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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 28 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123933
Prefixes after maximum aggregation: 77351
Unique aggregates announced to Internet: 58031
Total ASes present in the Internet Routing Table: 14725
Origin-only ASes present in the Internet Routing Table: 12787
Origin ASes announcing only one prefix: 5766
Transit ASes present in the Internet Routing Table: 1938
Transit-only ASes present in the Internet Routing Table: 67
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 20
Number of addresses announced to Internet: 1200072597
Equivalent to 71 /8s, 135 /16s and 167 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 58961
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22744
Total APNIC prefixes after maximum aggregation: 12048
Prefixes being announced from the APNIC address blocks: 21237
Unique aggregates announced from the APNIC address blocks: 11631
APNIC Region origin ASes present in the Internet Routing Table: 1741
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106605800
Equivalent to 6 /8s, 90 /16s and 172 /24s
Percentage of available APNIC address space announced: 56.5
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74719
Total ARIN prefixes after maximum aggregation: 47546
Prefixes being announced from the ARIN address blocks: 53043
Unique aggregates announced from the ARIN address blocks: 16593
ARIN Region origin ASes present in the Internet Routing Table: 8190
ARIN Region origin ASes announcing only one prefix: 2763
ARIN Region transit ASes present in the Internet Routing Table: 783
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187787008
Equivalent to 11 /8s, 49 /16s and 103 /24s
Percentage of available ARIN address space announced: 70.0
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: 21150
Total RIPE prefixes after maximum aggregation: 15548
Prefixes being announced from the RIPE address blocks: 17683
Unique aggregates announced from the RIPE address blocks: 11063
RIPE Region origin ASes present in the Internet Routing Table: 4399
RIPE Region origin ASes announcing only one prefix: 2397
RIPE Region transit ASes present in the Internet Routing Table: 785
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127460480
Equivalent to 7 /8s, 152 /16s and 228 /24s
Percentage of available RIPE address space announced: 76.0
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5310
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 4667
Unique aggregates announced from the LACNIC address blocks: 3030
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12071168
Equivalent to 0 /8s, 184 /16s and 49 /24s
Percentage of available LACNIC address space announced: 71.9
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
4788 2328 125 12 Telekom Malaysia
1221 1113 1135 811 Telstra Pty Ltd
703 410 368 316 UUNET
2907 389 1960 368 SINET Japan
17557 346 25 137 Pakistan Telecom
2764 327 341 294 connect.com.au pty ltd
7474 305 276 207 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 264 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 235 134 74 Videsh Sanchar Nigam Ltd. Aut
17676 231 3558 23 XTAGE CORPORATION
9583 222 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 151 9 15 World Net & Services Co., Ltd
9238 136 8 17 TATA ISP
4716 128 735 122 TTnet
4739 128 57 116 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1612 8888 1148 UUNET Technologies, Inc.
7018 1387 7151 958 AT&T
3908 1244 1590 485 Supernet, Inc.
1239 975 3134 688 Sprint
1 674 8087 437 GENUITY
852 600 1107 445 Telus Advanced Communications
7843 565 403 195 Adelphia Corp.
7046 560 826 244 UUNET Technologies, Inc.
4323 533 473 167 Time Warner Communications, I
4151 531 691 58 USDA
209 528 2092 335 Qwest
3561 499 2343 340 Cable & Wireless USA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 490 114 7 Covad Communications
6197 485 555 113 BellSouth Network Solutions,
2386 478 477 249 AT&T Data Communications Serv
376 462 375 111 Reseau Interordinateurs Scien
705 452 166 198 UUNET Technologies, Inc.
6198 432 193 199 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 788 2249 651 UUNET - Commercial IP service
3301 316 1143 304 TeliaNet Sweden
3215 315 818 173 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 202 307 129 LANLINK autonomous system
5400 197 70 97 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 42 149 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
8220 125 182 116 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1299 108 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 360 101 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 213 325 115 UniNet S.A. de C.V.
11172 160 66 32 Servicios Alestra S.A de C.V
6503 158 207 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 73 62 21 Telefonica Del Peru
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 18 Empresas Publicas de Medellin
1916 71 290 43 Fundacao de Amparo a Pesquisa
15311 71 27 36 Telefonica Empresas
11992 69 7 30 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 62 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1244 759 Supernet, Inc.
18566 490 483 Covad Communications
4151 531 473 USDA
701 1612 464 UUNET Technologies, Inc.
7018 1387 429 AT&T
6197 485 372 BellSouth Network Solutions,
7843 565 370 Adelphia Corp.
4323 533 366 Time Warner Communications, I
376 462 351 Reseau Interordinateurs Scien
7046 560 316 UUNET Technologies, Inc.
11492 309 308 Cable One
1221 1113 302 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 975 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 452 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 674 237 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
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
192.44.0.0/19 702 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
192.153.136.0/21 568 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 /8:18 /9:3 /10:8 /11:12 /12:46
/13:93 /14:238 /15:445 /16:7358 /17:1597 /18:2897
/19:8166 /20:8077 /21:5791 /22:8811 /23:10566 /24:67786
/25:325 /26:412 /27:459 /28:426 /29:127 /30:169
/31:4 /32:99
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
4788 2006 2328 Telekom Malaysia
3908 815 1244 Supernet, Inc.
702 493 788 UUNET - Commercial IP service
7018 491 1387 AT&T
18566 485 490 Covad Communications
701 476 1612 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 365 975 Sprint
6197 358 485 BellSouth Network Solutions,
6198 342 432 BellSouth Network Solutions,
7843 333 565 Adelphia Corp.
11492 308 309 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 274 478 AT&T Data Communications Serv
6140 271 284 ImpSat
7046 263 560 UUNET Technologies, Inc.
20115 257 382 Charter Communications
3215 240 315 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:654 13:1 15:4 17:2 20:9 24:832
25:1 32:83 34:1 38:56 40:18 44:2
55:1 57:15 61:453 62:508 63:1909 64:1389
65:1892 66:1458 67:215 68:285 69:53 80:317
81:100 128:90 129:187 130:40 131:81 132:13
133:2 134:146 135:4 136:121 137:117 138:106
139:74 140:133 141:122 142:94 143:46 144:110
145:18 146:262 147:85 148:268 149:73 150:44
151:110 152:252 153:51 154:3 155:107 156:42
157:41 158:123 159:142 160:33 161:58 162:134
163:85 164:270 165:138 166:80 167:322 168:387
169:54 170:304 171:8 192:5288 193:2422 194:2002
195:962 196:469 198:3594 199:3213 200:2890 202:3713
203:5222 204:3026 205:2019 206:2332 207:2369 208:2696
209:2781 210:1175 211:336 212:957 213:746 214:21
215:21 216:3207 217:596 218:80 219:359 220:52
End of report
