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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 07 Apr, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123364
Prefixes after maximum aggregation: 78222
Unique aggregates announced to Internet: 58922
Total ASes present in the Internet Routing Table: 14933
Origin-only ASes present in the Internet Routing Table: 12952
Origin ASes announcing only one prefix: 5860
Transit ASes present in the Internet Routing Table: 1981
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 22
Number of addresses announced to Internet: 1222528736
Equivalent to 72 /8s, 222 /16s and 78 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 58227
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20449
Total APNIC prefixes after maximum aggregation: 12159
Prefixes being announced from the APNIC address blocks: 18922
Unique aggregates announced from the APNIC address blocks: 11717
APNIC Region origin ASes present in the Internet Routing Table: 1759
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 284
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 109109248
Equivalent to 6 /8s, 128 /16s and 224 /24s
Percentage of available APNIC address space announced: 64.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76374
Total ARIN prefixes after maximum aggregation: 48144
Prefixes being announced from the ARIN address blocks: 54642
Unique aggregates announced from the ARIN address blocks: 16664
ARIN Region origin ASes present in the Internet Routing Table: 8289
ARIN Region origin ASes announcing only one prefix: 2808
ARIN Region transit ASes present in the Internet Routing Table: 793
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190170816
Equivalent to 11 /8s, 85 /16s and 198 /24s
Percentage of available ARIN address space announced: 70.8
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, 29695 - 30719
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: 21262
Total RIPE prefixes after maximum aggregation: 15705
Prefixes being announced from the RIPE address blocks: 17772
Unique aggregates announced from the RIPE address blocks: 11917
RIPE Region origin ASes present in the Internet Routing Table: 4485
RIPE Region origin ASes announcing only one prefix: 2450
RIPE Region transit ASes present in the Internet Routing Table: 806
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 128709376
Equivalent to 7 /8s, 171 /16s and 243 /24s
Percentage of available RIPE address space announced: 76.7
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: 5276
Total LACNIC prefixes after maximum aggregation: 2214
Prefixes being announced from the LACNIC address blocks: 4663
Unique aggregates announced from the LACNIC address blocks: 2953
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12419328
Equivalent to 0 /8s, 189 /16s and 129 /24s
Percentage of available LACNIC address space announced: 37.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1096 1105 799 Telstra Pty Ltd
703 397 367 313 UUNET
2907 379 1974 358 SINET Japan
17557 377 28 142 Pakistan Telecom
2764 318 340 286 connect.com.au pty ltd
7474 271 276 207 Optus Communications Pty Ltd
4814 269 79 15 China Telecom (Group)
3786 245 775 212 DACOM Corporation
4134 243 2115 128 Data Communications Bureau
17676 237 3654 25 XTAGE CORPORATION
4755 228 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 219 33 14 Satyam Infoway Ltd.,
4766 211 2078 158 Korea Internet Exchange for "
9443 179 58 78 Primus Telecommunications
9800 174 226 48 CHINA UNICOM
9238 131 8 17 TATA ISP
4716 128 731 122 TTnet
4739 128 57 117 Commerical Internet eXchange
9498 127 9 10 BHARTI BT INTERNET LTD.
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1581 8873 1117 UUNET Technologies, Inc.
7018 1353 7169 937 AT&T
3908 986 1572 476 Supernet, Inc.
1239 969 3117 683 Sprint
1 782 2846 492 GENUITY
7132 727 6084 408 Southwestern Bell Internet Se
189 706 341 291 Genuity
7843 627 401 161 Adelphia Corp.
4151 602 690 59 USDA
3561 588 2353 339 Cable & Wireless USA
4323 564 498 164 Time Warner Communications, I
852 548 1107 433 Telus Advanced Communications
18566 536 125 9 Covad Communications
209 531 2095 339 Qwest
2386 503 481 273 AT&T Data Communications Serv
690 502 73 318 Merit Network
7066 485 204 255 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
705 458 188 202 UUNET Technologies, Inc.
6198 458 226 178 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 780 2205 647 UUNET - Commercial IP service
3215 315 851 175 France Telecom Transpac
3301 310 1174 300 TeliaNet Sweden
3320 267 1996 230 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 216 328 190 SWIPnet Swedish IP Network
719 195 307 125 LANLINK autonomous system
5400 195 93 109 BT Ignite European Backbone
5515 195 779 168 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
8220 161 281 151 COLT Internet - International
20858 158 17 3 This AS will be used to conne
8708 153 44 150 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 113 755 63 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 295 99 106 ImpSat
7303 242 36 61 Telecom Argentina Stet-France
8151 215 333 117 UniNet S.A. de C.V.
11172 164 66 33 Servicios Alestra S.A de C.V
6503 155 207 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
11992 90 9 36 Integrated Systems
6147 78 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
6535 74 5 19 Chilesat Servicios Empresari
13999 74 36 8 Mega Cable S.A. de C.V.
8065 73 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7927 65 5 40 Global One Venezuela
11830 65 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 602 543 USDA
18566 536 527 Covad Communications
3908 986 510 Supernet, Inc.
7843 627 466 Adelphia Corp.
7018 1353 416 AT&T
189 706 415 Genuity
4323 564 400 Time Warner Communications, I
7132 727 319 Southwestern Bell Internet Se
1221 1096 297 Telstra Pty Ltd
1 782 290 GENUITY
6347 371 288 SAVVIS Communications Corpora
1239 969 286 Sprint
6197 476 280 BellSouth Network Solutions,
6198 458 280 BellSouth Network Solutions,
4355 379 277 EarthLink, Inc.
22927 286 272 TELEFONICA DE ARGENTINA
705 458 256 UUNET Technologies, Inc.
4814 269 254 China Telecom (Group)
3561 588 249 Cable & Wireless USA
27364 266 248 Armstrong Cable Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64500 RESERVED 192.83.252.0/24 297 NASA Science Network
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated 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
192.16.52.0/24 1239 Sprint
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.75.199.0/24 25745 Alentus Corporation
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM,
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 /9:5 /10:8 /11:13 /12:47
/13:92 /14:249 /15:463 /16:7376 /17:1644 /18:2956
/19:8263 /20:8199 /21:5900 /22:8812 /23:10605 /24:68138
/25:172 /26:192 /27:52 /28:34 /29:20 /30:60
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 622 986 Supernet, Inc.
18566 531 536 Covad Communications
702 484 780 UUNET - Commercial IP service
701 469 1581 UUNET Technologies, Inc.
7018 468 1353 AT&T
690 451 502 Merit Network
7066 384 485 Virginia Polytechnic Institut
7843 377 627 Adelphia Corp.
1239 371 969 Sprint
6198 362 458 BellSouth Network Solutions,
6197 355 476 BellSouth Network Solutions,
11305 318 341 Interland Incorporated
2386 299 503 AT&T Data Communications Serv
20115 299 426 Charter Communications
1 285 782 GENUITY
22927 285 286 TELEFONICA DE ARGENTINA
6140 282 295 ImpSat
27364 259 266 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:672 13:1 15:4 17:2 20:9
24:790 25:1 32:72 38:64 40:18 44:2
55:1 57:17 61:409 62:496 63:1892 64:1538
65:1909 66:2335 67:177 68:323 69:77 80:328
81:119 128:150 129:176 130:45 131:83 132:11
133:11 134:146 135:4 136:113 137:111 138:105
139:66 140:149 141:88 142:94 143:47 144:110
145:16 146:268 147:90 148:278 149:72 150:42
151:66 152:248 153:53 154:2 155:107 156:46
157:44 158:125 159:141 160:34 161:60 162:127
163:76 164:308 165:135 166:72 167:325 168:397
169:56 170:316 171:7 192:5343 193:2394 194:1991
195:997 196:477 198:3559 199:3280 200:2890 202:3551
203:5038 204:3067 205:2013 206:2421 207:2403 208:2668
209:2879 210:739 211:338 212:957 213:761 214:19
215:21 216:3286 217:617 218:83 219:11 220:57
End of report
