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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 31 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120000
Prefixes after maximum aggregation: 76596
Unique aggregates announced to Internet: 57697
Total ASes present in the Internet Routing Table: 14513
Origin-only ASes present in the Internet Routing Table: 12615
Origin ASes announcing only one prefix: 5690
Transit ASes present in the Internet Routing Table: 1898
Transit-only ASes present in the Internet Routing Table: 65
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: 26
Number of addresses announced to Internet: 1180368745
Equivalent to 70 /8s, 90 /16s and 255 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55648
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20115
Total APNIC prefixes after maximum aggregation: 11850
Prefixes being announced from the APNIC address blocks: 18613
Unique aggregates announced from the APNIC address blocks: 11343
APNIC Region origin ASes present in the Internet Routing Table: 1721
APNIC Region origin ASes announcing only one prefix: 527
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: 14
Number of APNIC addresses announced to Internet: 93307552
Equivalent to 5 /8s, 143 /16s and 194 /24s
Percentage of available APNIC address space announced: 61.4
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: 47278
Prefixes being announced from the ARIN address blocks: 52471
Unique aggregates announced from the ARIN address blocks: 16161
ARIN Region origin ASes present in the Internet Routing Table: 8090
ARIN Region origin ASes announcing only one prefix: 2723
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: 186242240
Equivalent to 11 /8s, 25 /16s and 212 /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: 20623
Total RIPE prefixes after maximum aggregation: 15287
Prefixes being announced from the RIPE address blocks: 17246
Unique aggregates announced from the RIPE address blocks: 11546
RIPE Region origin ASes present in the Internet Routing Table: 4311
RIPE Region origin ASes announcing only one prefix: 2357
RIPE Region transit ASes present in the Internet Routing Table: 778
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122736832
Equivalent to 7 /8s, 80 /16s and 208 /24s
Percentage of available RIPE address space announced: 73.2
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: 5239
Total LACNIC prefixes after maximum aggregation: 2181
Prefixes being announced from the LACNIC address blocks: 4572
Unique aggregates announced from the LACNIC address blocks: 2971
LACNIC Region origin ASes present in the Internet Routing Table: 328
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11949056
Equivalent to 0 /8s, 182 /16s and 84 /24s
Percentage of available LACNIC address space announced: 71.2
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 1130 1184 824 Telstra Pty Ltd
703 410 368 321 UUNET
2907 391 1975 367 SINET Japan
2764 334 340 304 connect.com.au pty ltd
17557 330 24 130 Pakistan Telecom
7474 298 276 208 Optus Communications Pty Ltd
4134 295 2405 94 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 243 134 75 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
17676 130 1973 15 XTAGE CORPORATION
4716 129 737 123 TTnet
4739 122 56 111 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1602 8999 1180 UUNET Technologies, Inc.
7018 1413 7106 962 AT&T
3908 1195 1620 501 Supernet, Inc.
1239 960 3143 673 Sprint
852 682 1124 447 Telus Advanced Communications
1 667 8076 433 GENUITY
7843 587 400 235 Adelphia Corp.
7046 551 826 252 UUNET Technologies, Inc.
4323 528 472 168 Time Warner Communications, I
209 525 2103 334 Qwest
690 505 74 311 Merit Network
7066 493 204 253 Virginia Polytechnic Institut
6197 471 555 110 BellSouth Network Solutions,
18566 449 114 7 Covad Communications
705 436 150 190 UUNET Technologies, Inc.
2386 435 469 229 AT&T Data Communications Serv
6198 422 185 198 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
3549 394 707 292 Global Crossing
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 2301 668 UUNET - Commercial IP service
3301 312 1141 300 TeliaNet Sweden
3215 311 818 172 France Telecom Transpac
3320 254 1995 227 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
786 177 1873 177 The JANET IP Service
719 173 306 130 LANLINK autonomous system
5400 160 69 97 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
2856 130 1302 117 BTnet UK Regional network
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3269 112 753 62 TELECOM ITALIA
3246 105 358 102 Song Networks
5511 105 193 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 98 104 ImpSat
7303 226 36 54 Telecom Argentina Stet-France
8151 209 333 115 UniNet S.A. de C.V.
6503 156 191 107 AVANTEL, S.A.
11172 156 81 32 Servicios Alestra S.A de C.V
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 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
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 1195 694 Supernet, Inc.
7018 1413 451 AT&T
18566 449 442 Covad Communications
6197 471 361 BellSouth Network Solutions,
4323 528 360 Time Warner Communications, I
7843 587 352 Adelphia Corp.
1221 1130 306 Telstra Pty Ltd
7046 551 299 UUNET Technologies, Inc.
11492 300 299 Cable One
6347 377 298 SAVVIS Communications Corpora
4355 410 295 EarthLink, Inc.
1239 960 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4151 329 271 USDA
705 436 246 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
376 351 241 Reseau Interordinateurs Scien
7066 493 240 Virginia Polytechnic Institut
852 682 235 Telus Advanced Communications
1 667 234 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
172.0.193.128/26 3549 Global Crossing
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
192.243.36.0/23 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 /16:7228 /17:1569 /18:2849
/19:8037 /20:7924 /21:5677 /22:8632 /23:10326 /24:66206
/25:161 /26:176 /27:96 /28:78 /29:60 /30:96
/31:2 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1195 Supernet, Inc.
702 496 804 UUNET - Commercial IP service
7018 494 1413 AT&T
690 454 505 Merit Network
18566 444 449 Covad Communications
701 424 1602 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
7843 359 587 Adelphia Corp.
1239 353 960 Sprint
6197 350 471 BellSouth Network Solutions,
6198 336 422 BellSouth Network Solutions,
6140 307 319 ImpSat
11492 299 300 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 252 551 UUNET Technologies, Inc.
2386 238 435 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
4355 230 410 EarthLink, Inc.
20115 230 351 Charter Communications
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:636 13:1 15:6 17:2 20:8 24:792
25:1 32:82 34:1 38:38 40:19 44:1
57:15 61:472 62:485 63:1882 64:1402 65:1817
66:1404 67:204 68:240 69:36 80:320 81:84
128:130 129:185 130:38 131:73 132:11 133:4
134:144 135:4 136:194 137:112 138:101 139:72
140:122 141:103 142:98 143:45 144:76 145:16
146:262 147:85 148:263 149:75 150:42 151:95
152:254 153:43 154:3 155:104 156:41 157:45
158:120 159:136 160:29 161:57 162:135 163:81
164:260 165:140 166:86 167:304 168:392 169:56
170:288 171:8 192:5353 193:2404 194:1967 195:910
196:458 198:3600 199:3031 200:2859 202:3649 203:5067
204:3040 205:2096 206:2377 207:2449 208:2701 209:2761
210:705 211:320 212:935 213:717 214:22 215:22
216:3225 217:565 218:75 219:18
End of report
