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 17 Jul, 2004 Analysis Summary ---------------- BGP routing table entries examined: 142439 Prefixes after maximum aggregation: 85533 Unique aggregates announced to Internet: 68001 Total ASes present in the Internet Routing Table: 17594 Origin-only ASes present in the Internet Routing Table: 15254 Origin ASes announcing only one prefix: 7148 Transit ASes present in the Internet Routing Table: 2340 Transit-only ASes present in the Internet Routing Table: 70 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: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1305064604 Equivalent to 77 /8s, 201 /16s and 180 /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: 65451 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 27295 Total APNIC prefixes after maximum aggregation: 13989 Prefixes being announced from the APNIC address blocks: 25516 Unique aggregates announced from the APNIC address blocks: 13954 APNIC Region origin ASes present in the Internet Routing Table: 2065 APNIC Region origin ASes announcing only one prefix: 622 APNIC Region transit ASes present in the Internet Routing Table: 331 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 153246656 Equivalent to 9 /8s, 34 /16s and 91 /24s Percentage of available APNIC address space announced: 69.9 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: 81443 Total ARIN prefixes after maximum aggregation: 50032 Prefixes being announced from the ARIN address blocks: 63209 Unique aggregates announced from the ARIN address blocks: 21963 ARIN Region origin ASes present in the Internet Routing Table: 9321 ARIN Region origin ASes announcing only one prefix: 3339 ARIN Region transit ASes present in the Internet Routing Table: 914 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 227454496 Equivalent to 13 /8s, 142 /16s and 174 /24s Percentage of available ARIN address space announced: 75.3 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: 26333 Total RIPE prefixes after maximum aggregation: 18587 Prefixes being announced from the RIPE address blocks: 23122 Unique aggregates announced from the RIPE address blocks: 14755 RIPE Region origin ASes present in the Internet Routing Table: 5665 RIPE Region origin ASes announcing only one prefix: 3055 RIPE Region transit ASes present in the Internet Routing Table: 980 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 169022912 Equivalent to 10 /8s, 19 /16s and 21 /24s Percentage of available RIPE address space announced: 59.3 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: 6172 Total LACNIC prefixes after maximum aggregation: 2244 Prefixes being announced from the LACNIC address blocks: 5843 Unique aggregates announced from the LACNIC address blocks: 3580 LACNIC Region origin ASes present in the Internet Routing Table: 381 LACNIC Region origin ASes announcing only one prefix: 110 LACNIC Region transit ASes present in the Internet Routing Table: 73 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 15305728 Equivalent to 0 /8s, 233 /16s and 140 /24s Percentage of available LACNIC address space announced: 45.6 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1193 Total AfriNIC prefixes after maximum aggregation: 681 Prefixes being announced from the AfriNIC address blocks: 811 Unique aggregates announced from the AfriNIC address blocks: 640 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 22 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: 15 Number of AfriNIC addresses announced to Internet: 1901568 Equivalent to 0 /8s, 29 /16s and 4 /24s Percentage of available AfriNIC address space announced: 11.3 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 821 1057 591 Telstra Pty Ltd 4134 808 4078 148 Data Communications Bureau 4766 498 2895 263 Korea Internet Exchange for " 9583 492 40 106 Satyam Infoway Ltd., 4755 402 134 58 Videsh Sanchar Nigam Ltd. Aut 9443 353 69 78 Primus Telecommunications 2907 351 1840 325 SINET Japan 17676 341 5084 33 XTAGE CORPORATION 9929 327 157 32 China Netcom Corp. 703 320 343 249 UUNET 17557 320 22 164 Pakistan Telecom 2764 289 258 236 connect.com.au pty ltd 7474 265 269 205 Optus Communications Pty Ltd 9942 230 71 128 COMindico Australia 4802 226 25 141 Wantree Development 9800 225 369 62 CHINA UNICOM 9498 220 48 50 BHARTI BT INTERNET LTD. 17633 202 54 8 ASN for Shandong Provincial N 10036 198 18 179 C&M Communication Co. Ltd. 4837 191 2019 105 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1422 6877 990 AT&T 701 1299 8442 930 UUNET Technologies, Inc. 6347 963 396 102 SAVVIS Communications Corpora 1239 939 2889 631 Sprint 3356 893 10932 674 Level 3 Communications, LLC 4323 740 570 209 Time Warner Communications, I 18566 726 192 8 Covad Communications 6197 717 527 281 BellSouth Network Solutions, 209 610 3435 499 Qwest 20115 566 376 291 Charter Communications 7843 515 669 130 Adelphia Corp. 6198 512 396 214 BellSouth Network Solutions, 852 510 1142 398 Telus Advanced Communications 7132 478 7889 362 Southwestern Bell Internet Se 721 474 15394 339 DLA Systems Automation Center 2386 407 533 227 AT&T Data Communications Serv 22909 399 828 23 Comcast Cable Corporation 4355 391 323 101 EarthLink, Inc. 705 388 128 264 UUNET Technologies, Inc. 376 385 359 112 Reseau Interordinateurs Scien RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 650 2039 542 UUNET - Commercial IP service 3320 299 2463 239 Deutsche Telekom AG 3301 282 1098 271 TeliaNet Sweden 8220 277 433 264 COLT Internet - International 1257 251 747 186 SWIPnet Swedish IP Network 680 244 2025 239 DFN-IP service G-WiN 13083 216 51 8 Mannesmann Datenverarbeitung 3246 213 479 210 Song Networks 5515 200 842 146 Sonera Solution Autonomous Sy 8708 191 112 177 Romania Data Systems S.A. 3215 182 895 70 France Telecom Transpac 25186 172 156 114 France Telecom Transpac's Tra 786 171 1778 171 The JANET IP Service 6746 158 29 128 Dynamic Network Technologies, 719 150 288 102 LANLINK autonomous system 5400 145 207 120 BT Ignite European Backbone 3269 134 1099 64 TELECOM ITALIA 3303 130 609 129 Swisscom Ltd 8866 130 14 11 Bulgarian Telecommunication C 12302 128 18 32 MobiFon S.A. LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 11172 354 96 56 Servicios Alestra S.A de C.V 6140 334 140 65 ImpSat 8151 276 389 128 UniNet S.A. de C.V. 16814 203 13 7 NSS, S.A. 6147 186 86 20 Telefonica Del Peru 6505 134 90 92 Global One Communicaoes Ltda 6503 129 202 87 AVANTEL, S.A. 7303 118 54 17 Telecom Argentina Stet-France 11992 91 9 29 Integrated Systems 11556 87 57 24 Cable-Wireless Panama 6535 81 5 16 Chilesat Servicios Empresari 14420 79 5 29 ANDINATEL S.A. 15311 75 19 37 Telefonica Empresas 11311 73 7 18 Sinectis S.A. 14535 72 6 5 Techtel S.A. 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 91 276 80 The Internetworking Company o 11845 39 9 11 Data Pro Business Online 20928 35 16 1 Noor Advanced Technologies AS 24835 31 18 6 RAYA Telecom - Egypt 16637 29 9 23 Johnnic e-Ventures 6713 26 38 9 Itissalat Al-MAGHRIB 9129 26 3 4 UUNET Kenya 5713 25 125 23 Telkom SA Ltd 8524 25 2 4 AUCEGYPT Autonomous System 14988 25 16 1 Botswana Telecommunications C 12455 23 4 2 Jambonet Autonomous system 10798 18 1 12 Standard Bank of South Africa 15706 17 4 4 Sudatel Internet Exchange Aut 12258 15 3 10 Vodacom Internet Company 8346 13 6 12 SONATEL-AS Autonomous System 17148 13 1 7 First National Bank 2609 12 26 4 Tunisia BackBone AS Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6347 963 861 SAVVIS Communications Corpora 18566 726 718 Covad Communications 4134 808 660 Data Communications Bureau 4323 740 531 Time Warner Communications, I 6197 717 436 BellSouth Network Solutions, 9583 492 386 Satyam Infoway Ltd., 7843 515 385 Adelphia Corp. 22909 399 376 Comcast Cable Corporation 701 1299 369 UUNET Technologies, Inc. 5668 381 363 Century Telephone 27364 379 359 Armstrong Cable Services 4755 402 344 Videsh Sanchar Nigam Ltd. Aut 6467 366 334 E.Spire Communications, Inc. 22773 383 327 Cox Communications, Inc. Atla 1239 939 308 Sprint 17676 341 308 XTAGE CORPORATION 6198 512 298 BellSouth Network Solutions, 11172 354 298 Servicios Alestra S.A de C.V 9929 327 295 China Netcom Corp. 4355 391 290 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm 18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm 18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm 18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom 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 192.145.251.0/24 17832 National Computeriztion Agenc 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 /8:19 /9:3 /10:6 /11:15 /12:61 /13:127 /14:302 /15:528 /16:7898 /17:2113 /18:3690 /19:9553 /20:10041 /21:7377 /22:10326 /23:11882 /24:77846 /25:222 /26:202 /27:108 /28:28 /29:15 /30:67 /31:0 /32:10 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6347 742 963 SAVVIS Communications Corpora 18566 709 726 Covad Communications 6197 545 717 BellSouth Network Solutions, 7018 543 1422 AT&T 3356 501 893 Level 3 Communications, LLC 702 399 650 UUNET - Commercial IP service 6198 381 512 BellSouth Network Solutions, 1239 375 939 Sprint 701 370 1299 UUNET Technologies, Inc. 27364 366 379 Armstrong Cable Services 9583 337 492 Satyam Infoway Ltd., 5668 334 381 Century Telephone 4766 316 498 Korea Internet Exchange for " 20115 300 566 Charter Communications 6467 266 366 E.Spire Communications, Inc. 9929 259 327 China Netcom Corp. 14824 253 277 NewSouth Communications Corp. 3320 248 299 Deutsche Telekom AG 13609 245 288 Choice One Communications Inc 25844 245 245 Skadden, Arps, Slate, Meagher Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:833 13:1 15:5 16:2 17:3 20:7 24:760 32:65 33:2 38:74 40:54 44:4 55:1 56:3 57:16 60:4 61:443 62:506 63:1869 64:2067 65:2034 66:2723 67:330 68:502 69:643 70:64 80:576 81:344 82:187 83:107 84:6 128:145 129:171 130:80 131:183 132:23 133:1 134:178 135:17 136:178 137:54 138:170 139:35 140:166 141:106 142:119 143:60 144:102 145:42 146:288 147:88 148:417 149:110 150:93 151:71 152:160 153:64 154:2 155:148 156:57 157:63 158:139 159:148 160:52 161:66 162:382 163:78 164:186 165:164 166:109 167:216 168:231 169:110 170:284 171:8 192:5557 193:2824 194:2066 195:1384 196:575 198:3644 199:3099 200:3598 201:9 202:4733 203:5648 204:3121 205:2091 206:2262 207:2508 208:2193 209:3052 210:1453 211:573 212:996 213:1189 214:70 215:30 216:3755 217:973 218:166 219:119 220:227 221:31 222:98 End of report