrated Systems 6535 81 5 16 Chilesat Servicios Empresari 11311 81 7 19 Sinectis S.A. 14420 81 5 31 ANDINATEL S.A. 15311 75 19 37 Telefonica Empresas 5639 71 8 8 Telecommunications Services o 4270 70 18 9 Red de Interconexion Universi 14117 69 5 4 Telefonica del Sur S.A. 10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA 11340 67 5 36 Red Universitaria Nacional AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 252 632 219 The Internet Solution 5536 111 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 92 276 81 The Internetworking Company o 11845 42 9 11 Data Pro Business Online 20928 42 16 1 Noor Advanced Technologies AS 24835 31 18 6 RAYA Telecom - Egypt 9129 29 3 4 UUNET Kenya 14988 29 16 1 Botswana Telecommunications C 16637 29 9 22 Johnnic e-Ventures 6713 26 38 9 Itissalat Al-MAGHRIB 5713 25 125 23 Telkom SA Ltd 8524 24 2 7 AUCEGYPT Autonomous System 12455 23 4 2 Jambonet Autonomous system 10798 18 1 12 Standard Bank of South Africa 12258 15 3 10 Vodacom Internet Company 15706 15 4 2 Sudatel Internet Exchange Aut 8346 14 6 13 SONATEL-AS Autonomous System 15808 13 1 2 Communication Solutions Ltd i 17148 13 1 7 First National Bank Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6347 951 851 SAVVIS Communications Corpora 18566 740 733 Covad Communications 4134 810 660 Data Communications Bureau 4323 767 556 Time Warner Communications, I 6197 732 424 BellSouth Network Solutions, 9583 493 388 Satyam Infoway Ltd., 7843 513 385 Adelphia Corp. 22909 397 367 Comcast Cable Corporation 701 1296 364 UUNET Technologies, Inc. 5668 381 363 Century Telephone 4755 391 341 Videsh Sanchar Nigam Ltd. Aut 6467 370 337 E.Spire Communications, Inc. 27364 349 330 Armstrong Cable Services 22773 391 329 Cox Communications, Inc. Atla 1239 940 313 Sprint 721 569 313 DLA Systems Automation Center 17676 341 308 XTAGE CORPORATION 11172 350 298 Servicios Alestra S.A de C.V 9929 327 296 China Netcom Corp. 4355 391 290 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm 63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 156.154.16.0/22 7786 Lockheed Martin IMS 158.0.0.0/13 721 DLA Systems Automation Center 164.234.0.0/18 721 DLA Systems Automation Center 164.234.0.0/16 721 DLA Systems Automation Center 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 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 /9:3 /10:6 /11:15 /12:61 /13:127 /14:301 /15:532 /16:7928 /17:2132 /18:3722 /19:9607 /20:10119 /21:7459 /22:10421 /23:11924 /24:78403 /25:210 /26:189 /27:98 /28:37 /29:7 /30:49 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6347 730 951 SAVVIS Communications Corpora 18566 723 740 Covad Communications 6197 552 732 BellSouth Network Solutions, 7018 540 1411 AT&T 3356 501 885 Level 3 Communications, LLC 702 400 648 UUNET - Commercial IP service 1239 369 940 Sprint 701 366 1296 UUNET Technologies, Inc. 9583 340 493 Satyam Infoway Ltd., 27364 336 349 Armstrong Cable Services 5668 333 381 Century Telephone 6198 331 449 BellSouth Network Solutions, 4766 317 512 Korea Internet Exchange for " 20115 300 567 Charter Communications 6467 269 370 E.Spire Communications, Inc. 9929 259 327 China Netcom Corp. 14824 254 278 NewSouth Communications Corp. 3320 248 300 Deutsche Telekom AG 13609 248 290 Choice One Communications Inc 25844 245 245 Skadden, Arps, Slate, Meagher Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:1 12:836 13:1 15:5 16:2 17:3 20:9 24:735 32:66 33:2 38:75 40:54 44:4 55:1 56:3 57:16 60:5 61:436 62:509 63:1895 64:2166 65:2047 66:2752 67:349 68:509 69:662 70:64 80:536 81:352 82:191 83:121 84:4 128:177 129:171 130:85 131:183 132:23 134:179 135:17 136:176 137:55 138:169 139:37 140:165 141:105 142:120 143:59 144:100 145:42 146:286 147:93 148:418 149:110 150:90 151:69 152:162 153:66 154:2 155:128 156:57 157:65 158:138 159:150 160:54 161:67 162:387 163:77 164:185 165:164 166:111 167:218 168:239 169:113 170:284 171:8 192:5574 193:2834 194:2078 195:1412 196:580 198:3652 199:3259 200:3614 201:10 202:4788 203:5682 204:3108 205:2087 206:2265 207:2503 208:2175 209:3053 210:1407 211:576 212:1006 213:1195 214:78 215:29 216:3770 217:983 218:171 219:121 220:227 221:29 222:119 End of report