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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 02 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128003
Prefixes after maximum aggregation: 80072
Unique aggregates announced to Internet: 61823
Total ASes present in the Internet Routing Table: 15890
Origin-only ASes present in the Internet Routing Table: 13784
Origin ASes announcing only one prefix: 6264
Transit ASes present in the Internet Routing Table: 2106
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1227838756
Equivalent to 73 /8s, 47 /16s and 85 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56586
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22760
Total APNIC prefixes after maximum aggregation: 12822
Prefixes being announced from the APNIC address blocks: 21152
Unique aggregates announced from the APNIC address blocks: 12427
APNIC Region origin ASes present in the Internet Routing Table: 1900
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 123052288
Equivalent to 7 /8s, 85 /16s and 161 /24s
Percentage of available APNIC address space announced: 66.3
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: 77172
Total ARIN prefixes after maximum aggregation: 48368
Prefixes being announced from the ARIN address blocks: 54908
Unique aggregates announced from the ARIN address blocks: 17255
ARIN Region origin ASes present in the Internet Routing Table: 8702
ARIN Region origin ASes announcing only one prefix: 3001
ARIN Region transit ASes present in the Internet Routing Table: 844
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197506848
Equivalent to 11 /8s, 197 /16s and 183 /24s
Percentage of available ARIN address space announced: 73.6
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
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: 22643
Total RIPE prefixes after maximum aggregation: 16603
Prefixes being announced from the RIPE address blocks: 19154
Unique aggregates announced from the RIPE address blocks: 12926
RIPE Region origin ASes present in the Internet Routing Table: 4874
RIPE Region origin ASes announcing only one prefix: 2617
RIPE Region transit ASes present in the Internet Routing Table: 853
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136957504
Equivalent to 8 /8s, 41 /16s and 206 /24s
Percentage of available RIPE address space announced: 74.2
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: 5423
Total LACNIC prefixes after maximum aggregation: 2279
Prefixes being announced from the LACNIC address blocks: 4929
Unique aggregates announced from the LACNIC address blocks: 3281
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 101
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: 13306368
Equivalent to 0 /8s, 203 /16s and 10 /24s
Percentage of available LACNIC address space announced: 39.7
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 969 1109 686 Telstra Pty Ltd
4755 386 133 74 Videsh Sanchar Nigam Ltd. Aut
2907 375 1879 349 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 296 290 259 connect.com.au pty ltd
17557 291 21 142 Pakistan Telecom
9583 275 38 26 Satyam Infoway Ltd.,
17676 271 3996 32 XTAGE CORPORATION
7474 261 305 207 Optus Communications Pty Ltd
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9929 190 160 36 China Netcom Corp.
9942 190 69 112 COMindico Australia
9443 183 58 83 Primus Telecommunications
9498 183 20 17 BHARTI BT INTERNET LTD.
4538 180 1682 22 China Education and Research
4739 141 58 130 Commerical Internet eXchange
17642 140 39 104 RequestDSL BGP AS# for Sydney
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1459 8703 1015 UUNET Technologies, Inc.
7018 1401 7141 974 AT&T
6197 980 443 247 BellSouth Network Solutions,
3908 922 1574 493 Supernet, Inc.
1239 908 3028 652 Sprint
18566 696 176 8 Covad Communications
4323 673 575 196 Time Warner Communications, I
3356 586 10796 489 Level 3 Communications, LLC
6198 559 330 195 BellSouth Network Solutions,
7843 531 472 136 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 504 2127 291 Qwest
7066 499 205 263 Virginia Polytechnic Institut
20115 471 203 293 Charter Communications
690 411 59 276 Merit Network
705 409 185 250 UUNET Technologies, Inc.
4355 395 334 109 EarthLink, Inc.
2386 376 507 195 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 352 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 709 2120 588 UUNET - Commercial IP service
3301 294 1169 283 TeliaNet Sweden
3320 280 2005 240 Deutsche Telekom AG
8220 257 435 246 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5400 186 174 134 BT Ignite European Backbone
5515 186 779 148 Sonera Solution Autonomous Sy
3215 183 753 102 France Telecom Transpac
786 179 1874 179 The JANET IP Service
8708 157 110 153 Romania Data Systems S.A.
3303 148 540 141 Swisscom Ltd
3246 127 376 125 Song Networks
12302 127 18 34 MobiFon S.A.
3269 119 853 65 TELECOM ITALIA
2856 113 1293 104 BTnet UK Regional network
25186 108 128 75 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 341 104 101 ImpSat
8151 235 367 123 UniNet S.A. de C.V.
7303 217 40 55 Telecom Argentina Stet-France
11172 187 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
10620 130 8 26 TVCABLE BOGOTA
6503 129 189 93 AVANTEL, S.A.
11340 100 2 33 Red Universitaria Nacional
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6505 81 84 70 Global One Communicaoes Ltda
6535 75 5 18 Chilesat Servicios Empresari
11992 75 8 35 Integrated Systems
15311 75 14 38 Telefonica Empresas
11830 74 22 29 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6197 980 733 BellSouth Network Solutions,
18566 696 688 Covad Communications
4323 673 477 Time Warner Communications, I
3908 922 429 Supernet, Inc.
7018 1401 427 AT&T
7843 531 395 Adelphia Corp.
6198 559 364 BellSouth Network Solutions,
4755 386 312 Videsh Sanchar Nigam Ltd. Aut
5668 307 292 Century Telephone
27364 314 291 Armstrong Cable Services
4355 395 286 EarthLink, Inc.
1221 969 283 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 352 272 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 908 256 Sprint
22773 287 251 Cox Communications, Inc. Atla
9583 275 249 Satyam Infoway Ltd.,
376 361 246 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65093 PRIVATE 148.170.28.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.32.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.92.0/22 7991 Savvis Communication
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:268 /15:470 /16:7438 /17:1762 /18:3145
/19:8469 /20:8839 /21:6520 /22:9319 /23:10704 /24:70244
/25:149 /26:205 /27:172 /28:20 /29:9 /30:53
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6197 840 980 BellSouth Network Solutions,
18566 690 696 Covad Communications
3908 583 922 Supernet, Inc.
7018 503 1401 AT&T
701 437 1459 UUNET Technologies, Inc.
6198 435 559 BellSouth Network Solutions,
702 424 709 UUNET - Commercial IP service
7066 394 499 Virginia Polytechnic Institut
690 371 411 Merit Network
20115 316 471 Charter Communications
1239 313 908 Sprint
27364 308 314 Armstrong Cable Services
3356 279 586 Level 3 Communications, LLC
5668 273 307 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 214 395 EarthLink, Inc.
7843 212 531 Adelphia Corp.
209 200 504 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:707 13:1 15:4 16:1 17:3
20:6 24:829 25:1 32:84 38:48 40:23
43:1 44:2 55:1 57:14 61:315 62:421
63:1882 64:1761 65:2054 66:2213 67:336 68:423
69:268 80:418 81:161 82:17 128:140 129:167
130:62 131:81 132:18 133:1 134:165 135:9
136:186 137:117 138:129 139:49 140:163 141:137
142:102 143:44 144:87 145:14 146:276 147:65
148:300 149:78 150:121 151:66 152:215 153:58
154:7 155:130 156:58 157:55 158:139 159:142
160:45 161:69 162:362 163:68 164:321 165:149
166:103 167:304 168:177 169:96 170:324 171:9
192:5325 193:2436 194:1983 195:1158 196:473 198:3606
199:2845 200:3030 202:4034 203:5263 204:2991 205:2048
206:2301 207:2508 208:2599 209:2732 210:927 211:371
212:962 213:928 214:16 215:22 216:3277 217:724
218:109 219:41 220:117 221:13 222:1
End of report
