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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121327
Prefixes after maximum aggregation: 77304
Unique aggregates announced to Internet: 57837
Total ASes present in the Internet Routing Table: 14670
Origin-only ASes present in the Internet Routing Table: 12744
Origin ASes announcing only one prefix: 5739
Transit ASes present in the Internet Routing Table: 1926
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: 14
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: 1197732621
Equivalent to 71 /8s, 99 /16s and 243 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56613
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20351
Total APNIC prefixes after maximum aggregation: 11988
Prefixes being announced from the APNIC address blocks: 18920
Unique aggregates announced from the APNIC address blocks: 11658
APNIC Region origin ASes present in the Internet Routing Table: 1734
APNIC Region origin ASes announcing only one prefix: 515
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: 106364832
Equivalent to 6 /8s, 86 /16s and 255 /24s
Percentage of available APNIC address space announced: 56.4
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74672
Total ARIN prefixes after maximum aggregation: 47600
Prefixes being announced from the ARIN address blocks: 52962
Unique aggregates announced from the ARIN address blocks: 16496
ARIN Region origin ASes present in the Internet Routing Table: 8169
ARIN Region origin ASes announcing only one prefix: 2761
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187315392
Equivalent to 11 /8s, 42 /16s and 52 /24s
Percentage of available ARIN address space announced: 69.8
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: 20998
Total RIPE prefixes after maximum aggregation: 15498
Prefixes being announced from the RIPE address blocks: 17547
Unique aggregates announced from the RIPE address blocks: 11006
RIPE Region origin ASes present in the Internet Routing Table: 4374
RIPE Region origin ASes announcing only one prefix: 2380
RIPE Region transit ASes present in the Internet Routing Table: 777
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 126129024
Equivalent to 7 /8s, 132 /16s and 147 /24s
Percentage of available RIPE address space announced: 75.2
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: 5293
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 4609
Unique aggregates announced from the LACNIC address blocks: 2990
LACNIC Region origin ASes present in the Internet Routing Table: 329
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: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12030208
Equivalent to 0 /8s, 183 /16s and 145 /24s
Percentage of available LACNIC address space announced: 71.7
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 1115 1151 816 Telstra Pty Ltd
703 410 368 320 UUNET
2907 395 1994 372 SINET Japan
17557 339 24 130 Pakistan Telecom
2764 328 340 295 connect.com.au pty ltd
7474 305 276 208 Optus Communications Pty Ltd
4134 297 2533 116 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
17676 229 3526 24 XTAGE CORPORATION
4755 227 133 71 Videsh Sanchar Nigam Ltd. Aut
9583 218 33 13 Satyam Infoway Ltd.,
4766 205 2073 152 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 132 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 1565 8916 1154 UUNET Technologies, Inc.
7018 1429 7152 967 AT&T
3908 1219 1589 481 Supernet, Inc.
1239 967 3134 682 Sprint
1 667 8084 431 GENUITY
852 605 1107 445 Telus Advanced Communications
7046 575 827 243 UUNET Technologies, Inc.
7843 570 402 209 Adelphia Corp.
4323 529 473 169 Time Warner Communications, I
209 525 2106 334 Qwest
4151 523 691 58 USDA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 481 113 6 Covad Communications
6197 478 555 114 BellSouth Network Solutions,
3561 466 2322 326 Cable & Wireless USA
376 463 375 111 Reseau Interordinateurs Scien
705 447 165 194 UUNET Technologies, Inc.
2386 444 471 237 AT&T Data Communications Serv
6198 430 193 200 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 785 2247 650 UUNET - Commercial IP service
3301 314 1142 302 TeliaNet Sweden
3215 312 818 171 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 217 369 198 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 160 69 95 BT Ignite European Backbone
8708 149 42 147 Romania Data Systems S.A.
20858 145 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 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 358 102 Song Networks
3352 100 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 283 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 162 82 34 Servicios Alestra S.A de C.V
6503 157 191 110 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 74 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
8065 73 6 19 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 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 738 Supernet, Inc.
18566 481 475 Covad Communications
4151 523 465 USDA
7018 1429 462 AT&T
6197 478 364 BellSouth Network Solutions,
7843 570 361 Adelphia Corp.
4323 529 360 Time Warner Communications, I
376 463 352 Reseau Interordinateurs Scien
7046 575 332 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1115 299 Telstra Pty Ltd
6347 370 291 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 967 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 447 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 667 236 GENUITY
6198 430 230 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
65520 PRIVATE 202.36.16.0/21 9889 Web InterNet, ISP
65520 PRIVATE 202.36.24.0/22 9889 Web InterNet, ISP
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 /8:18 /9:3 /10:8 /11:12 /12:44
/13:93 /14:238 /15:445 /16:7345 /17:1587 /18:2880
/19:8137 /20:8024 /21:5749 /22:8754 /23:10485 /24:66634
/25:170 /26:173 /27:102 /28:94 /29:61 /30:174
/31:2 /32:95
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 791 1219 Supernet, Inc.
7018 526 1429 AT&T
702 489 785 UUNET - Commercial IP service
18566 476 481 Covad Communications
690 447 498 Merit Network
701 420 1565 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
1239 361 967 Sprint
6197 353 478 BellSouth Network Solutions,
7843 340 570 Adelphia Corp.
6198 338 430 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 278 575 UUNET Technologies, Inc.
6140 271 283 ImpSat
20115 271 396 Charter Communications
2386 241 444 AT&T Data Communications Serv
7303 239 240 Telecom Argentina Stet-France
3215 238 312 France Telecom Transpac
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:642 13:1 15:4 17:2 20:9 24:833
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:460 62:501 63:1901 64:1378
65:1870 66:1415 67:214 68:289 69:51 80:325
81:88 128:143 129:187 130:40 131:81 132:13
133:2 134:145 135:4 136:193 137:117 138:104
139:72 140:102 141:110 142:94 143:46 144:106
145:18 146:262 147:85 148:267 149:74 150:44
151:96 152:252 153:51 154:3 155:106 156:41
157:39 158:123 159:141 160:34 161:55 162:132
163:83 164:268 165:140 166:81 167:305 168:393
169:54 170:304 171:8 192:5286 193:2420 194:2004
195:958 196:458 198:3591 199:3200 200:2836 202:3630
203:5050 204:3018 205:2037 206:2405 207:2389 208:2693
209:2796 210:732 211:322 212:951 213:722 214:21
215:22 216:3190 217:597 218:78 219:14 220:50
End of report
