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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 120921
Prefixes after maximum aggregation: 77080
Unique aggregates announced to Internet: 58430
Total ASes present in the Internet Routing Table: 14610
Origin-only ASes present in the Internet Routing Table: 12673
Origin ASes announcing only one prefix: 5725
Transit ASes present in the Internet Routing Table: 1937
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 23
Number of addresses announced to Internet: 1193860429
Equivalent to 71 /8s, 40 /16s and 221 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 56211
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20401
Total APNIC prefixes after maximum aggregation: 12000
Prefixes being announced from the APNIC address blocks: 18887
Unique aggregates announced from the APNIC address blocks: 11562
APNIC Region origin ASes present in the Internet Routing Table: 1724
APNIC Region origin ASes announcing only one prefix: 519
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: 105760928
Equivalent to 6 /8s, 77 /16s and 200 /24s
Percentage of available APNIC address space announced: 69.6
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74400
Total ARIN prefixes after maximum aggregation: 47478
Prefixes being announced from the ARIN address blocks: 52740
Unique aggregates announced from the ARIN address blocks: 16453
ARIN Region origin ASes present in the Internet Routing Table: 8141
ARIN Region origin ASes announcing only one prefix: 2751
ARIN Region transit ASes present in the Internet Routing Table: 775
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 186775744
Equivalent to 11 /8s, 33 /16s and 248 /24s
Percentage of available ARIN address space announced: 69.6
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: 20837
Total RIPE prefixes after maximum aggregation: 15401
Prefixes being announced from the RIPE address blocks: 17465
Unique aggregates announced from the RIPE address blocks: 11631
RIPE Region origin ASes present in the Internet Routing Table: 4353
RIPE Region origin ASes announcing only one prefix: 2372
RIPE Region transit ASes present in the Internet Routing Table: 783
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 123860928
Equivalent to 7 /8s, 97 /16s and 247 /24s
Percentage of available RIPE address space announced: 73.8
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: 5272
Total LACNIC prefixes after maximum aggregation: 2201
Prefixes being announced from the LACNIC address blocks: 4619
Unique aggregates announced from the LACNIC address blocks: 2977
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: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12021248
Equivalent to 0 /8s, 183 /16s and 110 /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 1117 1167 814 Telstra Pty Ltd
703 406 368 317 UUNET
2907 388 1975 367 SINET Japan
17557 339 24 130 Pakistan Telecom
2764 328 340 296 connect.com.au pty ltd
4134 306 2647 102 Data Communications Bureau
7474 303 276 210 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 242 775 208 DACOM Corporation
4755 242 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 225 3493 26 XTAGE CORPORATION
9583 215 33 13 Satyam Infoway Ltd.,
4766 205 2072 152 Korea Internet Exchange for "
9443 185 57 76 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 14 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
4716 129 737 123 TTnet
9768 129 384 64 Korea Telecom
4739 125 57 114 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1599 8937 1177 UUNET Technologies, Inc.
7018 1422 7126 963 AT&T
3908 1216 1594 489 Supernet, Inc.
1239 962 3148 674 Sprint
1 667 8093 432 GENUITY
852 607 1107 446 Telus Advanced Communications
7843 573 401 214 Adelphia Corp.
7046 564 827 242 UUNET Technologies, Inc.
4323 529 472 168 Time Warner Communications, I
4151 523 691 58 USDA
209 521 2108 334 Qwest
690 498 73 308 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 476 555 113 BellSouth Network Solutions,
18566 468 114 7 Covad Communications
3561 466 2322 329 Cable & Wireless USA
705 447 166 196 UUNET Technologies, Inc.
2386 437 470 228 AT&T Data Communications Serv
6198 433 193 199 BellSouth Network Solutions,
4355 407 309 114 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 796 2281 660 UUNET - Commercial IP service
3301 313 1141 301 TeliaNet Sweden
3215 311 818 172 France Telecom Transpac
3320 262 1996 225 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 209 384 198 SWIPnet Swedish IP Network
5515 208 783 172 Sonera Solution Autonomous Sy
719 202 306 129 LANLINK autonomous system
786 179 1874 179 The JANET IP Service
5400 158 69 95 BT Ignite European Backbone
8708 150 42 148 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 123 174 114 COLT Internet - International
2856 121 1299 111 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 358 101 Song Networks
5511 101 177 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 285 98 104 ImpSat
7303 233 36 49 Telecom Argentina Stet-France
8151 209 332 115 UniNet S.A. de C.V.
11172 160 82 33 Servicios Alestra S.A de C.V
6503 156 191 109 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 111 3 39 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 85 62 21 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 71 4 22 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
7984 65 11 41 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
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 1216 727 Supernet, Inc.
4151 523 465 USDA
18566 468 461 Covad Communications
7018 1422 459 AT&T
6197 476 363 BellSouth Network Solutions,
4323 529 361 Time Warner Communications, I
7843 573 359 Adelphia Corp.
7046 564 322 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1117 303 Telstra Pty Ltd
4355 407 293 EarthLink, Inc.
6347 369 290 SAVVIS Communications Corpora
1239 962 288 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 447 251 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 492 239 Virginia Polytechnic Institut
1 667 235 GENUITY
6198 433 234 BellSouth Network Solutions,
22291 241 223 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
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
192.12.31.0/24 592 U.S. Naval Academy
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 /15:445 /16:7335 /17:1577 /18:2865
/19:8098 /20:7999 /21:5714 /22:8688 /23:10439 /24:66611
/25:169 /26:177 /27:97 /28:83 /29:58 /30:102
/31:2 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 794 1216 Supernet, Inc.
7018 521 1422 AT&T
702 492 796 UUNET - Commercial IP service
18566 463 468 Covad Communications
690 447 498 Merit Network
701 425 1599 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
1239 359 962 Sprint
6197 352 476 BellSouth Network Solutions,
7843 343 573 Adelphia Corp.
6198 341 433 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 273 285 ImpSat
7046 264 564 UUNET Technologies, Inc.
2386 239 437 AT&T Data Communications Serv
3215 237 311 France Telecom Transpac
20115 236 358 Charter Communications
4355 232 407 EarthLink, Inc.
7303 232 233 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:637 13:1 15:4 17:2 20:9 24:802
25:1 32:82 34:1 38:41 40:19 44:2
55:1 57:15 61:474 62:497 63:1902 64:1395
65:1858 66:1393 67:214 68:257 69:44 80:318
81:84 128:144 129:178 130:40 131:73 132:11
133:2 134:145 135:4 136:194 137:114 138:103
139:71 140:127 141:109 142:90 143:44 144:103
145:17 146:262 147:84 148:265 149:74 150:42
151:96 152:254 153:44 154:3 155:105 156:43
157:41 158:125 159:136 160:33 161:54 162:133
163:89 164:266 165:140 166:84 167:305 168:389
169:57 170:299 171:8 192:5348 193:2418 194:2006
195:944 196:458 198:3601 199:3216 200:2849 202:3649
203:5055 204:3005 205:2081 206:2413 207:2393 208:2693
209:2769 210:716 211:321 212:939 213:731 214:21
215:22 216:3192 217:580 218:76 219:14 220:48
End of report
