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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 20 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121083
Prefixes after maximum aggregation: 77206
Unique aggregates announced to Internet: 57750
Total ASes present in the Internet Routing Table: 14658
Origin-only ASes present in the Internet Routing Table: 12739
Origin ASes announcing only one prefix: 5743
Transit ASes present in the Internet Routing Table: 1919
Transit-only ASes present in the Internet Routing Table: 66
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: 1180839181
Equivalent to 70 /8s, 98 /16s and 45 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 57.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56423
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20332
Total APNIC prefixes after maximum aggregation: 11948
Prefixes being announced from the APNIC address blocks: 18911
Unique aggregates announced from the APNIC address blocks: 11629
APNIC Region origin ASes present in the Internet Routing Table: 1731
APNIC Region origin ASes announcing only one prefix: 518
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: 15
Number of APNIC addresses announced to Internet: 106293664
Equivalent to 6 /8s, 85 /16s and 233 /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: 74561
Total ARIN prefixes after maximum aggregation: 47573
Prefixes being announced from the ARIN address blocks: 52854
Unique aggregates announced from the ARIN address blocks: 16447
ARIN Region origin ASes present in the Internet Routing Table: 8164
ARIN Region origin ASes announcing only one prefix: 2761
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187173056
Equivalent to 11 /8s, 40 /16s and 8 /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: 20917
Total RIPE prefixes after maximum aggregation: 15462
Prefixes being announced from the RIPE address blocks: 17495
Unique aggregates announced from the RIPE address blocks: 10970
RIPE Region origin ASes present in the Internet Routing Table: 4371
RIPE Region origin ASes announcing only one prefix: 2381
RIPE Region transit ASes present in the Internet Routing Table: 779
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 126069120
Equivalent to 7 /8s, 131 /16s and 169 /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: 5260
Total LACNIC prefixes after maximum aggregation: 2223
Prefixes being announced from the LACNIC address blocks: 4581
Unique aggregates announced from the LACNIC address blocks: 2998
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: 12050432
Equivalent to 0 /8s, 183 /16s and 224 /24s
Percentage of available LACNIC address space announced: 71.8
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 1150 813 Telstra Pty Ltd
703 411 368 321 UUNET
2907 395 1994 372 SINET Japan
17557 338 24 131 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 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 230 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 228 3510 23 XTAGE CORPORATION
9583 218 33 13 Satyam Infoway Ltd.,
4766 205 2073 152 Korea Internet Exchange for "
9443 182 57 76 Primus Telecommunications
9800 166 205 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 1568 8916 1158 UUNET Technologies, Inc.
7018 1425 7151 964 AT&T
3908 1209 1589 479 Supernet, Inc.
1239 969 3134 683 Sprint
1 667 8084 431 GENUITY
852 606 1107 445 Telus Advanced Communications
7046 575 827 243 UUNET Technologies, Inc.
7843 568 401 213 Adelphia Corp.
209 528 2108 336 Qwest
4323 528 472 168 Time Warner Communications, I
4151 518 691 61 USDA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 479 113 6 Covad Communications
6197 477 555 114 BellSouth Network Solutions,
3561 465 2322 328 Cable & Wireless USA
376 462 375 111 Reseau Interordinateurs Scien
2386 442 471 235 AT&T Data Communications Serv
705 439 149 186 UUNET Technologies, Inc.
6198 429 193 199 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 794 2279 659 UUNET - Commercial IP service
3301 314 1142 302 TeliaNet Sweden
3215 310 818 171 France Telecom Transpac
3320 264 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 218 369 199 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 158 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 119 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 266 101 114 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 112 3 40 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
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 1209 730 Supernet, Inc.
18566 479 473 Covad Communications
7018 1425 461 AT&T
4151 518 457 USDA
6197 477 363 BellSouth Network Solutions,
4323 528 360 Time Warner Communications, I
7843 568 355 Adelphia Corp.
376 462 351 Reseau Interordinateurs Scien
7046 575 332 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1115 302 Telstra Pty Ltd
6347 370 291 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 969 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 439 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 667 236 GENUITY
6198 429 230 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 /8:17 /9:3 /10:8 /11:12 /12:44
/13:93 /14:240 /15:446 /16:7340 /17:1583 /18:2877
/19:8123 /20:8012 /21:5733 /22:8727 /23:10458 /24:66496
/25:171 /26:171 /27:104 /28:94 /29:60 /30:174
/31:2 /32:95
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 790 1209 Supernet, Inc.
7018 524 1425 AT&T
702 491 794 UUNET - Commercial IP service
18566 474 479 Covad Communications
690 447 498 Merit Network
701 417 1568 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
1239 361 969 Sprint
6197 353 477 BellSouth Network Solutions,
7843 338 568 Adelphia Corp.
6198 337 429 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 278 575 UUNET Technologies, Inc.
6140 254 266 ImpSat
20115 241 364 Charter Communications
2386 240 442 AT&T Data Communications Serv
3215 236 310 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 24:810
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:460 62:497 63:1905 64:1376
65:1865 66:1411 67:214 68:286 69:48 80:317
81:88 128:143 129:187 130:40 131:81 132:13
133:2 134:144 135:4 136:192 137:116 138:104
139:70 140:101 141:109 142:94 143:46 144:106
145:18 146:257 147:85 148:268 149:74 150:44
151:96 152:252 153:43 154:3 155:106 156:41
157:39 158:123 159:140 160:34 161:53 162:134
163:83 164:267 165:139 166:81 167:305 168:393
169:55 170:304 171:8 192:5287 193:2411 194:2005
195:942 196:458 198:3596 199:3195 200:2812 202:3651
203:5049 204:3013 205:2018 206:2395 207:2393 208:2691
209:2794 210:728 211:318 212:947 213:720 214:21
215:22 216:3197 217:596 218:78 219:14 220:50
End of report
