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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 29 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126385
Prefixes after maximum aggregation: 79137
Unique aggregates announced to Internet: 59948
Total ASes present in the Internet Routing Table: 15412
Origin-only ASes present in the Internet Routing Table: 13366
Origin ASes announcing only one prefix: 6051
Transit ASes present in the Internet Routing Table: 2046
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1252103392
Equivalent to 74 /8s, 161 /16s and 148 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55898
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21674
Total APNIC prefixes after maximum aggregation: 12625
Prefixes being announced from the APNIC address blocks: 20111
Unique aggregates announced from the APNIC address blocks: 12291
APNIC Region origin ASes present in the Internet Routing Table: 1832
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 298
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 115989792
Equivalent to 6 /8s, 233 /16s and 221 /24s
Percentage of available APNIC address space announced: 62.5
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: 77136
Total ARIN prefixes after maximum aggregation: 48133
Prefixes being announced from the ARIN address blocks: 55059
Unique aggregates announced from the ARIN address blocks: 16473
ARIN Region origin ASes present in the Internet Routing Table: 8487
ARIN Region origin ASes announcing only one prefix: 2893
ARIN Region transit ASes present in the Internet Routing Table: 817
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193686272
Equivalent to 11 /8s, 139 /16s and 107 /24s
Percentage of available ARIN address space announced: 72.2
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: 22190
Total RIPE prefixes after maximum aggregation: 16099
Prefixes being announced from the RIPE address blocks: 18594
Unique aggregates announced from the RIPE address blocks: 12326
RIPE Region origin ASes present in the Internet Routing Table: 4679
RIPE Region origin ASes announcing only one prefix: 2545
RIPE Region transit ASes present in the Internet Routing Table: 834
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132603456
Equivalent to 7 /8s, 231 /16s and 94 /24s
Percentage of available RIPE address space announced: 71.9
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: 5384
Total LACNIC prefixes after maximum aggregation: 2280
Prefixes being announced from the LACNIC address blocks: 4816
Unique aggregates announced from the LACNIC address blocks: 3040
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 89
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12810240
Equivalent to 0 /8s, 195 /16s and 120 /24s
Percentage of available LACNIC address space announced: 38.2
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 1057 1069 746 Telstra Pty Ltd
4755 402 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 343 24 151 Pakistan Telecom
703 337 371 269 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 268 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 232 37 21 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 220 2475 165 Korea Internet Exchange for "
9800 188 305 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 166 11 26 BHARTI BT INTERNET LTD.
9929 153 169 34 China Netcom Corp.
4739 138 58 127 Commerical Internet eXchange
9238 137 8 19 TATA ISP
4716 132 745 126 TTnet
7539 128 139 102 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1526 8831 1075 UUNET Technologies, Inc.
7018 1337 7182 924 AT&T
1239 955 3020 671 Sprint
3908 909 1535 478 Supernet, Inc.
7132 834 6575 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 632 358 206 Adelphia Corp.
4323 606 526 176 Time Warner Communications, I
1 604 2584 409 GENUITY
18566 604 160 8 Covad Communications
11305 549 170 72 Interland Incorporated
852 529 1124 418 Telus Advanced Communications
6197 521 350 216 BellSouth Network Solutions,
209 514 2110 302 Qwest
705 509 271 330 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 475 263 186 BellSouth Network Solutions,
20115 460 194 282 Charter Communications
690 447 64 293 Merit Network
2386 409 542 231 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1028 2172 632 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 267 2004 228 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 262 834 149 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 231 386 219 COLT Internet - International
1257 226 312 188 SWIPnet Swedish IP Network
5400 205 143 123 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 150 Romania Data Systems S.A.
3303 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 104 178 81 France Telecom
2647 98 4129 40 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 235 37 56 Telecom Argentina Stet-France
8151 212 334 114 UniNet S.A. de C.V.
11172 169 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 133 205 95 AVANTEL, S.A.
11340 119 3 40 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
6147 99 70 21 Telefonica Del Peru
11992 88 8 38 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
11830 68 5 28 Instituto Costarricense de El
4270 67 18 9 Red de Interconexion Universi
7927 66 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
15034 63 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 834 602 Southwestern Bell Internet Se
18566 604 596 Covad Communications
11305 549 477 Interland Incorporated
3908 909 431 Supernet, Inc.
4323 606 430 Time Warner Communications, I
7843 632 426 Adelphia Corp.
7018 1337 413 AT&T
702 1028 396 UUNET - Commercial IP service
189 687 388 Genuity
4755 402 342 Videsh Sanchar Nigam Ltd. Aut
1221 1057 311 Telstra Pty Ltd
6197 521 305 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
4355 406 297 EarthLink, Inc.
6198 475 289 BellSouth Network Solutions,
1239 955 284 Sprint
6347 362 281 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
376 383 254 Reseau Interordinateurs Scien
25844 255 247 Skadden, Arps, Slate, Meagher
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
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.208.0.0/14 1668 GNN Hosting Service
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
192.149.62.0/23 29839 RegistryPro, Inc.
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:7 /10:8 /11:13 /12:53
/13:98 /14:257 /15:467 /16:7423 /17:1723 /18:3032
/19:8512 /20:8505 /21:6227 /22:9172 /23:10742 /24:69537
/25:157 /26:254 /27:67 /28:41 /29:22 /30:21
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 721 1028 UUNET - Commercial IP service
189 607 687 Genuity
18566 598 604 Covad Communications
3908 573 909 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 467 1337 AT&T
701 431 1526 UUNET Technologies, Inc.
690 405 447 Merit Network
7843 396 632 Adelphia Corp.
6197 393 521 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 368 475 BellSouth Network Solutions,
1239 359 955 Sprint
20115 320 460 Charter Communications
27364 313 319 Armstrong Cable Services
25844 255 255 Skadden, Arps, Slate, Meagher
1 223 604 GENUITY
4355 216 406 EarthLink, Inc.
3320 208 267 Deutsche Telekom AG
705 207 509 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:702 13:1 15:4 16:1 17:3
20:7 24:875 25:1 32:95 38:43 40:21
44:2 57:17 61:261 62:368 63:1870 64:1752
65:1958 66:2548 67:188 68:384 69:151 80:385
81:127 82:2 128:141 129:171 130:47 131:79
132:26 134:175 135:4 136:116 137:107 138:110
139:65 140:167 141:123 142:94 143:44 144:106
145:13 146:276 147:96 148:289 149:62 150:76
151:69 152:232 153:101 154:7 155:116 156:57
157:45 158:128 159:140 160:45 161:75 162:379
163:81 164:314 165:141 166:95 167:319 168:174
169:83 170:317 171:8 192:5331 193:2591 194:1968
195:1082 196:473 198:3589 199:2688 200:2951 202:3879
203:5244 204:2980 205:2049 206:2328 207:2429 208:2603
209:2887 210:845 211:356 212:982 213:845 214:19
215:23 216:3428 217:643 218:92 219:52 220:96
221:3
End of report
