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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 17 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119787
Prefixes after maximum aggregation: 76338
Unique aggregates announced to Internet: 57392
Total ASes present in the Internet Routing Table: 14421
Origin-only ASes present in the Internet Routing Table: 12538
Origin ASes announcing only one prefix: 5659
Transit ASes present in the Internet Routing Table: 1883
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: 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: 1189461017
Equivalent to 70 /8s, 229 /16s and 188 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55854
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19989
Total APNIC prefixes after maximum aggregation: 11870
Prefixes being announced from the APNIC address blocks: 18495
Unique aggregates announced from the APNIC address blocks: 11322
APNIC Region origin ASes present in the Internet Routing Table: 1711
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104228256
Equivalent to 6 /8s, 54 /16s and 101 /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: 74013
Total ARIN prefixes after maximum aggregation: 46998
Prefixes being announced from the ARIN address blocks: 51896
Unique aggregates announced from the ARIN address blocks: 16079
ARIN Region origin ASes present in the Internet Routing Table: 8058
ARIN Region origin ASes announcing only one prefix: 2727
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: 185631216
Equivalent to 11 /8s, 16 /16s and 129 /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: 20641
Total RIPE prefixes after maximum aggregation: 15286
Prefixes being announced from the RIPE address blocks: 17221
Unique aggregates announced from the RIPE address blocks: 11456
RIPE Region origin ASes present in the Internet Routing Table: 4271
RIPE Region origin ASes announcing only one prefix: 2328
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122228864
Equivalent to 7 /8s, 73 /16s and 16 /24s
Percentage of available RIPE address space announced: 80.9
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: 5137
Total LACNIC prefixes after maximum aggregation: 2184
Prefixes being announced from the LACNIC address blocks: 4477
Unique aggregates announced from the LACNIC address blocks: 2944
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: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 11853824
Equivalent to 0 /8s, 180 /16s and 224 /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 1139 1184 834 Telstra Pty Ltd
703 400 365 316 UUNET
2907 390 1975 366 SINET Japan
2764 336 340 305 connect.com.au pty ltd
17557 320 23 133 Pakistan Telecom
7474 313 281 204 Optus Communications Pty Ltd
4134 296 2457 95 Data Communications Bureau
4814 246 79 15 China Telecom (Group)
3786 237 772 204 DACOM Corporation
4755 236 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 227 3554 26 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 187 57 76 Primus Telecommunications
9800 166 204 43 CHINA UNICOM
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 86 The Internet Group Limited
9238 124 7 16 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 1615 9029 1189 UUNET Technologies, Inc.
7018 1441 7090 973 AT&T
3908 1199 1635 505 Supernet, Inc.
1239 975 3160 680 Sprint
1 659 8076 432 GENUITY
7843 611 410 244 Adelphia Corp.
852 609 1140 446 Telus Advanced Communications
7046 549 841 258 UUNET Technologies, Inc.
4323 528 488 168 Time Warner Communications, I
690 521 76 326 Merit Network
209 520 2102 328 Qwest
7066 492 204 252 Virginia Polytechnic Institut
6197 461 561 104 BellSouth Network Solutions,
705 428 133 187 UUNET Technologies, Inc.
18566 426 112 5 Covad Communications
6198 424 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
2386 406 464 226 AT&T Data Communications Serv
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 337 1141 297 TeliaNet Sweden
3215 313 803 173 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 161 70 98 BT Ignite European Backbone
8708 156 42 146 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 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
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
11830 57 4 18 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1199 694 Supernet, Inc.
7018 1441 468 AT&T
18566 426 421 Covad Communications
7843 611 367 Adelphia Corp.
4323 528 360 Time Warner Communications, I
6197 461 357 BellSouth Network Solutions,
1221 1139 305 Telstra Pty Ltd
1580 313 300 ANOSCEUR
1239 975 295 Sprint
11492 295 294 Cable One
4355 408 292 EarthLink, Inc.
7046 549 291 UUNET Technologies, Inc.
6347 367 288 SAVVIS Communications Corpora
4151 329 271 USDA
22927 283 261 TELEFONICA DE ARGENTINA
705 428 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 492 240 Virginia Polytechnic Institut
4814 246 231 China Telecom (Group)
1 659 227 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
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 /15:440 /16:7313 /17:1554 /18:2830
/19:8038 /20:7821 /21:5619 /22:8558 /23:10264 /24:66228
/25:138 /26:174 /27:93 /28:79 /29:68 /30:108
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 766 1199 Supernet, Inc.
7018 512 1441 AT&T
702 494 807 UUNET - Commercial IP service
690 470 521 Merit Network
701 433 1615 UUNET Technologies, Inc.
18566 421 426 Covad Communications
7066 391 492 Virginia Polytechnic Institut
7843 383 611 Adelphia Corp.
1239 362 975 Sprint
6197 338 461 BellSouth Network Solutions,
6198 338 424 BellSouth Network Solutions,
6140 307 319 ImpSat
1580 299 313 ANOSCEUR
11492 294 295 Cable One
22927 282 283 TELEFONICA DE ARGENTINA
7046 244 549 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 231 350 Charter Communications
4355 227 408 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:631 13:1 15:6 17:3 20:7 24:778
25:1 32:43 38:37 40:18 44:1 55:1
57:16 61:423 62:466 63:1863 64:1359 65:1799
66:1371 67:200 68:225 69:51 80:352 81:100
128:126 129:184 130:23 131:70 132:9 133:4
134:155 135:6 136:491 137:111 138:209 139:84
140:185 141:104 142:97 143:44 144:148 145:16
146:255 147:244 148:271 149:79 150:42 151:89
152:258 153:37 154:7 155:103 156:49 157:62
158:120 159:139 160:22 161:57 162:132 163:85
164:278 165:135 166:78 167:302 168:385 169:57
170:289 171:8 178:1 192:5352 193:2398 194:1984
195:916 196:432 198:3569 199:3032 200:2785 202:3628
203:4947 204:3011 205:2115 206:2356 207:2409 208:2644
209:2694 210:688 211:319 212:894 213:751 214:12
215:23 216:3184 217:558 218:70 219:16 220:39
End of report
