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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 30 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128690
Prefixes after maximum aggregation: 80002
Unique aggregates announced to Internet: 61753
Total ASes present in the Internet Routing Table: 15892
Origin-only ASes present in the Internet Routing Table: 13792
Origin ASes announcing only one prefix: 6261
Transit ASes present in the Internet Routing Table: 2100
Transit-only ASes present in the Internet Routing Table: 68
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: 1227228964
Equivalent to 73 /8s, 38 /16s and 7 /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: 57188
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23378
Total APNIC prefixes after maximum aggregation: 12795
Prefixes being announced from the APNIC address blocks: 21782
Unique aggregates announced from the APNIC address blocks: 12398
APNIC Region origin ASes present in the Internet Routing Table: 1903
APNIC Region origin ASes announcing only one prefix: 549
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 122865408
Equivalent to 7 /8s, 82 /16s and 199 /24s
Percentage of available APNIC address space announced: 66.2
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: 77271
Total ARIN prefixes after maximum aggregation: 48339
Prefixes being announced from the ARIN address blocks: 55042
Unique aggregates announced from the ARIN address blocks: 17293
ARIN Region origin ASes present in the Internet Routing Table: 8702
ARIN Region origin ASes announcing only one prefix: 3000
ARIN Region transit ASes present in the Internet Routing Table: 836
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197293088
Equivalent to 11 /8s, 194 /16s and 116 /24s
Percentage of available ARIN address space announced: 73.5
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: 22609
Total RIPE prefixes after maximum aggregation: 16592
Prefixes being announced from the RIPE address blocks: 19120
Unique aggregates announced from the RIPE address blocks: 12943
RIPE Region origin ASes present in the Internet Routing Table: 4873
RIPE Region origin ASes announcing only one prefix: 2611
RIPE Region transit ASes present in the Internet Routing Table: 855
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136632896
Equivalent to 8 /8s, 36 /16s and 218 /24s
Percentage of available RIPE address space announced: 74.0
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: 5427
Total LACNIC prefixes after maximum aggregation: 2276
Prefixes being announced from the LACNIC address blocks: 4915
Unique aggregates announced from the LACNIC address blocks: 3188
LACNIC Region origin ASes present in the Internet Routing Table: 346
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: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13307392
Equivalent to 0 /8s, 203 /16s and 14 /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 971 1109 687 Telstra Pty Ltd
4814 664 96 5 China Telecom (Group)
4755 384 133 72 Videsh Sanchar Nigam Ltd. Aut
2907 374 1879 348 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 297 322 260 connect.com.au pty ltd
17557 291 21 140 Pakistan Telecom
7474 266 306 209 Optus Communications Pty Ltd
17676 265 3980 26 XTAGE CORPORATION
9583 261 38 27 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9942 189 69 111 COMindico Australia
9929 188 160 36 China Netcom Corp.
9498 184 20 17 BHARTI BT INTERNET LTD.
9443 183 58 83 Primus Telecommunications
4538 177 1634 23 China Education and Research
17642 156 40 117 RequestDSL BGP AS# for Sydney
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1461 8703 1017 UUNET Technologies, Inc.
7018 1392 7104 972 AT&T
6197 985 443 246 BellSouth Network Solutions,
3908 916 1574 493 Supernet, Inc.
1239 905 3029 651 Sprint
18566 694 176 8 Covad Communications
4323 671 575 195 Time Warner Communications, I
3356 577 10762 482 Level 3 Communications, LLC
6198 556 330 195 BellSouth Network Solutions,
7843 529 466 134 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 505 2127 291 Qwest
7066 498 205 263 Virginia Polytechnic Institut
20115 475 205 296 Charter Communications
690 411 59 276 Merit Network
705 409 185 250 UUNET Technologies, Inc.
4355 395 334 109 EarthLink, Inc.
2386 375 507 194 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 356 397 81 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 710 2121 589 UUNET - Commercial IP service
3301 296 1169 283 TeliaNet Sweden
3320 272 1989 232 Deutsche Telekom AG
8220 258 434 247 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
3215 188 737 106 France Telecom Transpac
5515 186 779 148 Sonera Solution Autonomous Sy
5400 184 173 133 BT Ignite European Backbone
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 104 128 72 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 340 104 101 ImpSat
8151 234 367 122 UniNet S.A. de C.V.
7303 216 40 58 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 102 3 35 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 73 21 28 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 985 739 BellSouth Network Solutions,
18566 694 686 Covad Communications
4814 664 659 China Telecom (Group)
4323 671 476 Time Warner Communications, I
3908 916 423 Supernet, Inc.
7018 1392 420 AT&T
7843 529 395 Adelphia Corp.
6198 556 361 BellSouth Network Solutions,
4755 384 312 Videsh Sanchar Nigam Ltd. Aut
27364 314 291 Armstrong Cable Services
5668 303 288 Century Telephone
4355 395 286 EarthLink, Inc.
1221 971 284 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 356 275 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 905 254 Sprint
22773 286 250 Cox Communications, Inc. Atla
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 /14:266 /15:471 /16:7438 /17:1759 /18:3136
/19:8539 /20:8857 /21:6523 /22:9382 /23:10847 /24:70654
/25:148 /26:203 /27:169 /28:20 /29:9 /30:53
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6197 845 985 BellSouth Network Solutions,
18566 688 694 Covad Communications
4814 646 664 China Telecom (Group)
3908 577 916 Supernet, Inc.
7018 503 1392 AT&T
701 437 1461 UUNET Technologies, Inc.
6198 433 556 BellSouth Network Solutions,
702 426 710 UUNET - Commercial IP service
7066 393 498 Virginia Polytechnic Institut
690 371 411 Merit Network
20115 318 475 Charter Communications
1239 315 905 Sprint
27364 308 314 Armstrong Cable Services
3356 278 577 Level 3 Communications, LLC
5668 269 303 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
4355 213 395 EarthLink, Inc.
7843 213 529 Adelphia Corp.
3320 211 272 Deutsche Telekom AG
209 201 505 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:707 13:1 15:4 16:1 17:3
20:6 24:826 25:1 32:84 38:47 40:23
43:1 44:2 55:1 57:14 61:710 62:417
63:1881 64:1754 65:2067 66:2219 67:334 68:422
69:269 80:421 81:134 82:17 128:142 129:167
130:62 131:81 132:18 133:1 134:168 135:9
136:186 137:117 138:128 139:49 140:163 141:138
142:100 143:44 144:87 145:14 146:276 147:66
148:299 149:78 150:121 151:66 152:212 153:58
154:7 155:128 156:58 157:54 158:134 159:141
160:45 161:69 162:361 163:67 164:321 165:147
166:103 167:305 168:178 169:97 170:325 171:9
192:5326 193:2447 194:1985 195:1164 196:473 198:3600
199:2840 200:3025 202:4008 203:5286 204:2997 205:2049
206:2323 207:2506 208:2607 209:2736 210:928 211:373
212:961 213:926 214:16 215:22 216:3286 217:726
218:109 219:39 220:116 221:12 222:1
End of report
