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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 08 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120528
Prefixes after maximum aggregation: 76984
Unique aggregates announced to Internet: 58116
Total ASes present in the Internet Routing Table: 14572
Origin-only ASes present in the Internet Routing Table: 12637
Origin ASes announcing only one prefix: 5716
Transit ASes present in the Internet Routing Table: 1935
Transit-only ASes present in the Internet Routing Table: 67
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 the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1192420941
Equivalent to 71 /8s, 18 /16s and 230 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 56027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20314
Total APNIC prefixes after maximum aggregation: 11991
Prefixes being announced from the APNIC address blocks: 18838
Unique aggregates announced from the APNIC address blocks: 11538
APNIC Region origin ASes present in the Internet Routing Table: 1726
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 295
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 105179808
Equivalent to 6 /8s, 68 /16s and 234 /24s
Percentage of available APNIC address space announced: 69.2
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: 74202
Total ARIN prefixes after maximum aggregation: 47444
Prefixes being announced from the ARIN address blocks: 52603
Unique aggregates announced from the ARIN address blocks: 16221
ARIN Region origin ASes present in the Internet Routing Table: 8117
ARIN Region origin ASes announcing only one prefix: 2739
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186578624
Equivalent to 11 /8s, 30 /16s and 246 /24s
Percentage of available ARIN address space announced: 69.5
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: 20749
Total RIPE prefixes after maximum aggregation: 15351
Prefixes being announced from the RIPE address blocks: 17376
Unique aggregates announced from the RIPE address blocks: 11611
RIPE Region origin ASes present in the Internet Routing Table: 4336
RIPE Region origin ASes announcing only one prefix: 2371
RIPE Region transit ASes present in the Internet Routing Table: 790
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123229376
Equivalent to 7 /8s, 88 /16s and 84 /24s
Percentage of available RIPE address space announced: 73.5
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5252
Total LACNIC prefixes after maximum aggregation: 2198
Prefixes being announced from the LACNIC address blocks: 4600
Unique aggregates announced from the LACNIC address blocks: 2976
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
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: 10
Number of LACNIC addresses announced to Internet: 11964928
Equivalent to 0 /8s, 182 /16s and 146 /24s
Percentage of available LACNIC address space announced: 71.3
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 1126 1183 822 Telstra Pty Ltd
703 409 368 320 UUNET
2907 387 1975 366 SINET Japan
17557 336 24 133 Pakistan Telecom
2764 331 340 300 connect.com.au pty ltd
7474 302 276 210 Optus Communications Pty Ltd
4134 301 2525 100 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 244 133 75 Videsh Sanchar Nigam Ltd. Aut
3786 241 775 207 DACOM Corporation
17676 224 3477 26 XTAGE CORPORATION
9583 213 33 13 Satyam Infoway Ltd.,
4766 199 2071 148 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 13 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
4739 125 57 114 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1605 8936 1181 UUNET Technologies, Inc.
7018 1430 7124 971 AT&T
3908 1219 1602 492 Supernet, Inc.
1239 966 3141 677 Sprint
852 684 1107 445 Telus Advanced Communications
1 668 8092 433 GENUITY
7843 574 399 221 Adelphia Corp.
7046 563 818 252 UUNET Technologies, Inc.
209 529 2105 338 Qwest
4323 528 472 168 Time Warner Communications, I
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 475 555 113 BellSouth Network Solutions,
18566 458 114 7 Covad Communications
705 439 150 190 UUNET Technologies, Inc.
2386 437 469 236 AT&T Data Communications Serv
3561 432 2227 368 Cable & Wireless USA
6198 430 191 197 BellSouth Network Solutions,
4355 406 309 114 EarthLink, Inc.
15290 392 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 800 2284 664 UUNET - Commercial IP service
3215 312 818 172 France Telecom Transpac
3301 311 1141 299 TeliaNet Sweden
3320 261 1995 224 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
1257 212 384 197 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 204 306 130 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 150 42 147 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 123 174 114 COLT Internet - International
2856 119 1299 109 BTnet UK Regional network
3246 118 378 115 Song Networks
3269 111 751 61 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 103 ImpSat
7303 233 36 54 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 157 82 33 Servicios Alestra S.A de C.V
6503 156 191 109 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 106 7 32 TVCABLE BOGOTA
6147 79 62 21 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
8065 69 6 15 Empresas Publicas de Medellin
11992 69 7 30 Integrated Systems
7080 64 4 1 Electronica y Comunicaciones
7984 60 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1219 727 Supernet, Inc.
7018 1430 459 AT&T
18566 458 451 Covad Communications
6197 475 362 BellSouth Network Solutions,
4323 528 360 Time Warner Communications, I
7843 574 353 Adelphia Corp.
7046 563 311 UUNET Technologies, Inc.
11492 307 306 Cable One
1221 1126 304 Telstra Pty Ltd
4151 358 300 USDA
4355 406 292 EarthLink, Inc.
1239 966 289 Sprint
6347 368 289 SAVVIS Communications Corpora
22927 282 268 TELEFONICA DE ARGENTINA
705 439 249 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
852 684 239 Telus Advanced Communications
7066 492 239 Virginia Polytechnic Institut
1 668 235 GENUITY
6198 430 233 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64520 PRIVATE 158.15.0.0/16 721 DLA Systems Automati
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
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
192.83.16.0/20 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
/13:92 /14:241 /15:440 /16:7328 /17:1567 /18:2866
/19:8070 /20:7961 /21:5715 /22:8676 /23:10396 /24:66356
/25:171 /26:178 /27:94 /28:83 /29:60 /30:100
/31:2 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 796 1219 Supernet, Inc.
7018 517 1430 AT&T
702 495 800 UUNET - Commercial IP service
18566 453 458 Covad Communications
690 447 498 Merit Network
701 426 1605 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
1239 357 966 Sprint
6197 351 475 BellSouth Network Solutions,
7843 345 574 Adelphia Corp.
6198 341 430 BellSouth Network Solutions,
11492 306 307 Cable One
22927 281 282 TELEFONICA DE ARGENTINA
6140 272 284 ImpSat
7046 265 563 UUNET Technologies, Inc.
2386 239 437 AT&T Data Communications Serv
3215 238 312 France Telecom Transpac
20115 236 357 Charter Communications
7303 232 233 Telecom Argentina Stet-France
4355 230 406 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:635 13:1 15:6 17:2 20:9 24:800
25:1 32:82 34:1 38:40 40:19 44:1
55:1 57:15 61:473 62:493 63:1898 64:1392
65:1851 66:1387 67:211 68:256 69:42 80:313
81:86 128:141 129:185 130:37 131:73 132:11
133:2 134:142 135:4 136:194 137:114 138:103
139:70 140:130 141:104 142:92 143:45 144:72
145:17 146:262 147:86 148:261 149:75 150:41
151:96 152:254 153:44 154:3 155:105 156:39
157:44 158:123 159:137 160:32 161:50 162:134
163:80 164:268 165:141 166:84 167:305 168:378
169:57 170:294 171:8 192:5358 193:2414 194:2002
195:933 196:454 198:3588 199:3058 200:2847 202:3623
203:5059 204:3017 205:2096 206:2391 207:2416 208:2702
209:2792 210:713 211:321 212:935 213:719 214:22
215:21 216:3211 217:574 218:76 219:18 220:44
End of report
