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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 13 Apr, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123902
Prefixes after maximum aggregation: 78095
Unique aggregates announced to Internet: 58819
Total ASes present in the Internet Routing Table: 14983
Origin-only ASes present in the Internet Routing Table: 12986
Origin ASes announcing only one prefix: 5894
Transit ASes present in the Internet Routing Table: 1997
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1223451392
Equivalent to 72 /8s, 236 /16s and 99 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 58435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20652
Total APNIC prefixes after maximum aggregation: 12202
Prefixes being announced from the APNIC address blocks: 19135
Unique aggregates announced from the APNIC address blocks: 11862
APNIC Region origin ASes present in the Internet Routing Table: 1768
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: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 109826016
Equivalent to 6 /8s, 139 /16s and 207 /24s
Percentage of available APNIC address space announced: 59.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76582
Total ARIN prefixes after maximum aggregation: 47918
Prefixes being announced from the ARIN address blocks: 54868
Unique aggregates announced from the ARIN address blocks: 16297
ARIN Region origin ASes present in the Internet Routing Table: 8307
ARIN Region origin ASes announcing only one prefix: 2830
ARIN Region transit ASes present in the Internet Routing Table: 794
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190334208
Equivalent to 11 /8s, 88 /16s and 69 /24s
Percentage of available ARIN address space announced: 70.9
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, 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: 21376
Total RIPE prefixes after maximum aggregation: 15753
Prefixes being announced from the RIPE address blocks: 17892
Unique aggregates announced from the RIPE address blocks: 12008
RIPE Region origin ASes present in the Internet Routing Table: 4505
RIPE Region origin ASes announcing only one prefix: 2457
RIPE Region transit ASes present in the Internet Routing Table: 812
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 128999168
Equivalent to 7 /8s, 176 /16s and 95 /24s
Percentage of available RIPE address space announced: 76.9
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: 5288
Total LACNIC prefixes after maximum aggregation: 2222
Prefixes being announced from the LACNIC address blocks: 4678
Unique aggregates announced from the LACNIC address blocks: 2966
LACNIC Region origin ASes present in the Internet Routing Table: 332
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12434432
Equivalent to 0 /8s, 189 /16s and 188 /24s
Percentage of available LACNIC address space announced: 37.1
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 1101 1105 791 Telstra Pty Ltd
703 395 363 312 UUNET
2907 379 1974 358 SINET Japan
17557 379 28 143 Pakistan Telecom
2764 322 341 290 connect.com.au pty ltd
4814 270 79 15 China Telecom (Group)
7474 270 276 206 Optus Communications Pty Ltd
3786 245 775 212 DACOM Corporation
17676 239 3686 26 XTAGE CORPORATION
4134 235 1999 122 Data Communications Bureau
4755 234 133 74 Videsh Sanchar Nigam Ltd. Aut
9583 220 33 14 Satyam Infoway Ltd.,
4766 202 2077 152 Korea Internet Exchange for "
9443 180 58 79 Primus Telecommunications
9800 175 244 53 CHINA UNICOM
4739 129 57 118 Commerical Internet eXchange
4716 128 731 122 TTnet
9498 126 9 10 BHARTI BT INTERNET LTD.
9768 125 384 64 Korea Telecom
4713 123 1212 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1597 8895 1121 UUNET Technologies, Inc.
7018 1359 7172 940 AT&T
1239 968 3120 681 Sprint
3908 932 1571 474 Supernet, Inc.
7132 807 6313 186 Southwestern Bell Internet Se
1 769 2830 490 GENUITY
4151 714 691 58 USDA
189 705 341 290 Genuity
7843 646 401 163 Adelphia Corp.
4323 568 498 165 Time Warner Communications, I
852 549 1110 430 Telus Advanced Communications
18566 541 128 6 Covad Communications
209 535 2140 303 Qwest
3561 514 2343 336 Cable & Wireless USA
2386 508 482 269 AT&T Data Communications Serv
690 496 73 314 Merit Network
705 491 229 218 UUNET Technologies, Inc.
7066 484 204 255 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
6198 455 226 174 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 779 2203 646 UUNET - Commercial IP service
3215 312 851 175 France Telecom Transpac
3301 308 1173 298 TeliaNet Sweden
3320 264 2004 225 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 216 327 190 SWIPnet Swedish IP Network
5400 196 97 110 BT Ignite European Backbone
5515 196 779 168 Sonera Solution Autonomous Sy
719 195 307 125 LANLINK autonomous system
786 180 1874 180 The JANET IP Service
8220 169 298 159 COLT Internet - International
20858 163 17 3 This AS will be used to conne
8708 155 44 151 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
12302 126 18 33 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 112 755 63 TELECOM ITALIA
3246 109 383 106 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 294 99 105 ImpSat
7303 242 36 61 Telecom Argentina Stet-France
8151 217 334 119 UniNet S.A. de C.V.
11172 163 66 33 Servicios Alestra S.A de C.V
6503 152 207 106 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 106 3 34 Red Universitaria Nacional
6147 90 62 20 Telefonica Del Peru
11992 89 8 37 Integrated Systems
8065 76 6 15 Empresas Publicas de Medellin
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.
15311 72 28 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
11830 66 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 63 11 42 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 714 656 USDA
7132 807 621 Southwestern Bell Internet Se
18566 541 535 Covad Communications
7843 646 483 Adelphia Corp.
3908 932 458 Supernet, Inc.
7018 1359 419 AT&T
189 705 415 Genuity
4323 568 403 Time Warner Communications, I
1221 1101 310 Telstra Pty Ltd
1239 968 287 Sprint
6347 367 286 SAVVIS Communications Corpora
6198 455 281 BellSouth Network Solutions,
22927 295 281 TELEFONICA DE ARGENTINA
6197 476 280 BellSouth Network Solutions,
1 769 279 GENUITY
705 491 273 UUNET Technologies, Inc.
4355 373 272 EarthLink, Inc.
4814 270 255 China Telecom (Group)
27364 266 248 Armstrong Cable Services
2386 508 239 AT&T Data Communications Serv
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64666 PRIVATE 64.202.125.0/24 23352 Server Central Netwo
64666 PRIVATE 64.202.126.0/24 23352 Server Central Netwo
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
1877 UNALLOCATED 192.108.201.0/24 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
192.83.16.0/20 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 /9:3 /10:8 /11:13 /12:50
/13:93 /14:250 /15:464 /16:7376 /17:1641 /18:2950
/19:8299 /20:8213 /21:5915 /22:8844 /23:10633 /24:68611
/25:157 /26:193 /27:52 /28:26 /29:13 /30:42
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 626 705 Genuity
3908 591 932 Supernet, Inc.
18566 535 541 Covad Communications
702 485 779 UUNET - Commercial IP service
701 480 1597 UUNET Technologies, Inc.
7018 476 1359 AT&T
690 445 496 Merit Network
7843 393 646 Adelphia Corp.
7066 383 484 Virginia Polytechnic Institut
1239 369 968 Sprint
6198 359 455 BellSouth Network Solutions,
6197 355 476 BellSouth Network Solutions,
11305 318 341 Interland Incorporated
2386 304 508 AT&T Data Communications Serv
20115 299 426 Charter Communications
22927 294 295 TELEFONICA DE ARGENTINA
6140 281 294 ImpSat
1 272 769 GENUITY
27364 259 266 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:677 13:1 15:4 17:3 20:9
24:801 25:1 32:86 38:63 40:18 44:2
55:1 57:17 61:405 62:521 63:1884 64:1558
65:1923 66:2362 67:160 68:339 69:102 80:333
81:119 128:150 129:180 130:45 131:83 132:11
133:2 134:151 135:4 136:112 137:111 138:105
139:66 140:118 141:91 142:94 143:46 144:111
145:16 146:269 147:93 148:277 149:71 150:45
151:68 152:246 153:57 154:2 155:107 156:47
157:46 158:124 159:141 160:36 161:75 162:129
163:80 164:311 165:136 166:75 167:328 168:405
169:56 170:316 171:7 192:5346 193:2416 194:1987
195:995 196:463 198:3560 199:3398 200:2905 202:3677
203:5048 204:3066 205:2012 206:2413 207:2414 208:2651
209:2851 210:752 211:330 212:986 213:780 214:20
215:21 216:3296 217:638 218:85 219:13 220:55
End of report
