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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 07 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118391
Prefixes after maximum aggregation: 75552
Unique aggregates announced to Internet: 56519
Total ASes present in the Internet Routing Table: 14175
Origin-only ASes present in the Internet Routing Table: 12289
Origin ASes announcing only one prefix: 5554
Transit ASes present in the Internet Routing Table: 1886
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1185890733
Equivalent to 70 /8s, 175 /16s and 65 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54261
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19293
Total APNIC prefixes after maximum aggregation: 11472
Prefixes being announced from the APNIC address blocks: 17853
Unique aggregates announced from the APNIC address blocks: 11158
APNIC Region origin ASes present in the Internet Routing Table: 1655
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 290
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 101150880
Equivalent to 6 /8s, 7 /16s and 112 /24s
Percentage of available APNIC address space announced: 66.5
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: 73932
Total ARIN prefixes after maximum aggregation: 46860
Prefixes being announced from the ARIN address blocks: 51488
Unique aggregates announced from the ARIN address blocks: 15717
ARIN Region origin ASes present in the Internet Routing Table: 7955
ARIN Region origin ASes announcing only one prefix: 2682
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 183952368
Equivalent to 10 /8s, 246 /16s and 227 /24s
Percentage of available ARIN address space announced: 68.5
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: 20220
Total RIPE prefixes after maximum aggregation: 15112
Prefixes being announced from the RIPE address blocks: 16848
Unique aggregates announced from the RIPE address blocks: 11230
RIPE Region origin ASes present in the Internet Routing Table: 4185
RIPE Region origin ASes announcing only one prefix: 2268
RIPE Region transit ASes present in the Internet Routing Table: 758
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121111296
Equivalent to 7 /8s, 56 /16s and 3 /24s
Percentage of available RIPE address space announced: 80.2
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
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4944
Total LACNIC prefixes after maximum aggregation: 2108
Prefixes being announced from the LACNIC address blocks: 4311
Unique aggregates announced from the LACNIC address blocks: 2784
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11758336
Equivalent to 0 /8s, 179 /16s and 107 /24s
Percentage of available LACNIC address space announced: 70.1
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 1153 1168 839 Telstra Pty Ltd
703 394 364 310 UUNET
2907 357 1768 335 SINET Japan
2764 343 341 312 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 306 280 205 Optus Communications Pty Ltd
4134 299 2377 100 Data Communications Bureau
4755 265 135 65 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 232 3602 27 XTAGE CORPORATION
4766 228 1807 151 Korea Internet Exchange for "
9583 186 33 12 Satyam Infoway Ltd.,
9443 184 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
9800 131 191 31 CHINA UNICOM
4716 129 723 123 TTnet
7657 124 26 89 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
3786 111 681 92 DACOM Corporation
4515 111 102 46 Star Internet Services Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1744 9041 1245 UUNET Technologies, Inc.
3908 1723 1651 504 Supernet, Inc.
7018 1393 7132 980 AT&T
1239 923 3157 659 Sprint
1 664 8088 434 GENUITY
852 648 1145 463 Telus Advanced Communications
7843 645 395 283 Adelphia Corp.
7046 585 860 283 UUNET Technologies, Inc.
209 525 2048 337 Qwest
4323 523 455 166 Time Warner Communications, I
690 502 74 318 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 444 262 192 BellSouth Network Solutions,
705 435 134 195 UUNET Technologies, Inc.
6198 415 178 198 BellSouth Network Solutions,
3561 406 2230 349 Cable & Wireless USA
4355 404 313 118 EarthLink, Inc.
3549 402 741 294 Global Crossing
18566 395 96 5 Covad Communications
15290 389 213 173 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 810 2327 674 UUNET - Commercial IP service
3301 378 1163 333 TeliaNet Sweden
3215 309 804 169 France Telecom Transpac
3320 245 1962 223 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 191 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 161 68 97 BT Ignite European Backbone
8708 148 42 141 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3269 111 752 63 TELECOM ITALIA
3233 103 10 15 RNC - Romanian Natioanal R&D
5511 103 193 83 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 107 67 ImpSat USA, Inc.
8151 207 332 112 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 166 86 33 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 81 59 21 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 74 425 41 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 30 Integrated Systems
7984 65 12 41 Global One Colombia
4926 63 4 51 Telintar S.A.
15034 58 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1723 1219 Supernet, Inc.
7018 1393 413 AT&T
18566 395 390 Covad Communications
7843 645 362 Adelphia Corp.
4323 523 357 Time Warner Communications, I
1221 1153 314 Telstra Pty Ltd
7046 585 302 UUNET Technologies, Inc.
1580 316 302 ANOSCEUR
4355 404 286 EarthLink, Inc.
6347 352 275 SAVVIS Communications Corpora
11492 273 272 Cable One
22927 289 267 TELEFONICA DE ARGENTINA
1239 923 264 Sprint
4151 320 262 USDA
6197 444 252 BellSouth Network Solutions,
705 435 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 664 230 GENUITY
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
64000 RESERVED 200.63.214.0/24 14522 SatNet S.A.
63000 RESERVED 200.63.217.0/24 14522 SatNet S.A.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
160.213.122.0/23 25440 Nestle European Data Center
160.213.248.0/21 25440 Nestle European Data Center
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
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 /11:11 /12:46
/13:91 /14:238 /15:439 /16:7313 /17:1535 /18:2768
/19:7966 /20:7640 /21:5480 /22:8319 /23:9947 /24:65668
/25:143 /26:177 /27:90 /28:96 /29:68 /30:241
/31:19 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 918 1723 Supernet, Inc.
701 512 1744 UUNET Technologies, Inc.
702 494 810 UUNET - Commercial IP service
7018 456 1393 AT&T
690 451 502 Merit Network
7843 436 645 Adelphia Corp.
7066 388 491 Virginia Polytechnic Institut
18566 388 395 Covad Communications
6197 334 444 BellSouth Network Solutions,
6198 333 415 BellSouth Network Solutions,
1239 316 923 Sprint
1580 301 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
7046 278 585 UUNET Technologies, Inc.
6140 271 284 ImpSat USA, Inc.
11492 270 273 Cable One
3215 236 309 France Telecom Transpac
11537 226 232 University Corporation for Ad
3301 225 378 TeliaNet Sweden
4355 224 404 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:608 13:10 15:6 17:3 20:5
24:842 25:1 32:46 38:29 40:15 44:1
55:1 57:15 61:399 62:411 63:1904 64:1313
65:1673 66:1234 67:187 68:177 69:31 80:322
81:82 128:117 129:168 130:19 131:67 132:9
133:2 134:145 135:6 136:498 137:110 138:212
139:55 140:150 141:100 142:92 143:46 144:145
145:18 146:254 147:247 148:275 149:76 150:43
151:90 152:289 153:36 154:7 155:99 156:106
157:58 158:115 159:159 160:21 161:70 162:141
163:89 164:257 165:127 166:94 167:295 168:382
169:56 170:278 171:8 192:5410 193:2391 194:2013
195:876 196:454 198:3600 199:3052 200:2645 202:3573
203:4859 204:3312 205:2201 206:2362 207:2509 208:2584
209:2656 210:623 211:278 212:875 213:755 214:12
215:21 216:3043 217:536 218:66 219:14 220:1
End of report
