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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126077
Prefixes after maximum aggregation: 78980
Unique aggregates announced to Internet: 59480
Total ASes present in the Internet Routing Table: 15350
Origin-only ASes present in the Internet Routing Table: 13304
Origin ASes announcing only one prefix: 6010
Transit ASes present in the Internet Routing Table: 2046
Transit-only ASes present in the Internet Routing Table: 74
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: 17
Number of addresses announced to Internet: 1252127584
Equivalent to 74 /8s, 161 /16s and 243 /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: 55546
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21537
Total APNIC prefixes after maximum aggregation: 12568
Prefixes being announced from the APNIC address blocks: 19951
Unique aggregates announced from the APNIC address blocks: 12222
APNIC Region origin ASes present in the Internet Routing Table: 1824
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 300
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 115875488
Equivalent to 6 /8s, 232 /16s and 30 /24s
Percentage of available APNIC address space announced: 62.4
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: 77515
Total ARIN prefixes after maximum aggregation: 48172
Prefixes being announced from the ARIN address blocks: 55523
Unique aggregates announced from the ARIN address blocks: 16504
ARIN Region origin ASes present in the Internet Routing Table: 8472
ARIN Region origin ASes announcing only one prefix: 2883
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: 192980992
Equivalent to 11 /8s, 128 /16s and 168 /24s
Percentage of available ARIN address space announced: 71.9
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: 21618
Total RIPE prefixes after maximum aggregation: 15983
Prefixes being announced from the RIPE address blocks: 18123
Unique aggregates announced from the RIPE address blocks: 12189
RIPE Region origin ASes present in the Internet Routing Table: 4643
RIPE Region origin ASes announcing only one prefix: 2517
RIPE Region transit ASes present in the Internet Routing Table: 827
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132196672
Equivalent to 7 /8s, 225 /16s and 41 /24s
Percentage of available RIPE address space announced: 71.6
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: 5406
Total LACNIC prefixes after maximum aggregation: 2257
Prefixes being announced from the LACNIC address blocks: 4836
Unique aggregates announced from the LACNIC address blocks: 2996
LACNIC Region origin ASes present in the Internet Routing Table: 336
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: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12779776
Equivalent to 0 /8s, 195 /16s and 1 /24s
Percentage of available LACNIC address space announced: 38.1
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 1067 1071 760 Telstra Pty Ltd
4755 418 133 67 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 345 24 147 Pakistan Telecom
703 335 371 268 UUNET
2764 307 325 274 connect.com.au pty ltd
7474 274 306 205 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 244 773 211 DACOM Corporation
4134 240 2066 119 Data Communications Bureau
9583 232 37 21 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9800 185 300 60 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 170 12 28 BHARTI BT INTERNET LTD.
4739 139 58 127 Commerical Internet eXchange
9238 135 8 18 TATA ISP
4716 128 745 122 TTnet
7539 128 155 102 TANet2, sponsored by NSC, TAI
9768 126 384 60 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1543 8865 1088 UUNET Technologies, Inc.
7018 1335 7179 921 AT&T
7132 1001 6572 228 Southwestern Bell Internet Se
1239 951 3019 669 Sprint
3908 911 1547 476 Supernet, Inc.
189 683 340 296 Genuity
11305 647 170 72 Interland Incorporated
1 615 2603 417 GENUITY
7843 613 360 169 Adelphia Corp.
4323 604 525 175 Time Warner Communications, I
18566 599 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
6197 502 348 197 BellSouth Network Solutions,
209 494 2108 302 Qwest
7066 487 204 260 Virginia Polytechnic Institut
6198 468 230 179 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 451 65 294 Merit Network
2386 403 538 234 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 750 2174 637 UUNET - Commercial IP service
3301 303 1171 290 TeliaNet Sweden
3215 283 864 158 France Telecom Transpac
3320 265 2004 227 Deutsche Telekom AG
719 264 307 125 LANLINK autonomous system
680 232 2053 229 DFN-IP service G-WiN
8220 224 384 212 COLT Internet - International
1257 223 315 185 SWIPnet Swedish IP Network
5400 203 142 122 BT Ignite European Backbone
5515 180 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
2647 97 4129 39 SITA
5511 96 177 77 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 297 98 107 ImpSat
7303 237 37 61 Telecom Argentina Stet-France
8151 215 350 117 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 130 189 93 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 87 8 36 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
4270 68 18 9 Red de Interconexion Universi
11830 67 5 27 Instituto Costarricense de El
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
15034 62 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1001 773 Southwestern Bell Internet Se
18566 599 591 Covad Communications
11305 647 575 Interland Incorporated
7843 613 444 Adelphia Corp.
3908 911 435 Supernet, Inc.
4323 604 429 Time Warner Communications, I
7018 1335 414 AT&T
189 683 387 Genuity
4755 418 351 Videsh Sanchar Nigam Ltd. Aut
27364 326 308 Armstrong Cable Services
1221 1067 307 Telstra Pty Ltd
6197 502 305 BellSouth Network Solutions,
4355 398 294 EarthLink, Inc.
6198 468 289 BellSouth Network Solutions,
6347 368 288 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 951 282 Sprint
376 382 266 Reseau Interordinateurs Scien
22909 276 264 Comcast Cable Corporation
17676 250 231 XTAGE CORPORATION
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
192.153.136.0/21 568 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 /9:5 /10:8 /11:13 /12:53
/13:99 /14:256 /15:469 /16:7430 /17:1700 /18:3004
/19:8478 /20:8581 /21:6151 /22:9070 /23:10642 /24:69518
/25:158 /26:248 /27:56 /28:42 /29:26 /30:22
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 606 683 Genuity
18566 593 599 Covad Communications
11305 573 647 Interland Incorporated
3908 571 911 Supernet, Inc.
7018 467 1335 AT&T
702 458 750 UUNET - Commercial IP service
701 432 1543 UUNET Technologies, Inc.
690 409 451 Merit Network
7066 384 487 Virginia Polytechnic Institut
6197 374 502 BellSouth Network Solutions,
7843 373 613 Adelphia Corp.
6198 364 468 BellSouth Network Solutions,
1239 356 951 Sprint
20115 323 462 Charter Communications
27364 320 326 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
19262 228 269 Verizon Global Networks
1 224 615 GENUITY
4355 217 398 EarthLink, Inc.
3215 212 283 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 13:1 15:6 16:1 17:3
20:7 24:863 25:1 32:95 38:40 40:21
44:2 57:17 61:266 62:348 63:1870 64:1948
65:1972 66:2584 67:178 68:375 69:195 80:362
81:126 128:140 129:175 130:47 131:81 132:26
134:174 135:4 136:116 137:107 138:110 139:64
140:167 141:123 142:94 143:41 144:107 145:16
146:273 147:97 148:287 149:61 150:44 151:70
152:232 153:60 154:7 155:116 156:53 157:45
158:127 159:140 160:43 161:75 162:131 163:77
164:315 165:142 166:94 167:319 168:408 169:62
170:313 171:8 192:5325 193:2443 194:1956 195:1043
196:476 198:3598 199:2717 200:3011 202:3819 203:5242
204:3003 205:2046 206:2336 207:2432 208:2598 209:2904
210:820 211:352 212:961 213:815 214:19 215:23
216:3544 217:625 218:91 219:44 220:95 221:3
End of report
