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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 03 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76729
Unique aggregates announced to Internet: 57693
Total ASes present in the Internet Routing Table: 14535
Origin-only ASes present in the Internet Routing Table: 12623
Origin ASes announcing only one prefix: 5703
Transit ASes present in the Internet Routing Table: 1912
Transit-only ASes present in the Internet Routing Table: 68
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 24
Number of addresses announced to Internet: 1178712909
Equivalent to 70 /8s, 65 /16s and 187 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20019
Total APNIC prefixes after maximum aggregation: 11846
Prefixes being announced from the APNIC address blocks: 18512
Unique aggregates announced from the APNIC address blocks: 11317
APNIC Region origin ASes present in the Internet Routing Table: 1722
APNIC Region origin ASes announcing only one prefix: 530
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 92361888
Equivalent to 5 /8s, 129 /16s and 84 /24s
Percentage of available APNIC address space announced: 60.7
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: 74100
Total ARIN prefixes after maximum aggregation: 47380
Prefixes being announced from the ARIN address blocks: 52535
Unique aggregates announced from the ARIN address blocks: 16178
ARIN Region origin ASes present in the Internet Routing Table: 8098
ARIN Region origin ASes announcing only one prefix: 2725
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186425280
Equivalent to 11 /8s, 28 /16s and 159 /24s
Percentage of available ARIN address space announced: 69.4
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: 20665
Total RIPE prefixes after maximum aggregation: 15314
Prefixes being announced from the RIPE address blocks: 17293
Unique aggregates announced from the RIPE address blocks: 11554
RIPE Region origin ASes present in the Internet Routing Table: 4321
RIPE Region origin ASes announcing only one prefix: 2364
RIPE Region transit ASes present in the Internet Routing Table: 783
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122978240
Equivalent to 7 /8s, 84 /16s and 127 /24s
Percentage of available RIPE address space announced: 73.3
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: 5206
Total LACNIC prefixes after maximum aggregation: 2189
Prefixes being announced from the LACNIC address blocks: 4549
Unique aggregates announced from the LACNIC address blocks: 2958
LACNIC Region origin ASes present in the Internet Routing Table: 328
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11913728
Equivalent to 0 /8s, 181 /16s and 202 /24s
Percentage of available LACNIC address space announced: 71.0
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 1129 1184 824 Telstra Pty Ltd
703 408 368 320 UUNET
2907 390 1975 366 SINET Japan
17557 334 24 131 Pakistan Telecom
2764 333 340 303 connect.com.au pty ltd
7474 301 276 211 Optus Communications Pty Ltd
4134 295 2405 94 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 241 134 74 Videsh Sanchar Nigam Ltd. Aut
3786 235 709 204 DACOM Corporation
9583 207 33 13 Satyam Infoway Ltd.,
4766 190 1466 141 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
4765 148 9 13 World Net & Services Co., Ltd
9238 130 8 18 TATA ISP
9768 130 384 64 Korea Telecom
9800 130 189 32 CHINA UNICOM
4716 129 737 123 TTnet
4739 123 57 112 Commerical Internet eXchange
7657 122 25 84 The Internet Group Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1598 8935 1176 UUNET Technologies, Inc.
7018 1430 7124 968 AT&T
3908 1192 1603 501 Supernet, Inc.
1239 960 3143 673 Sprint
852 683 1124 447 Telus Advanced Communications
1 669 8093 435 GENUITY
7843 588 400 229 Adelphia Corp.
7046 551 826 252 UUNET Technologies, Inc.
4323 530 472 168 Time Warner Communications, I
209 527 2103 335 Qwest
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 472 555 110 BellSouth Network Solutions,
705 455 151 205 UUNET Technologies, Inc.
18566 453 114 7 Covad Communications
2386 437 469 230 AT&T Data Communications Serv
3561 436 2227 372 Cable & Wireless USA
6198 423 185 199 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
15290 394 215 177 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 804 2300 668 UUNET - Commercial IP service
3215 311 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 264 1996 228 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 214 400 199 SWIPnet Swedish IP Network
5515 213 783 174 Sonera Solution Autonomous Sy
719 205 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 155 42 146 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 119 1299 109 BTnet UK Regional network
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 177 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 287 98 103 ImpSat
7303 226 36 54 Telecom Argentina Stet-France
8151 208 333 114 UniNet S.A. de C.V.
11172 157 82 33 Servicios Alestra S.A de C.V
6503 156 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 111 3 39 Red Universitaria Nacional
10620 105 7 31 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 71 27 36 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 69 7 30 Integrated Systems
8065 68 6 15 Empresas Publicas de Medellin
4270 67 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
15034 60 5 31 TIBA SA
11830 59 4 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1192 691 Supernet, Inc.
7018 1430 462 AT&T
18566 453 446 Covad Communications
4323 530 362 Time Warner Communications, I
6197 472 362 BellSouth Network Solutions,
7843 588 359 Adelphia Corp.
1221 1129 305 Telstra Pty Ltd
11492 302 301 Cable One
7046 551 299 UUNET Technologies, Inc.
4355 410 295 EarthLink, Inc.
6347 367 288 SAVVIS Communications Corpora
1239 960 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 329 271 USDA
705 455 250 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 351 241 Reseau Interordinateurs Scien
7066 492 239 Virginia Polytechnic Institut
852 683 236 Telus Advanced Communications
1 669 234 GENUITY
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
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
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
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
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 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
/13:88 /14:233 /15:434 /16:7198 /17:1558 /18:2852
/19:8044 /20:7912 /21:5687 /22:8641 /23:10320 /24:66198
/25:164 /26:178 /27:105 /28:87 /29:66 /30:101
/31:2 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1192 Supernet, Inc.
7018 511 1430 AT&T
702 497 804 UUNET - Commercial IP service
18566 448 453 Covad Communications
690 447 498 Merit Network
701 424 1598 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 360 588 Adelphia Corp.
1239 352 960 Sprint
6197 351 472 BellSouth Network Solutions,
6198 337 423 BellSouth Network Solutions,
11492 301 302 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 275 287 ImpSat
7046 252 551 UUNET Technologies, Inc.
2386 239 437 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
20115 231 352 Charter Communications
4355 230 410 EarthLink, Inc.
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:638 13:1 15:6 17:2 20:8 24:789
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:470 62:492 63:1894 64:1373
65:1828 66:1407 67:206 68:243 69:38 80:315
81:83 128:126 129:185 130:38 131:73 132:11
133:4 134:144 135:4 136:194 137:113 138:101
139:70 140:132 141:104 142:95 143:45 144:73
145:16 146:262 147:85 148:262 149:75 150:42
151:96 152:254 153:43 154:3 155:105 156:41
157:45 158:120 159:136 160:29 161:53 162:135
163:78 164:274 165:140 166:84 167:305 168:392
169:58 170:290 171:8 192:5354 193:2415 194:1993
195:905 196:456 198:3604 199:3030 200:2833 202:3632
203:5055 204:3022 205:2105 206:2399 207:2443 208:2710
209:2786 210:703 211:318 212:915 213:714 214:22
215:22 216:3210 217:568 218:73 219:17
End of report
