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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 18 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119532
Prefixes after maximum aggregation: 76462
Unique aggregates announced to Internet: 57423
Total ASes present in the Internet Routing Table: 14432
Origin-only ASes present in the Internet Routing Table: 12540
Origin ASes announcing only one prefix: 5652
Transit ASes present in the Internet Routing Table: 1892
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 30
Number of addresses announced to Internet: 1190874073
Equivalent to 70 /8s, 251 /16s and 75 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55408
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20051
Total APNIC prefixes after maximum aggregation: 11879
Prefixes being announced from the APNIC address blocks: 18543
Unique aggregates announced from the APNIC address blocks: 11305
APNIC Region origin ASes present in the Internet Routing Table: 1713
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104314784
Equivalent to 6 /8s, 55 /16s and 183 /24s
Percentage of available APNIC address space announced: 68.6
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: 73701
Total ARIN prefixes after maximum aggregation: 47115
Prefixes being announced from the ARIN address blocks: 51980
Unique aggregates announced from the ARIN address blocks: 16040
ARIN Region origin ASes present in the Internet Routing Table: 8066
ARIN Region origin ASes announcing only one prefix: 2720
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185653232
Equivalent to 11 /8s, 16 /16s and 215 /24s
Percentage of available ARIN address space announced: 69.2
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: 20630
Total RIPE prefixes after maximum aggregation: 15284
Prefixes being announced from the RIPE address blocks: 17214
Unique aggregates announced from the RIPE address blocks: 11453
RIPE Region origin ASes present in the Internet Routing Table: 4274
RIPE Region origin ASes announcing only one prefix: 2327
RIPE Region transit ASes present in the Internet Routing Table: 771
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122232640
Equivalent to 7 /8s, 73 /16s and 31 /24s
Percentage of available RIPE address space announced: 81.0
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: 5143
Total LACNIC prefixes after maximum aggregation: 2184
Prefixes being announced from the LACNIC address blocks: 4478
Unique aggregates announced from the LACNIC address blocks: 2930
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11859712
Equivalent to 0 /8s, 180 /16s and 247 /24s
Percentage of available LACNIC address space announced: 70.7
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 1132 1184 834 Telstra Pty Ltd
703 398 364 314 UUNET
2907 390 1975 366 SINET Japan
2764 337 341 306 connect.com.au pty ltd
7474 313 281 204 Optus Communications Pty Ltd
17557 299 22 124 Pakistan Telecom
4134 295 2455 97 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
3786 237 772 204 DACOM Corporation
4755 236 134 74 Videsh Sanchar Nigam Ltd. Aut
17676 228 3556 27 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 188 57 77 Primus Telecommunications
9800 164 205 44 CHINA UNICOM
4765 136 7 13 World Net & Services Co., Ltd
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
9238 125 7 17 TATA ISP
4739 123 57 113 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1600 9013 1177 UUNET Technologies, Inc.
7018 1422 7092 962 AT&T
3908 1201 1636 507 Supernet, Inc.
1239 965 3160 677 Sprint
1 659 8076 432 GENUITY
852 610 1140 447 Telus Advanced Communications
7843 607 410 244 Adelphia Corp.
7046 561 841 260 UUNET Technologies, Inc.
4323 532 488 168 Time Warner Communications, I
690 521 76 326 Merit Network
209 519 2102 328 Qwest
7066 492 204 252 Virginia Polytechnic Institut
6197 464 561 104 BellSouth Network Solutions,
18566 430 112 5 Covad Communications
705 428 133 187 UUNET Technologies, Inc.
2386 424 450 238 AT&T Data Communications Serv
6198 423 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 401 709 295 Global Crossing
15290 394 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 807 2306 670 UUNET - Commercial IP service
3301 335 1141 297 TeliaNet Sweden
3215 314 803 174 France Telecom Transpac
3320 254 1995 227 Deutsche Telekom AG
680 237 2166 235 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 176 1873 176 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 160 68 96 BT Ignite European Backbone
8708 156 42 146 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
20858 142 17 3 This AS will be used to conne
2856 130 1302 117 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 113 754 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 319 98 105 ImpSat
7303 228 36 52 Telecom Argentina Stet-France
8151 207 317 113 UniNet S.A. de C.V.
11172 164 83 33 Servicios Alestra S.A de C.V
6503 158 207 108 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 78 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 72 27 37 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 32 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 61 11 40 Global One Colombia
11830 59 4 20 Instituto Costarricense de El
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1201 694 Supernet, Inc.
7018 1422 460 AT&T
18566 430 425 Covad Communications
4323 532 364 Time Warner Communications, I
7843 607 363 Adelphia Corp.
6197 464 360 BellSouth Network Solutions,
7046 561 301 UUNET Technologies, Inc.
1221 1132 298 Telstra Pty Ltd
11492 297 296 Cable One
4355 408 292 EarthLink, Inc.
1239 965 288 Sprint
6347 368 288 SAVVIS Communications Corpora
4151 328 268 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 428 241 UUNET Technologies, Inc.
7066 492 240 Virginia Polytechnic Institut
376 345 240 Reseau Interordinateurs Scien
4814 251 236 China Telecom (Group)
1 659 227 GENUITY
6198 423 225 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
64514 PRIVATE 198.188.18.0/24 2151 California State Uni
64514 PRIVATE 198.188.28.0/24 2151 California State Uni
65535 PRIVATE 202.57.188.0/24 7654 Siam Global Access C
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64514 PRIVATE 207.62.82.0/23 2151 California State Uni
64514 PRIVATE 207.62.84.0/22 2151 California State Uni
Advertised Unregistered 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
158.255.3.0/24 702 UUNET - Commercial IP service
178.54.59.0/24 7018 AT&T
188.1.0.0/16 680 DFN-IP service G-WiN
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.156.164.0/24 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 /12:44
/13:91 /14:240 /15:441 /16:7334 /17:1555 /18:2830
/19:8032 /20:7829 /21:5630 /22:8558 /23:10264 /24:65938
/25:139 /26:173 /27:92 /28:80 /29:68 /30:108
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 768 1201 Supernet, Inc.
7018 506 1422 AT&T
702 494 807 UUNET - Commercial IP service
690 470 521 Merit Network
18566 425 430 Covad Communications
701 423 1600 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 378 607 Adelphia Corp.
1239 354 965 Sprint
6197 341 464 BellSouth Network Solutions,
6198 337 423 BellSouth Network Solutions,
6140 307 319 ImpSat
11492 296 297 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 255 561 UUNET Technologies, Inc.
3215 241 314 France Telecom Transpac
20115 231 350 Charter Communications
4355 227 408 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
2386 226 424 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:634 13:1 15:6 17:3 20:7 24:791
25:1 32:43 38:37 40:18 44:1 55:1
57:16 61:428 62:463 63:1865 64:1364 65:1801
66:1374 67:202 68:225 69:35 80:353 81:100
128:126 129:184 130:23 131:73 132:9 133:4
134:155 135:7 136:215 137:111 138:204 139:68
140:121 141:103 142:97 143:44 144:148 145:16
146:255 147:130 148:271 149:78 150:42 151:94
152:258 153:37 154:7 155:103 156:50 157:63
158:120 159:139 160:24 161:57 162:132 163:85
164:279 165:137 166:79 167:303 168:391 169:57
170:289 171:8 178:1 192:5379 193:2400 194:1981
195:910 196:456 198:3584 199:3044 200:2783 202:3605
203:5012 204:3020 205:2113 206:2358 207:2417 208:2650
209:2690 210:686 211:317 212:900 213:752 214:13
215:23 216:3194 217:559 218:71 219:16 220:39
End of report
