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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122251
Prefixes after maximum aggregation: 77714
Unique aggregates announced to Internet: 58858
Total ASes present in the Internet Routing Table: 14748
Origin-only ASes present in the Internet Routing Table: 12802
Origin ASes announcing only one prefix: 5773
Transit ASes present in the Internet Routing Table: 1946
Transit-only ASes present in the Internet Routing Table: 66
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: 17
Number of addresses announced to Internet: 1199490437
Equivalent to 71 /8s, 126 /16s and 197 /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: 57254
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20467
Total APNIC prefixes after maximum aggregation: 12051
Prefixes being announced from the APNIC address blocks: 18940
Unique aggregates announced from the APNIC address blocks: 11646
APNIC Region origin ASes present in the Internet Routing Table: 1740
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 289
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 106692256
Equivalent to 6 /8s, 91 /16s and 254 /24s
Percentage of available APNIC address space announced: 56.6
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: 75312
Total ARIN prefixes after maximum aggregation: 47893
Prefixes being announced from the ARIN address blocks: 53537
Unique aggregates announced from the ARIN address blocks: 16722
ARIN Region origin ASes present in the Internet Routing Table: 8206
ARIN Region origin ASes announcing only one prefix: 2769
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187665088
Equivalent to 11 /8s, 47 /16s and 138 /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: 21188
Total RIPE prefixes after maximum aggregation: 15567
Prefixes being announced from the RIPE address blocks: 17711
Unique aggregates announced from the RIPE address blocks: 11795
RIPE Region origin ASes present in the Internet Routing Table: 4407
RIPE Region origin ASes announcing only one prefix: 2397
RIPE Region transit ASes present in the Internet Routing Table: 795
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 127643648
Equivalent to 7 /8s, 155 /16s and 176 /24s
Percentage of available RIPE address space announced: 76.1
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: 5274
Total LACNIC prefixes after maximum aggregation: 2203
Prefixes being announced from the LACNIC address blocks: 4661
Unique aggregates announced from the LACNIC address blocks: 3028
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12213504
Equivalent to 0 /8s, 186 /16s and 93 /24s
Percentage of available LACNIC address space announced: 72.8
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 1108 1119 804 Telstra Pty Ltd
703 409 369 316 UUNET
2907 388 1960 367 SINET Japan
17557 359 26 133 Pakistan Telecom
2764 326 341 293 connect.com.au pty ltd
7474 306 276 208 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 263 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 234 134 75 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 216 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 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4716 128 735 122 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 1585 8873 1145 UUNET Technologies, Inc.
7018 1384 7166 959 AT&T
3908 1248 1590 485 Supernet, Inc.
1239 979 3153 692 Sprint
1 664 8087 435 GENUITY
852 598 1107 442 Telus Advanced Communications
7843 578 408 213 Adelphia Corp.
4323 535 473 168 Time Warner Communications, I
4151 531 691 59 USDA
209 530 2092 337 Qwest
18566 503 114 6 Covad Communications
690 499 73 309 Merit Network
6197 498 555 114 BellSouth Network Solutions,
3561 497 2304 342 Cable & Wireless USA
7066 491 204 254 Virginia Polytechnic Institut
2386 483 479 244 AT&T Data Communications Serv
705 450 165 196 UUNET Technologies, Inc.
6198 447 196 198 BellSouth Network Solutions,
4355 402 308 112 EarthLink, Inc.
3549 398 693 306 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 784 2231 647 UUNET - Commercial IP service
3301 315 1142 303 TeliaNet Sweden
3215 314 818 172 France Telecom Transpac
3320 265 1996 228 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 203 307 127 LANLINK autonomous system
5400 198 86 98 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 126 182 117 COLT Internet - International
12302 122 17 29 MobiFon S.A.
2856 117 1298 107 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 107 10 19 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 100 654 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 341 116 UniNet S.A. de C.V.
11172 161 66 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
11992 75 8 33 Integrated Systems
6147 74 62 20 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 21 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 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 61 4 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1248 763 Supernet, Inc.
18566 503 497 Covad Communications
4151 531 472 USDA
7018 1384 425 AT&T
6197 498 384 BellSouth Network Solutions,
4323 535 367 Time Warner Communications, I
7843 578 365 Adelphia Corp.
11492 322 319 Cable One
1221 1108 304 Telstra Pty Ltd
6347 371 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 979 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
6198 447 249 BellSouth Network Solutions,
4814 263 248 China Telecom (Group)
2386 483 239 AT&T Data Communications Serv
7066 491 237 Virginia Polytechnic Institut
1 664 229 GENUITY
17557 359 226 Pakistan Telecom
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
192.153.136.0/21 568 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 /11:13 /12:46
/13:92 /14:240 /15:446 /16:7341 /17:1608 /18:2899
/19:8190 /20:8124 /21:5821 /22:8849 /23:10591 /24:67246
/25:166 /26:187 /27:108 /28:80 /29:60 /30:57
/31:4 /32:55
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 819 1248 Supernet, Inc.
18566 498 503 Covad Communications
702 489 784 UUNET - Commercial IP service
7018 486 1384 AT&T
701 451 1585 UUNET Technologies, Inc.
690 448 499 Merit Network
7066 390 491 Virginia Polytechnic Institut
6197 366 498 BellSouth Network Solutions,
1239 365 979 Sprint
6198 357 447 BellSouth Network Solutions,
7843 340 578 Adelphia Corp.
11492 321 322 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 283 483 AT&T Data Communications Serv
6140 271 284 ImpSat
20115 269 397 Charter Communications
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 230 402 EarthLink, Inc.
27364 224 240 Armstrong Cable Services
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:653 13:1 15:4 17:2 20:9 24:855
25:1 32:90 34:1 38:61 40:18 44:2
55:1 57:16 61:452 62:507 63:1917 64:1402
65:1900 66:1465 67:214 68:287 69:54 80:330
81:101 128:147 129:223 130:40 131:85 132:11
133:2 134:147 135:4 136:121 137:116 138:100
139:74 140:138 141:123 142:94 143:48 144:88
145:18 146:264 147:85 148:270 149:73 150:43
151:110 152:253 153:51 154:3 155:107 156:42
157:42 158:124 159:140 160:34 161:60 162:134
163:86 164:305 165:141 166:80 167:321 168:393
169:54 170:307 171:8 192:5286 193:2387 194:2009
195:964 196:475 198:3611 199:3209 200:2891 202:3564
203:5089 204:3041 205:2027 206:2438 207:2438 208:2702
209:2829 210:730 211:335 212:970 213:753 214:21
215:21 216:3261 217:597 218:81 219:13 220:52
End of report
