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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 10 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125944
Prefixes after maximum aggregation: 78941
Unique aggregates announced to Internet: 59184
Total ASes present in the Internet Routing Table: 15303
Origin-only ASes present in the Internet Routing Table: 13268
Origin ASes announcing only one prefix: 6001
Transit ASes present in the Internet Routing Table: 2035
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 29
Number of addresses announced to Internet: 1250915712
Equivalent to 74 /8s, 143 /16s and 117 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55524
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21620
Total APNIC prefixes after maximum aggregation: 12628
Prefixes being announced from the APNIC address blocks: 20020
Unique aggregates announced from the APNIC address blocks: 12116
APNIC Region origin ASes present in the Internet Routing Table: 1815
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 299
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 114616736
Equivalent to 6 /8s, 212 /16s and 233 /24s
Percentage of available APNIC address space announced: 61.8
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: 77313
Total ARIN prefixes after maximum aggregation: 48123
Prefixes being announced from the ARIN address blocks: 55428
Unique aggregates announced from the ARIN address blocks: 16415
ARIN Region origin ASes present in the Internet Routing Table: 8458
ARIN Region origin ASes announcing only one prefix: 2883
ARIN Region transit ASes present in the Internet Routing Table: 817
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192599552
Equivalent to 11 /8s, 122 /16s and 214 /24s
Percentage of available ARIN address space announced: 71.7
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: 21642
Total RIPE prefixes after maximum aggregation: 15939
Prefixes being announced from the RIPE address blocks: 18131
Unique aggregates announced from the RIPE address blocks: 12125
RIPE Region origin ASes present in the Internet Routing Table: 4622
RIPE Region origin ASes announcing only one prefix: 2515
RIPE Region transit ASes present in the Internet Routing Table: 820
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 132012288
Equivalent to 7 /8s, 222 /16s and 89 /24s
Percentage of available RIPE address space announced: 71.5
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: 5365
Total LACNIC prefixes after maximum aggregation: 2251
Prefixes being announced from the LACNIC address blocks: 4774
Unique aggregates announced from the LACNIC address blocks: 2980
LACNIC Region origin ASes present in the Internet Routing Table: 335
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12685312
Equivalent to 0 /8s, 193 /16s and 144 /24s
Percentage of available LACNIC address space announced: 37.8
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 1074 1103 767 Telstra Pty Ltd
4755 416 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 351 25 149 Pakistan Telecom
703 343 371 272 UUNET
2764 314 341 280 connect.com.au pty ltd
7474 269 306 203 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 241 2067 120 Data Communications Bureau
9583 222 34 18 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9443 182 58 82 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
9498 146 10 17 BHARTI BT INTERNET LTD.
4739 138 57 126 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 129 140 103 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
4814 128 78 22 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1547 8913 1092 UUNET Technologies, Inc.
7018 1334 7194 923 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 948 3022 667 Sprint
3908 917 1548 480 Supernet, Inc.
189 705 341 292 Genuity
11305 647 170 72 Interland Incorporated
7843 629 358 174 Adelphia Corp.
1 628 2606 423 GENUITY
4323 598 525 175 Time Warner Communications, I
18566 589 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
209 494 2106 300 Qwest
6197 491 343 194 BellSouth Network Solutions,
7066 484 204 259 Virginia Polytechnic Institut
6198 465 230 176 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 452 66 296 Merit Network
2386 440 521 244 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 749 2173 636 UUNET - Commercial IP service
3301 302 1171 289 TeliaNet Sweden
3215 295 880 168 France Telecom Transpac
3320 265 2004 227 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 224 311 186 SWIPnet Swedish IP Network
8220 223 384 211 COLT Internet - International
5400 222 139 131 BT Ignite European Backbone
719 215 307 124 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5515 179 795 150 Sonera Solution Autonomous Sy
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 118 366 114 Song Networks
3269 117 823 64 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
8895 102 58 25 KACST/ISU Riyadh Autonomous S
2647 98 4129 39 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 296 98 110 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 131 189 94 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 97 70 21 Telefonica Del Peru
11992 89 8 34 Integrated Systems
8065 80 8 15 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
13999 68 36 8 Mega Cable S.A. de C.V.
11830 66 4 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
15034 62 5 33 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1015 788 Southwestern Bell Internet Se
18566 589 581 Covad Communications
11305 647 575 Interland Incorporated
7843 629 455 Adelphia Corp.
3908 917 437 Supernet, Inc.
4323 598 423 Time Warner Communications, I
189 705 413 Genuity
7018 1334 411 AT&T
4755 416 344 Videsh Sanchar Nigam Ltd. Aut
1221 1074 307 Telstra Pty Ltd
6197 491 297 BellSouth Network Solutions,
27364 315 297 Armstrong Cable Services
4355 405 294 EarthLink, Inc.
6198 465 289 BellSouth Network Solutions,
6347 365 286 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 948 281 Sprint
376 384 268 Reseau Interordinateurs Scien
22909 275 264 Comcast Cable Corporation
17676 250 231 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.208.0.0/14 1668 GNN Hosting Service
173.30.197.128/26 3549 Global Crossing
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
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
192.228.21.0/24 27299 CIRA Canadian Internet Regist
192.228.22.0/24 27299 CIRA Canadian Internet Regist
192.228.23.0/24 27299 CIRA Canadian Internet Regist
192.228.24.0/24 27299 CIRA Canadian Internet Regist
192.228.25.0/24 27299 CIRA Canadian Internet Regist
192.228.26.0/24 27299 CIRA Canadian Internet Regist
192.228.27.0/24 27299 CIRA Canadian Internet Regist
192.228.28.0/24 27299 CIRA Canadian Internet Regist
192.228.29.0/24 27299 CIRA Canadian Internet Regist
192.228.30.0/24 27299 CIRA Canadian Internet Regist
192.228.31.0/24 27299 CIRA Canadian Internet Regist
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:5 /10:8 /11:13 /12:52
/13:99 /14:256 /15:469 /16:7428 /17:1685 /18:2993
/19:8468 /20:8538 /21:6128 /22:9070 /23:10653 /24:69507
/25:168 /26:217 /27:55 /28:40 /29:26 /30:21
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 628 705 Genuity
18566 583 589 Covad Communications
3908 574 917 Supernet, Inc.
11305 573 647 Interland Incorporated
7018 466 1334 AT&T
702 458 749 UUNET - Commercial IP service
701 432 1547 UUNET Technologies, Inc.
690 410 452 Merit Network
7843 389 629 Adelphia Corp.
7066 381 484 Virginia Polytechnic Institut
6197 367 491 BellSouth Network Solutions,
6198 363 465 BellSouth Network Solutions,
1239 356 948 Sprint
20115 323 462 Charter Communications
27364 308 315 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
1 231 628 GENUITY
19262 221 257 Verizon Global Networks
2386 220 440 AT&T Data Communications Serv
3215 219 295 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:704 13:1 15:4 16:1 17:3
20:8 24:857 25:1 32:87 38:60 40:20
44:2 57:17 61:361 62:345 63:1875 64:1932
65:1967 66:2584 67:177 68:382 69:196 80:357
81:126 128:139 129:177 130:47 131:79 132:26
134:174 135:4 136:117 137:106 138:110 139:64
140:158 141:116 142:94 143:43 144:106 145:14
146:274 147:97 148:288 149:61 150:43 151:70
152:231 153:59 154:3 155:116 156:53 157:38
158:127 159:137 160:43 161:76 162:129 163:78
164:311 165:143 166:93 167:319 168:409 169:61
170:312 171:8 192:5332 193:2439 194:1953 195:1046
196:470 198:3561 199:2722 200:2970 202:3787 203:5275
204:2997 205:2046 206:2363 207:2419 208:2605 209:2892
210:813 211:332 212:1048 213:790 214:20 215:23
216:3527 217:625 218:87 219:44 220:96 221:3
End of report
