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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 19 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118105
Prefixes after maximum aggregation: 75757
Unique aggregates announced to Internet: 56610
Total ASes present in the Internet Routing Table: 14256
Origin-only ASes present in the Internet Routing Table: 12373
Origin ASes announcing only one prefix: 5603
Transit ASes present in the Internet Routing Table: 1883
Transit-only ASes present in the Internet Routing Table: 58
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: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 32
Number of addresses announced to Internet: 1187311661
Equivalent to 70 /8s, 196 /16s and 240 /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: 54389
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19415
Total APNIC prefixes after maximum aggregation: 11498
Prefixes being announced from the APNIC address blocks: 17972
Unique aggregates announced from the APNIC address blocks: 11177
APNIC Region origin ASes present in the Internet Routing Table: 1659
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 284
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101700256
Equivalent to 6 /8s, 15 /16s and 210 /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: 73429
Total ARIN prefixes after maximum aggregation: 46963
Prefixes being announced from the ARIN address blocks: 50976
Unique aggregates announced from the ARIN address blocks: 15643
ARIN Region origin ASes present in the Internet Routing Table: 7997
ARIN Region origin ASes announcing only one prefix: 2707
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184485616
Equivalent to 10 /8s, 255 /16s and 6 /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: 20231
Total RIPE prefixes after maximum aggregation: 15171
Prefixes being announced from the RIPE address blocks: 16885
Unique aggregates announced from the RIPE address blocks: 11306
RIPE Region origin ASes present in the Internet Routing Table: 4220
RIPE Region origin ASes announcing only one prefix: 2289
RIPE Region transit ASes present in the Internet Routing Table: 770
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121613696
Equivalent to 7 /8s, 63 /16s and 173 /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: 5016
Total LACNIC prefixes after maximum aggregation: 2125
Prefixes being announced from the LACNIC address blocks: 4348
Unique aggregates announced from the LACNIC address blocks: 2823
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: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11654144
Equivalent to 0 /8s, 177 /16s and 212 /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 1153 1184 833 Telstra Pty Ltd
703 394 363 310 UUNET
2907 363 1786 339 SINET Japan
2764 344 341 312 connect.com.au pty ltd
17557 315 23 124 Pakistan Telecom
7474 308 280 204 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4755 272 135 74 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
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 148 194 42 CHINA UNICOM
9768 133 385 65 Korea Telecom
4716 129 723 123 TTnet
7657 128 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 1640 9021 1209 UUNET Technologies, Inc.
7018 1425 7695 955 AT&T
3908 1174 1651 503 Supernet, Inc.
1239 946 3144 674 Sprint
1 669 8091 442 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 606 404 261 Adelphia Corp.
7046 586 861 279 UUNET Technologies, Inc.
4323 531 471 167 Time Warner Communications, I
209 524 2048 339 Qwest
690 513 75 319 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
6197 455 568 102 BellSouth Network Solutions,
705 432 134 192 UUNET Technologies, Inc.
6198 418 181 197 BellSouth Network Solutions,
18566 416 96 5 Covad Communications
3561 415 2240 355 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 406 741 298 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
702 808 2291 671 UUNET - Commercial IP service
3301 343 1144 300 TeliaNet Sweden
3215 306 804 169 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 212 416 201 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 152 42 145 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 219 37 19 Telecom Argentina Stet-France
8151 204 315 110 UniNet S.A. de C.V.
11172 171 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 72 27 36 Telefonica Empresas
4270 69 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 1174 671 Supernet, Inc.
7018 1425 470 AT&T
18566 416 411 Covad Communications
4323 531 364 Time Warner Communications, I
6197 455 353 BellSouth Network Solutions,
7843 606 345 Adelphia Corp.
1221 1153 320 Telstra Pty Ltd
7046 586 307 UUNET Technologies, Inc.
1580 318 300 ANOSCEUR
4355 407 289 EarthLink, Inc.
11492 278 277 Cable One
6347 354 275 SAVVIS Communications Corpora
1239 946 272 Sprint
22927 289 267 TELEFONICA DE ARGENTINA
4151 322 264 USDA
705 432 240 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 490 233 Virginia Polytechnic Institut
1 669 227 GENUITY
6198 418 221 BellSouth Network Solutions,
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
64519 PRIVATE 198.189.6.0/24 2150 California State Uni
64519 PRIVATE 198.189.20.0/24 2150 California State Uni
64519 PRIVATE 198.189.156.0/24 2150 California State Uni
64519 PRIVATE 205.155.94.0/23 2150 California State Uni
64519 PRIVATE 205.155.96.0/24 2150 California State Uni
64519 PRIVATE 205.155.107.0/24 2150 California State Uni
64519 PRIVATE 205.155.108.0/22 2150 California State Uni
64519 PRIVATE 205.155.112.0/20 2150 California State Uni
64519 PRIVATE 205.155.128.0/22 2150 California State Uni
64519 PRIVATE 205.155.132.0/23 2150 California State Uni
64519 PRIVATE 205.155.141.0/24 2150 California State Uni
64519 PRIVATE 205.155.158.0/23 2150 California State Uni
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
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 /16:7327 /17:1546 /18:2787
/19:7968 /20:7677 /21:5530 /22:8350 /23:9896 /24:65270
/25:141 /26:179 /27:95 /28:95 /29:68 /30:236
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 744 1174 Supernet, Inc.
702 497 808 UUNET - Commercial IP service
7018 485 1425 AT&T
690 462 513 Merit Network
701 440 1640 UUNET Technologies, Inc.
18566 410 416 Covad Communications
7066 387 490 Virginia Polytechnic Institut
7843 385 606 Adelphia Corp.
6198 334 418 BellSouth Network Solutions,
6197 332 455 BellSouth Network Solutions,
1239 330 946 Sprint
1580 303 318 ANOSCEUR
6140 302 314 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
7046 279 586 UUNET Technologies, Inc.
11492 277 278 Cable One
3215 232 306 France Telecom Transpac
11537 228 234 University Corporation for Ad
4355 225 407 EarthLink, Inc.
7303 218 219 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:606 13:10 15:6 17:3 20:5
24:800 25:1 32:45 38:31 40:16 44:1
55:1 57:15 61:407 62:416 63:1864 64:1319
65:1697 66:1252 67:187 68:179 69:45 80:317
81:79 128:123 129:185 130:20 131:70 132:9
133:2 134:147 135:6 136:499 137:110 138:212
139:68 140:156 141:99 142:92 143:43 144:149
145:18 146:250 147:248 148:277 149:77 150:43
151:89 152:291 153:36 154:7 155:104 156:44
157:58 158:119 159:137 160:21 161:71 162:133
163:90 164:262 165:130 166:100 167:303 168:383
169:58 170:285 171:8 192:5424 193:2381 194:2023
195:893 196:453 198:3577 199:3061 200:2672 202:3606
203:4878 204:2995 205:2102 206:2352 207:2415 208:2584
209:2648 210:637 211:284 212:876 213:720 214:12
215:21 216:3087 217:546 218:68 219:14 220:6
End of report
