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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125980
Prefixes after maximum aggregation: 79092
Unique aggregates announced to Internet: 59713
Total ASes present in the Internet Routing Table: 15394
Origin-only ASes present in the Internet Routing Table: 13341
Origin ASes announcing only one prefix: 6056
Transit ASes present in the Internet Routing Table: 2053
Transit-only ASes present in the Internet Routing Table: 71
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1251941056
Equivalent to 74 /8s, 159 /16s and 26 /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: 55482
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21585
Total APNIC prefixes after maximum aggregation: 12603
Prefixes being announced from the APNIC address blocks: 20019
Unique aggregates announced from the APNIC address blocks: 12268
APNIC Region origin ASes present in the Internet Routing Table: 1820
APNIC Region origin ASes announcing only one prefix: 520
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: 115940608
Equivalent to 6 /8s, 233 /16s and 29 /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: 77153
Total ARIN prefixes after maximum aggregation: 48160
Prefixes being announced from the ARIN address blocks: 55293
Unique aggregates announced from the ARIN address blocks: 16484
ARIN Region origin ASes present in the Internet Routing Table: 8496
ARIN Region origin ASes announcing only one prefix: 2907
ARIN Region transit ASes present in the Internet Routing Table: 818
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193443328
Equivalent to 11 /8s, 135 /16s and 182 /24s
Percentage of available ARIN address space announced: 72.1
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: 21858
Total RIPE prefixes after maximum aggregation: 16068
Prefixes being announced from the RIPE address blocks: 18363
Unique aggregates announced from the RIPE address blocks: 12323
RIPE Region origin ASes present in the Internet Routing Table: 4670
RIPE Region origin ASes announcing only one prefix: 2541
RIPE Region transit ASes present in the Internet Routing Table: 838
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132517184
Equivalent to 7 /8s, 230 /16s and 13 /24s
Percentage of available RIPE address space announced: 71.8
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: 5381
Total LACNIC prefixes after maximum aggregation: 2261
Prefixes being announced from the LACNIC address blocks: 4805
Unique aggregates announced from the LACNIC address blocks: 3021
LACNIC Region origin ASes present in the Internet Routing Table: 337
LACNIC Region origin ASes announcing only one prefix: 88
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: 12797184
Equivalent to 0 /8s, 195 /16s and 69 /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 1048 1069 746 Telstra Pty Ltd
4755 402 132 61 Videsh Sanchar Nigam Ltd. Aut
2907 373 1895 349 SINET Japan
17557 344 24 152 Pakistan Telecom
703 337 371 269 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 270 307 203 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 230 37 19 Satyam Infoway Ltd.,
4134 226 1915 112 Data Communications Bureau
4766 219 2475 165 Korea Internet Exchange for "
9800 188 305 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 164 11 24 BHARTI BT INTERNET LTD.
9929 153 169 34 China Netcom Corp.
4739 140 58 128 Commerical Internet eXchange
9238 136 8 19 TATA ISP
7539 129 139 103 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1536 8848 1081 UUNET Technologies, Inc.
7018 1337 7182 922 AT&T
1239 955 3021 674 Sprint
3908 906 1532 477 Supernet, Inc.
7132 860 6574 231 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 630 358 204 Adelphia Corp.
1 610 2586 412 GENUITY
18566 604 160 8 Covad Communications
4323 603 526 176 Time Warner Communications, I
11305 549 170 72 Interland Incorporated
852 528 1124 417 Telus Advanced Communications
6197 520 350 216 BellSouth Network Solutions,
705 509 271 330 UUNET Technologies, Inc.
209 497 2109 301 Qwest
7066 488 204 261 Virginia Polytechnic Institut
6198 474 263 185 BellSouth Network Solutions,
20115 459 194 281 Charter Communications
690 448 64 294 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
702 744 2170 629 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 267 2004 228 Deutsche Telekom AG
3215 264 834 149 France Telecom Transpac
719 258 306 123 LANLINK autonomous system
680 232 2053 229 DFN-IP service G-WiN
8220 228 385 216 COLT Internet - International
1257 227 312 189 SWIPnet Swedish IP Network
5400 204 143 123 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 178 1874 178 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 296 98 107 ImpSat
7303 237 37 53 Telecom Argentina Stet-France
8151 213 334 115 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 133 205 95 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 109 3 37 Red Universitaria Nacional
6147 98 70 20 Telefonica Del Peru
11992 87 8 37 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 68 5 28 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 860 629 Southwestern Bell Internet Se
18566 604 596 Covad Communications
11305 549 477 Interland Incorporated
3908 906 429 Supernet, Inc.
4323 603 427 Time Warner Communications, I
7843 630 426 Adelphia Corp.
7018 1337 415 AT&T
189 687 388 Genuity
4755 402 341 Videsh Sanchar Nigam Ltd. Aut
6197 520 304 BellSouth Network Solutions,
1221 1048 302 Telstra Pty Ltd
27364 319 301 Armstrong Cable Services
4355 405 297 EarthLink, Inc.
6198 474 289 BellSouth Network Solutions,
6347 363 282 SAVVIS Communications Corpora
1239 955 281 Sprint
22909 277 265 Comcast Cable Corporation
376 381 253 Reseau Interordinateurs Scien
17676 250 231 XTAGE CORPORATION
7066 488 227 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
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 /9:5 /10:8 /11:13 /12:53
/13:98 /14:256 /15:467 /16:7430 /17:1717 /18:3027
/19:8505 /20:8512 /21:6211 /22:9137 /23:10700 /24:69261
/25:155 /26:252 /27:55 /28:29 /29:23 /30:19
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 607 687 Genuity
18566 598 604 Covad Communications
3908 572 906 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 469 1337 AT&T
702 456 744 UUNET - Commercial IP service
701 430 1536 UUNET Technologies, Inc.
690 406 448 Merit Network
7843 394 630 Adelphia Corp.
6197 392 520 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 368 474 BellSouth Network Solutions,
1239 358 955 Sprint
20115 319 459 Charter Communications
27364 313 319 Armstrong Cable Services
1 223 610 GENUITY
4355 216 405 EarthLink, Inc.
3320 208 267 Deutsche Telekom AG
705 207 509 UUNET Technologies, Inc.
13601 202 212 Innerhost, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:700 13:1 15:4 16:1 17:3
20:7 24:877 25:1 32:95 38:40 40:21
44:2 57:17 61:257 62:359 63:1875 64:1866
65:1962 66:2593 67:182 68:383 69:173 80:383
81:127 82:2 128:190 129:172 130:47 131:80
132:26 134:174 135:4 136:116 137:107 138:110
139:64 140:169 141:123 142:92 143:44 144:106
145:13 146:276 147:96 148:289 149:62 150:76
151:69 152:233 153:61 154:7 155:117 156:56
157:45 158:123 159:139 160:45 161:75 162:131
163:81 164:314 165:140 166:95 167:319 168:173
169:79 170:318 171:8 192:5319 193:2467 194:1956
195:1075 196:472 198:3598 199:2708 200:2943 202:3841
203:5233 204:2990 205:2047 206:2339 207:2445 208:2602
209:2878 210:842 211:355 212:966 213:838 214:19
215:23 216:3429 217:639 218:91 219:49 220:97
221:3
End of report
