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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 19 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121005
Prefixes after maximum aggregation: 77175
Unique aggregates announced to Internet: 57759
Total ASes present in the Internet Routing Table: 14650
Origin-only ASes present in the Internet Routing Table: 12724
Origin ASes announcing only one prefix: 5729
Transit ASes present in the Internet Routing Table: 1926
Transit-only ASes present in the Internet Routing Table: 65
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: 1196677389
Equivalent to 71 /8s, 83 /16s and 217 /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: 56378
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20298
Total APNIC prefixes after maximum aggregation: 11944
Prefixes being announced from the APNIC address blocks: 18878
Unique aggregates announced from the APNIC address blocks: 11606
APNIC Region origin ASes present in the Internet Routing Table: 1730
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106142624
Equivalent to 6 /8s, 83 /16s and 155 /24s
Percentage of available APNIC address space announced: 56.3
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: 74447
Total ARIN prefixes after maximum aggregation: 47558
Prefixes being announced from the ARIN address blocks: 52851
Unique aggregates announced from the ARIN address blocks: 16471
ARIN Region origin ASes present in the Internet Routing Table: 8162
ARIN Region origin ASes announcing only one prefix: 2753
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187091392
Equivalent to 11 /8s, 38 /16s and 201 /24s
Percentage of available ARIN address space announced: 69.7
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: 20957
Total RIPE prefixes after maximum aggregation: 15447
Prefixes being announced from the RIPE address blocks: 17490
Unique aggregates announced from the RIPE address blocks: 10964
RIPE Region origin ASes present in the Internet Routing Table: 4367
RIPE Region origin ASes announcing only one prefix: 2376
RIPE Region transit ASes present in the Internet Routing Table: 781
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 125963392
Equivalent to 7 /8s, 130 /16s and 12 /24s
Percentage of available RIPE address space announced: 75.1
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: 5290
Total LACNIC prefixes after maximum aggregation: 2226
Prefixes being announced from the LACNIC address blocks: 4612
Unique aggregates announced from the LACNIC address blocks: 2982
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: 71
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12033280
Equivalent to 0 /8s, 183 /16s and 157 /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 1118 1150 817 Telstra Pty Ltd
703 413 368 323 UUNET
2907 394 1993 371 SINET Japan
17557 339 24 130 Pakistan Telecom
2764 328 340 295 connect.com.au pty ltd
4134 306 2661 102 Data Communications Bureau
7474 304 276 209 Optus Communications Pty Ltd
4814 258 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 240 134 76 Videsh Sanchar Nigam Ltd. Aut
17676 228 3510 23 XTAGE CORPORATION
9583 217 33 13 Satyam Infoway Ltd.,
4766 205 2073 152 Korea Internet Exchange for "
9443 182 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 149 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 1569 8915 1158 UUNET Technologies, Inc.
7018 1422 7149 962 AT&T
3908 1212 1589 479 Supernet, Inc.
1239 965 3151 679 Sprint
1 667 8084 431 GENUITY
852 606 1107 445 Telus Advanced Communications
7046 572 827 240 UUNET Technologies, Inc.
7843 570 401 214 Adelphia Corp.
209 529 2108 336 Qwest
4323 528 472 168 Time Warner Communications, I
4151 522 691 59 USDA
690 498 73 308 Merit Network
7066 491 204 254 Virginia Polytechnic Institut
18566 477 113 6 Covad Communications
6197 476 555 113 BellSouth Network Solutions,
3561 466 2322 329 Cable & Wireless USA
705 447 165 194 UUNET Technologies, Inc.
2386 442 471 235 AT&T Data Communications Serv
6198 429 193 199 BellSouth Network Solutions,
4355 402 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 796 2282 661 UUNET - Commercial IP service
3301 314 1142 302 TeliaNet Sweden
3215 310 802 170 France Telecom Transpac
3320 264 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 215 369 197 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 188 781 162 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 149 42 147 Romania Data Systems S.A.
20858 146 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
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 286 98 104 ImpSat
7303 233 36 49 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 161 82 33 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 84 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 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 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 1212 733 Supernet, Inc.
18566 477 471 Covad Communications
4151 522 463 USDA
7018 1422 460 AT&T
6197 476 363 BellSouth Network Solutions,
4323 528 360 Time Warner Communications, I
7843 570 356 Adelphia Corp.
7046 572 332 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1118 301 Telstra Pty Ltd
4355 402 290 EarthLink, Inc.
6347 369 290 SAVVIS Communications Corpora
1239 965 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 447 253 UUNET Technologies, Inc.
4814 258 243 China Telecom (Group)
7066 491 237 Virginia Polytechnic Institut
1 667 236 GENUITY
6198 429 230 BellSouth Network Solutions,
22291 242 223 Charter Communications
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 /14:240 /15:446 /16:7336 /17:1581 /18:2869
/19:8114 /20:7985 /21:5732 /22:8734 /23:10440 /24:66613
/25:168 /26:171 /27:99 /28:84 /29:58 /30:102
/31:2 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 790 1212 Supernet, Inc.
7018 524 1422 AT&T
702 491 796 UUNET - Commercial IP service
18566 472 477 Covad Communications
690 447 498 Merit Network
701 419 1569 UUNET Technologies, Inc.
7066 390 491 Virginia Polytechnic Institut
1239 360 965 Sprint
6197 352 476 BellSouth Network Solutions,
7843 340 570 Adelphia Corp.
6198 337 429 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 278 572 UUNET Technologies, Inc.
6140 274 286 ImpSat
2386 240 442 AT&T Data Communications Serv
20115 240 363 Charter Communications
3215 237 310 France Telecom Transpac
7303 232 233 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:642 13:1 15:4 17:2 20:9 24:811
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:458 62:496 63:1907 64:1389
65:1864 66:1411 67:213 68:279 69:48 80:319
81:89 128:143 129:186 130:40 131:81 132:11
133:2 134:143 135:4 136:194 137:116 138:104
139:122 140:101 141:109 142:93 143:46 144:106
145:18 146:262 147:85 148:268 149:74 150:43
151:96 152:252 153:43 154:3 155:106 156:41
157:39 158:122 159:139 160:34 161:55 162:134
163:82 164:264 165:139 166:81 167:306 168:393
169:55 170:305 171:8 192:5281 193:2400 194:2002
195:945 196:457 198:3594 199:3198 200:2845 202:3656
203:5056 204:3014 205:2021 206:2402 207:2396 208:2687
209:2789 210:727 211:321 212:947 213:718 214:21
215:22 216:3225 217:596 218:78 219:14 220:48
End of report
