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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 27 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121981
Prefixes after maximum aggregation: 77455
Unique aggregates announced to Internet: 57977
Total ASes present in the Internet Routing Table: 14718
Origin-only ASes present in the Internet Routing Table: 12777
Origin ASes announcing only one prefix: 5764
Transit ASes present in the Internet Routing Table: 1941
Transit-only ASes present in the Internet Routing Table: 68
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: 15
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: 1199990477
Equivalent to 71 /8s, 134 /16s and 102 /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: 57137
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20515
Total APNIC prefixes after maximum aggregation: 12038
Prefixes being announced from the APNIC address blocks: 18998
Unique aggregates announced from the APNIC address blocks: 11607
APNIC Region origin ASes present in the Internet Routing Table: 1738
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 294
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106531744
Equivalent to 6 /8s, 89 /16s and 139 /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: 74999
Total ARIN prefixes after maximum aggregation: 47656
Prefixes being announced from the ARIN address blocks: 53198
Unique aggregates announced from the ARIN address blocks: 16575
ARIN Region origin ASes present in the Internet Routing Table: 8194
ARIN Region origin ASes announcing only one prefix: 2762
ARIN Region transit ASes present in the Internet Routing Table: 780
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187727488
Equivalent to 11 /8s, 48 /16s and 126 /24s
Percentage of available ARIN address space announced: 69.9
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: 21143
Total RIPE prefixes after maximum aggregation: 15555
Prefixes being announced from the RIPE address blocks: 17682
Unique aggregates announced from the RIPE address blocks: 11056
RIPE Region origin ASes present in the Internet Routing Table: 4393
RIPE Region origin ASes announcing only one prefix: 2395
RIPE Region transit ASes present in the Internet Routing Table: 787
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127454592
Equivalent to 7 /8s, 152 /16s and 205 /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: 2206
Prefixes being announced from the LACNIC address blocks: 4661
Unique aggregates announced from the LACNIC address blocks: 3031
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 84
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: 12081920
Equivalent to 0 /8s, 184 /16s and 91 /24s
Percentage of available LACNIC address space announced: 72.0
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 1113 1135 812 Telstra Pty Ltd
703 410 368 316 UUNET
2907 388 1960 367 SINET Japan
17557 348 25 134 Pakistan Telecom
2764 327 341 294 connect.com.au pty ltd
7474 307 276 208 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 236 134 75 Videsh Sanchar Nigam Ltd. Aut
17676 231 3558 23 XTAGE CORPORATION
9583 223 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 151 9 15 World Net & Services Co., Ltd
9238 135 8 19 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1612 8888 1148 UUNET Technologies, Inc.
7018 1422 7189 967 AT&T
3908 1242 1589 484 Supernet, Inc.
1239 974 3134 687 Sprint
1 674 8087 437 GENUITY
852 601 1107 445 Telus Advanced Communications
7046 571 826 243 UUNET Technologies, Inc.
7843 563 402 208 Adelphia Corp.
4323 532 473 167 Time Warner Communications, I
4151 530 691 58 USDA
209 526 2092 334 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 465 475 246 AT&T Data Communications Serv
376 461 375 111 Reseau Interordinateurs Scien
705 450 165 196 UUNET Technologies, Inc.
6198 428 192 197 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 786 2249 650 UUNET - Commercial IP service
3301 316 1143 304 TeliaNet Sweden
3215 314 818 173 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 117 1299 107 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 161 82 33 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 109 3 37 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
1916 73 306 44 Fundacao de Amparo a Pesquisa
6147 73 62 21 Telefonica Del Peru
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 18 Empresas Publicas de Medellin
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
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
11830 60 4 21 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1242 758 Supernet, Inc.
18566 490 483 Covad Communications
4151 530 472 USDA
7018 1422 455 AT&T
6197 485 372 BellSouth Network Solutions,
4323 532 365 Time Warner Communications, I
7843 563 355 Adelphia Corp.
376 461 350 Reseau Interordinateurs Scien
7046 571 328 UUNET Technologies, Inc.
11492 309 308 Cable One
1221 1113 301 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 974 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 674 237 GENUITY
6198 428 231 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64513 PRIVATE 66.205.200.0/24 25752 Neopolitan Networks
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
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 /16:7359 /17:1596 /18:2894
/19:8166 /20:8079 /21:5815 /22:8806 /23:10529 /24:66938
/25:172 /26:184 /27:113 /28:108 /29:73 /30:180
/31:4 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 813 1242 Supernet, Inc.
7018 520 1422 AT&T
702 493 786 UUNET - Commercial IP service
18566 485 490 Covad Communications
701 476 1612 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 365 974 Sprint
6197 358 485 BellSouth Network Solutions,
6198 337 428 BellSouth Network Solutions,
7843 333 563 Adelphia Corp.
11492 308 309 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 274 571 UUNET Technologies, Inc.
6140 271 284 ImpSat
2386 262 465 AT&T Data Communications Serv
20115 257 382 Charter Communications
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:655 13:1 15:4 17:2 20:9 24:843
25:1 32:82 34:1 38:54 40:18 44:2
55:1 57:15 61:452 62:505 63:1909 64:1391
65:1888 66:1493 67:215 68:283 69:51 80:319
81:96 128:143 129:189 130:40 131:81 132:13
133:2 134:146 135:4 136:121 137:117 138:105
139:74 140:131 141:122 142:94 143:46 144:111
145:18 146:262 147:85 148:268 149:73 150:44
151:110 152:252 153:51 154:3 155:107 156:42
157:41 158:123 159:142 160:33 161:58 162:135
163:85 164:271 165:138 166:80 167:322 168:387
169:54 170:304 171:8 192:5287 193:2423 194:2005
195:971 196:469 198:3602 199:3204 200:2885 202:3610
203:5087 204:3028 205:2024 206:2403 207:2386 208:2693
209:2777 210:745 211:335 212:952 213:740 214:21
215:21 216:3205 217:594 218:80 219:14 220:52
End of report
