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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 25 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122903
Prefixes after maximum aggregation: 78183
Unique aggregates announced to Internet: 59134
Total ASes present in the Internet Routing Table: 14870
Origin-only ASes present in the Internet Routing Table: 12898
Origin ASes announcing only one prefix: 5838
Transit ASes present in the Internet Routing Table: 1972
Transit-only ASes present in the Internet Routing Table: 69
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 20
Number of addresses announced to Internet: 1218654725
Equivalent to 72 /8s, 163 /16s and 50 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 57679
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20586
Total APNIC prefixes after maximum aggregation: 12177
Prefixes being announced from the APNIC address blocks: 19064
Unique aggregates announced from the APNIC address blocks: 11787
APNIC Region origin ASes present in the Internet Routing Table: 1753
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107886272
Equivalent to 6 /8s, 110 /16s and 54 /24s
Percentage of available APNIC address space announced: 63.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75712
Total ARIN prefixes after maximum aggregation: 48153
Prefixes being announced from the ARIN address blocks: 53912
Unique aggregates announced from the ARIN address blocks: 16833
ARIN Region origin ASes present in the Internet Routing Table: 8258
ARIN Region origin ASes announcing only one prefix: 2795
ARIN Region transit ASes present in the Internet Routing Table: 796
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187929152
Equivalent to 11 /8s, 51 /16s and 146 /24s
Percentage of available ARIN address space announced: 70.0
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: 21333
Total RIPE prefixes after maximum aggregation: 15640
Prefixes being announced from the RIPE address blocks: 17858
Unique aggregates announced from the RIPE address blocks: 11889
RIPE Region origin ASes present in the Internet Routing Table: 4461
RIPE Region origin ASes announcing only one prefix: 2438
RIPE Region transit ASes present in the Internet Routing Table: 804
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 128466176
Equivalent to 7 /8s, 168 /16s and 61 /24s
Percentage of available RIPE address space announced: 76.6
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5261
Total LACNIC prefixes after maximum aggregation: 2213
Prefixes being announced from the LACNIC address blocks: 4649
Unique aggregates announced from the LACNIC address blocks: 2933
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12399616
Equivalent to 0 /8s, 189 /16s and 52 /24s
Percentage of available LACNIC address space announced: 73.9
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 1102 1106 806 Telstra Pty Ltd
703 404 368 313 UUNET
2907 387 1975 366 SINET Japan
17557 378 28 140 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 311 2676 103 Data Communications Bureau
7474 307 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 250 772 212 DACOM Corporation
17676 234 3606 24 XTAGE CORPORATION
4755 229 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 218 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 58 78 Primus Telecommunications
9800 168 206 40 CHINA UNICOM
9238 135 8 17 TATA ISP
4716 128 717 122 TTnet
4739 127 57 116 Commerical Internet eXchange
9498 125 9 9 BHARTI BT INTERNET LTD.
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1580 8828 1122 UUNET Technologies, Inc.
7018 1358 7143 944 AT&T
3908 1249 1588 481 Supernet, Inc.
1239 975 3153 693 Sprint
1 698 8071 426 GENUITY
7843 625 403 182 Adelphia Corp.
3561 591 2352 344 Cable & Wireless USA
852 554 1107 436 Telus Advanced Communications
4323 552 490 172 Time Warner Communications, I
4151 548 691 61 USDA
18566 541 122 11 Covad Communications
209 534 2107 342 Qwest
690 504 74 314 Merit Network
2386 499 481 247 AT&T Data Communications Serv
7066 490 204 254 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
705 458 186 204 UUNET Technologies, Inc.
6198 446 221 174 BellSouth Network Solutions,
20115 416 170 272 Charter Communications
3549 410 695 312 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 784 2236 649 UUNET - Commercial IP service
3301 311 1174 301 TeliaNet Sweden
3215 310 835 174 France Telecom Transpac
3320 267 1996 230 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
5400 223 77 106 BT Ignite European Backbone
1257 217 344 191 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 151 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 136 215 127 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 112 753 62 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 106 10 19 RNC - Romanian Natioanal R&D
3352 105 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 106 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 217 349 116 UniNet S.A. de C.V.
11172 164 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 109 3 37 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 75 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 63 4 25 Instituto Costarricense de El
7984 61 11 40 Global One Colombia
13999 60 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1249 768 Supernet, Inc.
18566 541 530 Covad Communications
4151 548 487 USDA
7843 625 443 Adelphia Corp.
7018 1358 414 AT&T
4323 552 380 Time Warner Communications, I
1221 1102 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 975 282 Sprint
6197 476 280 BellSouth Network Solutions,
4355 385 273 EarthLink, Inc.
1 698 272 GENUITY
6198 446 272 BellSouth Network Solutions,
22927 286 272 TELEFONICA DE ARGENTINA
27364 278 260 Armstrong Cable Services
705 458 254 UUNET Technologies, Inc.
2386 499 252 AT&T Data Communications Serv
4814 264 249 China Telecom (Group)
3561 591 247 Cable & Wireless USA
17557 378 238 Pakistan Telecom
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
160.225.160.0/19 5676 Pacific Bell Internet Service
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
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 /8:18 /9:3 /10:8 /11:13 /12:46
/13:89 /14:241 /15:451 /16:7355 /17:1634 /18:2920
/19:8245 /20:8230 /21:5850 /22:8834 /23:10609 /24:67477
/25:196 /26:199 /27:125 /28:120 /29:77 /30:91
/31:4 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 817 1249 Supernet, Inc.
18566 536 541 Covad Communications
702 487 784 UUNET - Commercial IP service
7018 467 1358 AT&T
701 459 1580 UUNET Technologies, Inc.
690 453 504 Merit Network
7066 389 490 Virginia Polytechnic Institut
7843 378 625 Adelphia Corp.
1239 371 975 Sprint
6197 355 476 BellSouth Network Solutions,
6198 354 446 BellSouth Network Solutions,
2386 299 499 AT&T Data Communications Serv
20115 291 416 Charter Communications
22927 285 286 TELEFONICA DE ARGENTINA
6140 278 291 ImpSat
27364 272 278 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 234 310 France Telecom Transpac
209 226 534 Qwest
4355 213 385 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:667 13:1 15:4 17:2 20:10
24:790 25:1 32:93 34:1 38:61 40:18
44:2 55:1 57:15 61:455 62:509 63:1924
64:1470 65:1927 66:1588 67:222 68:305 69:66
80:339 81:104 128:150 129:225 130:45 131:83
132:11 133:11 134:146 135:4 136:113 137:115
138:106 139:67 140:151 141:77 142:95 143:47
144:100 145:18 146:266 147:90 148:274 149:74
150:42 151:66 152:249 153:52 154:2 155:108
156:46 157:44 158:123 159:139 160:33 161:61
162:126 163:90 164:299 165:145 166:74 167:321
168:401 169:55 170:315 171:6 192:5302 193:2394
194:1994 195:970 196:478 198:3622 199:3240 200:2887
202:3634 203:5023 204:3071 205:2021 206:2412 207:2437
208:2683 209:2817 210:732 211:324 212:975 213:776
214:21 215:22 216:3249 217:607 218:82 219:9
220:54
End of report
