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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 24 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122988
Prefixes after maximum aggregation: 78216
Unique aggregates announced to Internet: 59144
Total ASes present in the Internet Routing Table: 14857
Origin-only ASes present in the Internet Routing Table: 12890
Origin ASes announcing only one prefix: 5828
Transit ASes present in the Internet Routing Table: 1967
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.4
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: 20
Number of addresses announced to Internet: 1217755941
Equivalent to 72 /8s, 149 /16s and 123 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57703
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20634
Total APNIC prefixes after maximum aggregation: 12171
Prefixes being announced from the APNIC address blocks: 19115
Unique aggregates announced from the APNIC address blocks: 11786
APNIC Region origin ASes present in the Internet Routing Table: 1748
APNIC Region origin ASes announcing only one prefix: 513
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107732160
Equivalent to 6 /8s, 107 /16s and 220 /24s
Percentage of available APNIC address space announced: 57.1
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: 75790
Total ARIN prefixes after maximum aggregation: 48218
Prefixes being announced from the ARIN address blocks: 53942
Unique aggregates announced from the ARIN address blocks: 16858
ARIN Region origin ASes present in the Internet Routing Table: 8257
ARIN Region origin ASes announcing only one prefix: 2794
ARIN Region transit ASes present in the Internet Routing Table: 793
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187938112
Equivalent to 11 /8s, 51 /16s and 181 /24s
Percentage of available ARIN address space announced: 70.0
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: 21300
Total RIPE prefixes after maximum aggregation: 15616
Prefixes being announced from the RIPE address blocks: 17838
Unique aggregates announced from the RIPE address blocks: 11877
RIPE Region origin ASes present in the Internet Routing Table: 4456
RIPE Region origin ASes announcing only one prefix: 2435
RIPE Region transit ASes present in the Internet Routing Table: 805
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 128313088
Equivalent to 7 /8s, 165 /16s and 231 /24s
Percentage of available RIPE address space announced: 76.5
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: 5253
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 4646
Unique aggregates announced from the LACNIC address blocks: 2931
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12397312
Equivalent to 0 /8s, 189 /16s and 43 /24s
Percentage of available LACNIC address space announced: 73.9
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 1104 1106 807 Telstra Pty Ltd
703 406 370 314 UUNET
2907 391 1992 368 SINET Japan
17557 378 28 140 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 310 2668 102 Data Communications Bureau
7474 306 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 250 772 212 DACOM Corporation
17676 235 3614 26 XTAGE CORPORATION
4755 229 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 218 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 178 57 77 Primus Telecommunications
9800 167 205 42 CHINA UNICOM
9238 134 8 17 TATA ISP
4716 128 717 122 TTnet
4739 127 57 116 Commerical Internet eXchange
9498 125 9 9 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 1577 8828 1122 UUNET Technologies, Inc.
7018 1359 7143 945 AT&T
3908 1249 1588 481 Supernet, Inc.
1239 979 3152 695 Sprint
1 711 8071 427 GENUITY
7843 606 379 228 Adelphia Corp.
3561 591 2352 344 Cable & Wireless USA
852 554 1107 436 Telus Advanced Communications
4323 554 490 172 Time Warner Communications, I
4151 547 691 61 USDA
18566 541 122 11 Covad Communications
209 533 2091 341 Qwest
690 504 74 314 Merit Network
2386 499 481 247 AT&T Data Communications Serv
7066 490 204 254 Virginia Polytechnic Institut
6197 475 338 196 BellSouth Network Solutions,
705 458 186 204 UUNET Technologies, Inc.
6198 447 221 174 BellSouth Network Solutions,
3549 409 695 312 Global Crossing
20115 408 168 265 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 783 2236 648 UUNET - Commercial IP service
3301 312 1174 302 TeliaNet Sweden
3215 310 835 174 France Telecom Transpac
3320 267 1996 230 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
5400 219 77 105 BT Ignite European Backbone
1257 217 344 191 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 151 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 136 215 127 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 112 753 62 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 106 10 19 RNC - Romanian Natioanal R&D
3352 103 702 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 106 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 217 349 116 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 75 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 71 4 22 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 61 4 24 Instituto Costarricense de El
13999 60 36 8 Mega Cable S.A. de C.V.
7738 59 170 11 Telecomunicacoes da Bahia S.A
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1249 768 Supernet, Inc.
18566 541 530 Covad Communications
4151 547 486 USDA
7018 1359 414 AT&T
4323 554 382 Time Warner Communications, I
7843 606 378 Adelphia Corp.
1221 1104 297 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 979 284 Sprint
1 711 284 GENUITY
6197 475 279 BellSouth Network Solutions,
6198 447 273 BellSouth Network Solutions,
4355 385 273 EarthLink, Inc.
22927 286 272 TELEFONICA DE ARGENTINA
27364 278 260 Armstrong Cable Services
705 458 254 UUNET Technologies, Inc.
2386 499 252 AT&T Data Communications Serv
4814 264 249 China Telecom (Group)
3561 591 247 Cable & Wireless USA
17557 378 238 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
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
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
160.225.160.0/19 5676 Pacific Bell Internet Service
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
192.156.164.0/24 19548 Adelphia Business Solutions
192.158.249.0/24 27319 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 /12:46
/13:89 /14:241 /15:449 /16:7343 /17:1633 /18:2918
/19:8237 /20:8214 /21:5852 /22:8838 /23:10614 /24:67595
/25:195 /26:198 /27:126 /28:118 /29:77 /30:91
/31:4 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 817 1249 Supernet, Inc.
18566 536 541 Covad Communications
702 486 783 UUNET - Commercial IP service
7018 467 1359 AT&T
701 456 1577 UUNET Technologies, Inc.
690 453 504 Merit Network
7066 389 490 Virginia Polytechnic Institut
7843 379 606 Adelphia Corp.
1239 372 979 Sprint
6198 355 447 BellSouth Network Solutions,
6197 354 475 BellSouth Network Solutions,
2386 299 499 AT&T Data Communications Serv
22927 285 286 TELEFONICA DE ARGENTINA
20115 283 408 Charter Communications
6140 278 291 ImpSat
27364 272 278 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 234 310 France Telecom Transpac
209 226 533 Qwest
4355 213 385 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:665 13:1 15:4 17:2 20:10
24:792 25:1 32:93 34:1 38:61 40:18
44:2 55:1 57:15 61:453 62:506 63:1925
64:1473 65:1928 66:1588 67:222 68:324 69:66
80:333 81:103 128:150 129:225 130:45 131:83
132:11 133:11 134:146 135:4 136:113 137:116
138:106 139:67 140:147 141:99 142:97 143:46
144:100 145:18 146:266 147:90 148:272 149:74
150:42 151:87 152:249 153:51 154:2 155:107
156:46 157:44 158:123 159:139 160:33 161:61
162:126 163:88 164:299 165:145 166:74 167:321
168:400 169:55 170:315 171:6 192:5300 193:2396
194:1994 195:975 196:479 198:3627 199:3241 200:2884
202:3660 203:5044 204:3071 205:2029 206:2420 207:2438
208:2684 209:2811 210:740 211:326 212:975 213:775
214:21 215:22 216:3248 217:603 218:82 219:9
220:54
End of report
