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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 28 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126337
Prefixes after maximum aggregation: 79163
Unique aggregates announced to Internet: 59981
Total ASes present in the Internet Routing Table: 15402
Origin-only ASes present in the Internet Routing Table: 13352
Origin ASes announcing only one prefix: 6052
Transit ASes present in the Internet Routing Table: 2050
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 5.0
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: 1251894816
Equivalent to 74 /8s, 158 /16s and 102 /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: 55890
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21579
Total APNIC prefixes after maximum aggregation: 12603
Prefixes being announced from the APNIC address blocks: 20016
Unique aggregates announced from the APNIC address blocks: 12248
APNIC Region origin ASes present in the Internet Routing Table: 1823
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 296
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 115810848
Equivalent to 6 /8s, 231 /16s and 34 /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: 77197
Total ARIN prefixes after maximum aggregation: 48183
Prefixes being announced from the ARIN address blocks: 55081
Unique aggregates announced from the ARIN address blocks: 16495
ARIN Region origin ASes present in the Internet Routing Table: 8483
ARIN Region origin ASes announcing only one prefix: 2891
ARIN Region transit ASes present in the Internet Routing Table: 819
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193717760
Equivalent to 11 /8s, 139 /16s and 230 /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: 22182
Total RIPE prefixes after maximum aggregation: 16105
Prefixes being announced from the RIPE address blocks: 18581
Unique aggregates announced from the RIPE address blocks: 12336
RIPE Region origin ASes present in the Internet Routing Table: 4682
RIPE Region origin ASes announcing only one prefix: 2550
RIPE Region transit ASes present in the Internet Routing Table: 838
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132604288
Equivalent to 7 /8s, 231 /16s and 97 /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: 5378
Total LACNIC prefixes after maximum aggregation: 2272
Prefixes being announced from the LACNIC address blocks: 4798
Unique aggregates announced from the LACNIC address blocks: 3021
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: 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: 12797440
Equivalent to 0 /8s, 195 /16s and 70 /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 1047 1069 746 Telstra Pty Ltd
4755 402 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 344 24 152 Pakistan Telecom
703 337 371 269 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 266 306 199 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 231 37 19 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 219 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 140 58 128 Commerical Internet eXchange
9238 136 8 19 TATA ISP
4716 128 745 122 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 1538 8847 1083 UUNET Technologies, Inc.
7018 1336 7182 923 AT&T
1239 957 3021 673 Sprint
3908 907 1533 478 Supernet, Inc.
7132 834 6575 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 632 358 206 Adelphia Corp.
1 605 2584 409 GENUITY
4323 605 526 176 Time Warner Communications, I
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,
705 509 271 330 UUNET Technologies, Inc.
209 498 2109 301 Qwest
7066 488 204 261 Virginia Polytechnic Institut
6198 475 263 186 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 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 206 142 128 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 297 98 106 ImpSat
7303 237 37 53 Telecom Argentina Stet-France
8151 212 334 114 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.
11340 119 3 40 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
6147 98 70 20 Telefonica Del Peru
11992 88 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
15034 62 5 33 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 907 429 Supernet, Inc.
4323 605 429 Time Warner Communications, I
7843 632 426 Adelphia Corp.
7018 1336 413 AT&T
702 1028 396 UUNET - Commercial IP service
189 687 388 Genuity
4755 402 342 Videsh Sanchar Nigam Ltd. Aut
6197 521 305 BellSouth Network Solutions,
1221 1047 301 Telstra Pty Ltd
27364 319 301 Armstrong Cable Services
4355 406 297 EarthLink, Inc.
6198 475 289 BellSouth Network Solutions,
1239 957 284 Sprint
6347 363 282 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 /15:466 /16:7423 /17:1720 /18:3028
/19:8505 /20:8496 /21:6221 /22:9164 /23:10740 /24:69530
/25:157 /26:253 /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 573 907 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 467 1336 AT&T
701 431 1538 UUNET Technologies, Inc.
690 406 448 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 359 957 Sprint
20115 319 459 Charter Communications
27364 313 319 Armstrong Cable Services
25844 255 255 Skadden, Arps, Slate, Meagher
1 223 605 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 12:700 13:1 15:4 16:1 17:3
20:7 24:881 25:1 32:95 38:41 40:21
44:2 57:17 61:261 62:367 63:1875 64:1748
65:1946 66:2547 67:188 68:384 69:149 80:382
81:127 82:2 128:191 129:168 130:47 131:79
132:26 134:173 135:4 136:116 137:107 138:110
139:65 140:169 141:123 142:94 143:44 144:106
145:13 146:276 147:96 148:289 149:62 150:76
151:69 152:231 153:101 154:7 155:117 156:57
157:45 158:128 159:142 160:45 161:75 162:380
163:81 164:314 165:141 166:95 167:319 168:174
169:81 170:318 171:8 192:5333 193:2595 194:1967
195:1082 196:474 198:3594 199:2705 200:2936 202:3834
203:5235 204:2990 205:2048 206:2340 207:2431 208:2603
209:2886 210:843 211:355 212:981 213:843 214:19
215:23 216:3421 217:639 218:91 219:50 220:95
221:3
End of report
