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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 20 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118443
Prefixes after maximum aggregation: 75862
Unique aggregates announced to Internet: 56635
Total ASes present in the Internet Routing Table: 14252
Origin-only ASes present in the Internet Routing Table: 12366
Origin ASes announcing only one prefix: 5585
Transit ASes present in the Internet Routing Table: 1886
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1187104045
Equivalent to 70 /8s, 193 /16s and 197 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54694
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19383
Total APNIC prefixes after maximum aggregation: 11525
Prefixes being announced from the APNIC address blocks: 17949
Unique aggregates announced from the APNIC address blocks: 11202
APNIC Region origin ASes present in the Internet Routing Table: 1660
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 285
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101654176
Equivalent to 6 /8s, 15 /16s and 30 /24s
Percentage of available APNIC address space announced: 66.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73748
Total ARIN prefixes after maximum aggregation: 46990
Prefixes being announced from the ARIN address blocks: 51264
Unique aggregates announced from the ARIN address blocks: 15655
ARIN Region origin ASes present in the Internet Routing Table: 7992
ARIN Region origin ASes announcing only one prefix: 2696
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184491248
Equivalent to 10 /8s, 255 /16s and 28 /24s
Percentage of available ARIN address space announced: 68.7
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
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: 20260
Total RIPE prefixes after maximum aggregation: 15171
Prefixes being announced from the RIPE address blocks: 16894
Unique aggregates announced from the RIPE address blocks: 11289
RIPE Region origin ASes present in the Internet Routing Table: 4217
RIPE Region origin ASes announcing only one prefix: 2284
RIPE Region transit ASes present in the Internet Routing Table: 774
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121661056
Equivalent to 7 /8s, 64 /16s and 102 /24s
Percentage of available RIPE address space announced: 80.6
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, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5047
Total LACNIC prefixes after maximum aggregation: 2176
Prefixes being announced from the LACNIC address blocks: 4379
Unique aggregates announced from the LACNIC address blocks: 2837
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 11667968
Equivalent to 0 /8s, 178 /16s and 10 /24s
Percentage of available LACNIC address space announced: 69.5
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1150 1183 833 Telstra Pty Ltd
703 394 363 310 UUNET
2907 356 1767 334 SINET Japan
2764 344 341 312 connect.com.au pty ltd
17557 315 23 124 Pakistan Telecom
7474 309 280 204 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4814 249 79 15 China Telecom (Group)
4755 247 135 71 Videsh Sanchar Nigam Ltd. Aut
4766 232 1808 155 Korea Internet Exchange for "
17676 230 3602 27 XTAGE CORPORATION
9583 193 33 12 Satyam Infoway Ltd.,
9443 187 57 75 Primus Telecommunications
9800 149 194 43 CHINA UNICOM
9768 133 385 65 Korea Telecom
4716 129 723 123 TTnet
7657 127 26 91 The Internet Group Limited
4621 122 11 65 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
3786 115 745 94 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1643 9021 1211 UUNET Technologies, Inc.
7018 1428 7695 958 AT&T
3908 1180 1651 504 Supernet, Inc.
1239 944 3143 673 Sprint
1 667 8091 440 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 624 405 264 Adelphia Corp.
7046 586 861 279 UUNET Technologies, Inc.
4323 531 471 167 Time Warner Communications, I
209 526 2048 339 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 455 560 103 BellSouth Network Solutions,
705 433 134 193 UUNET Technologies, Inc.
6198 419 181 197 BellSouth Network Solutions,
18566 418 96 5 Covad Communications
3561 413 2240 355 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 404 741 297 Global Crossing
15290 392 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2291 672 UUNET - Commercial IP service
3301 343 1144 300 TeliaNet Sweden
3215 311 818 173 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 212 416 201 SWIPnet Swedish IP Network
5515 211 783 172 Sonera Solution Autonomous Sy
719 199 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 153 42 146 Romania Data Systems S.A.
3303 146 517 145 Swisscom Ltd
20858 146 17 4 This AS will be used to conne
2856 131 1301 119 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 314 97 103 ImpSat USA, Inc.
7303 210 34 57 Telecom Argentina Stet-France
8151 203 315 109 UniNet S.A. de C.V.
11172 172 87 34 Servicios Alestra S.A de C.V
6503 158 207 110 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 107 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 77 58 24 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 59 4 49 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 56 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1180 676 Supernet, Inc.
7018 1428 470 AT&T
18566 418 413 Covad Communications
4323 531 364 Time Warner Communications, I
7843 624 360 Adelphia Corp.
6197 455 352 BellSouth Network Solutions,
1221 1150 317 Telstra Pty Ltd
7046 586 307 UUNET Technologies, Inc.
1580 323 301 ANOSCEUR
4355 407 289 EarthLink, Inc.
6347 360 281 SAVVIS Communications Corpora
1239 944 271 Sprint
11492 271 270 Cable One
22927 289 267 TELEFONICA DE ARGENTINA
4151 324 266 USDA
376 345 241 Reseau Interordinateurs Scien
705 433 240 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 667 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:12 /12:46
/13:92 /14:237 /15:438 /16:7323 /17:1545 /18:2790
/19:7974 /20:7685 /21:5530 /22:8346 /23:10041 /24:65444
/25:139 /26:181 /27:96 /28:98 /29:68 /30:242
/31:19 /32:69
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 750 1180 Supernet, Inc.
702 497 809 UUNET - Commercial IP service
7018 486 1428 AT&T
690 462 513 Merit Network
701 441 1643 UUNET Technologies, Inc.
18566 412 418 Covad Communications
7843 403 624 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 335 419 BellSouth Network Solutions,
6197 333 455 BellSouth Network Solutions,
1239 328 944 Sprint
1580 308 323 ANOSCEUR
6140 302 314 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
7046 279 586 UUNET Technologies, Inc.
11492 270 271 Cable One
3215 237 311 France Telecom Transpac
11537 229 235 University Corporation for Ad
4355 225 407 EarthLink, Inc.
209 213 526 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:606 13:10 15:6 17:3 20:7 24:802
25:1 32:45 38:31 40:16 44:1 55:1
57:15 61:407 62:417 63:1868 64:1323 65:1697
66:1262 67:187 68:212 69:45 80:314 81:78
128:119 129:185 130:20 131:71 132:9 133:2
134:146 135:6 136:499 137:108 138:212 139:67
140:156 141:99 142:92 143:43 144:149 145:18
146:250 147:248 148:277 149:77 150:43 151:89
152:291 153:36 154:7 155:104 156:44 157:58
158:119 159:138 160:21 161:71 162:133 163:91
164:262 165:130 166:99 167:303 168:384 169:58
170:289 171:8 178:1 192:5441 193:2375 194:2022
195:893 196:455 198:3581 199:3063 200:2707 202:3608
203:4865 204:2992 205:2116 206:2357 207:2431 208:2580
209:2680 210:642 211:286 212:882 213:723 214:12
215:21 216:3100 217:538 218:68 219:14 220:6
End of report
