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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117837
Prefixes after maximum aggregation: 75709
Unique aggregates announced to Internet: 56899
Total ASes present in the Internet Routing Table: 14228
Origin-only ASes present in the Internet Routing Table: 12349
Origin ASes announcing only one prefix: 5581
Transit ASes present in the Internet Routing Table: 1879
Transit-only ASes present in the Internet Routing Table: 60
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 33
Number of addresses announced to Internet: 1186463277
Equivalent to 70 /8s, 183 /16s and 254 /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: 54277
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19343
Total APNIC prefixes after maximum aggregation: 11469
Prefixes being announced from the APNIC address blocks: 17902
Unique aggregates announced from the APNIC address blocks: 11144
APNIC Region origin ASes present in the Internet Routing Table: 1656
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 289
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 101430176
Equivalent to 6 /8s, 11 /16s and 179 /24s
Percentage of available APNIC address space announced: 66.7
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: 73257
Total ARIN prefixes after maximum aggregation: 46958
Prefixes being announced from the ARIN address blocks: 50864
Unique aggregates announced from the ARIN address blocks: 15807
ARIN Region origin ASes present in the Internet Routing Table: 7982
ARIN Region origin ASes announcing only one prefix: 2694
ARIN Region transit ASes present in the Internet Routing Table: 749
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184302064
Equivalent to 10 /8s, 252 /16s and 57 /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: 20226
Total RIPE prefixes after maximum aggregation: 15163
Prefixes being announced from the RIPE address blocks: 16890
Unique aggregates announced from the RIPE address blocks: 11267
RIPE Region origin ASes present in the Internet Routing Table: 4207
RIPE Region origin ASes announcing only one prefix: 2281
RIPE Region transit ASes present in the Internet Routing Table: 769
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121496192
Equivalent to 7 /8s, 61 /16s and 226 /24s
Percentage of available RIPE address space announced: 80.5
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, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5009
Total LACNIC prefixes after maximum aggregation: 2119
Prefixes being announced from the LACNIC address blocks: 4341
Unique aggregates announced from the LACNIC address blocks: 2815
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11626752
Equivalent to 0 /8s, 177 /16s and 105 /24s
Percentage of available LACNIC address space announced: 69.3
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 1155 1184 836 Telstra Pty Ltd
703 395 363 310 UUNET
2907 363 1786 339 SINET Japan
2764 344 341 312 connect.com.au pty ltd
17557 315 23 124 Pakistan Telecom
7474 306 279 203 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4755 278 136 72 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
4766 231 1807 154 Korea Internet Exchange for "
17676 230 3602 27 XTAGE CORPORATION
9583 188 33 12 Satyam Infoway Ltd.,
9443 186 57 74 Primus Telecommunications
9800 139 191 37 CHINA UNICOM
9768 136 386 64 Korea Telecom
4716 129 723 123 TTnet
7657 127 26 90 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 118 11 66 UNINET-TH
3786 112 697 93 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1646 9022 1217 UUNET Technologies, Inc.
7018 1401 7139 970 AT&T
3908 1170 1666 503 Supernet, Inc.
1239 942 3129 670 Sprint
1 667 8091 440 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 599 402 261 Adelphia Corp.
7046 585 861 279 UUNET Technologies, Inc.
209 528 2049 341 Qwest
4323 528 471 167 Time Warner Communications, I
690 513 75 319 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
6197 457 589 92 BellSouth Network Solutions,
705 434 134 194 UUNET Technologies, Inc.
18566 419 96 5 Covad Communications
6198 418 181 197 BellSouth Network Solutions,
3561 413 2240 356 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 401 741 295 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
702 807 2293 670 UUNET - Commercial IP service
3301 340 1144 298 TeliaNet Sweden
3215 308 804 170 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 214 783 174 Sonera Solution Autonomous Sy
1257 213 417 202 SWIPnet Swedish IP Network
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 135 1301 123 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
3246 119 379 116 Song Networks
3269 110 752 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 193 83 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 107 70 ImpSat USA, Inc.
8151 206 316 112 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 171 87 34 Servicios Alestra S.A de C.V
6503 156 207 108 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
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 30 Integrated Systems
1916 66 288 40 Fundacao de Amparo a Pesquisa
7984 65 12 41 Global One Colombia
4926 60 4 50 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 1170 667 Supernet, Inc.
7018 1401 431 AT&T
18566 419 414 Covad Communications
6197 457 365 BellSouth Network Solutions,
4323 528 361 Time Warner Communications, I
7843 599 338 Adelphia Corp.
1221 1155 319 Telstra Pty Ltd
7046 585 306 UUNET Technologies, Inc.
1580 317 301 ANOSCEUR
4355 407 289 EarthLink, Inc.
6347 354 275 SAVVIS Communications Corpora
1239 942 272 Sprint
4151 327 269 USDA
6140 317 247 ImpSat USA, Inc.
11492 275 245 Cable One
705 434 240 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 490 233 Virginia Polytechnic Institut
1 667 227 GENUITY
22927 284 224 TELEFONICA DE ARGENTINA
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
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
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 /11:11 /12:46
/13:91 /14:237 /15:438 /16:7307 /17:1550 /18:2782
/19:7973 /20:7660 /21:5516 /22:8310 /23:9883 /24:65112
/25:139 /26:175 /27:95 /28:95 /29:68 /30:234
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 742 1170 Supernet, Inc.
702 495 807 UUNET - Commercial IP service
7018 466 1401 AT&T
690 462 513 Merit Network
701 441 1646 UUNET Technologies, Inc.
18566 413 419 Covad Communications
7066 387 490 Virginia Polytechnic Institut
7843 376 599 Adelphia Corp.
6198 334 418 BellSouth Network Solutions,
6197 333 457 BellSouth Network Solutions,
1239 327 942 Sprint
6140 305 317 ImpSat USA, Inc.
1580 302 317 ANOSCEUR
22927 284 284 TELEFONICA DE ARGENTINA
7046 278 585 UUNET Technologies, Inc.
11492 275 275 Cable One
3215 234 308 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 225 407 EarthLink, Inc.
209 214 528 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:607 13:10 15:6 17:3 20:5
24:798 25:1 32:45 38:31 40:16 44:1
55:1 57:15 61:408 62:403 63:1860 64:1319
65:1694 66:1245 67:187 68:179 69:45 80:325
81:80 128:119 129:172 130:20 131:69 132:9
133:2 134:148 135:6 136:494 137:106 138:214
139:66 140:156 141:100 142:92 143:43 144:150
145:18 146:254 147:248 148:276 149:77 150:43
151:89 152:291 153:36 154:7 155:103 156:43
157:58 158:119 159:138 160:21 161:71 162:135
163:88 164:260 165:131 166:96 167:302 168:381
169:58 170:278 171:8 178:1 192:5405 193:2387
194:2021 195:889 196:453 198:3570 199:3064 200:2667
202:3588 203:4868 204:2973 205:2096 206:2329 207:2411
208:2586 209:2655 210:629 211:283 212:868 213:759
214:12 215:21 216:3078 217:536 218:65 219:14
220:4
End of report
