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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 05 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126583
Prefixes after maximum aggregation: 79219
Unique aggregates announced to Internet: 59884
Total ASes present in the Internet Routing Table: 15444
Origin-only ASes present in the Internet Routing Table: 13387
Origin ASes announcing only one prefix: 6068
Transit ASes present in the Internet Routing Table: 2057
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: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1244340064
Equivalent to 74 /8s, 43 /16s and 31 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 56127
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21798
Total APNIC prefixes after maximum aggregation: 12672
Prefixes being announced from the APNIC address blocks: 20221
Unique aggregates announced from the APNIC address blocks: 12339
APNIC Region origin ASes present in the Internet Routing Table: 1849
APNIC Region origin ASes announcing only one prefix: 531
APNIC Region transit ASes present in the Internet Routing Table: 305
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 116801824
Equivalent to 6 /8s, 246 /16s and 65 /24s
Percentage of available APNIC address space announced: 62.9
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: 77131
Total ARIN prefixes after maximum aggregation: 48140
Prefixes being announced from the ARIN address blocks: 55054
Unique aggregates announced from the ARIN address blocks: 16544
ARIN Region origin ASes present in the Internet Routing Table: 8487
ARIN Region origin ASes announcing only one prefix: 2891
ARIN Region transit ASes present in the Internet Routing Table: 816
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193916160
Equivalent to 11 /8s, 142 /16s and 237 /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: 22257
Total RIPE prefixes after maximum aggregation: 16111
Prefixes being announced from the RIPE address blocks: 18672
Unique aggregates announced from the RIPE address blocks: 12334
RIPE Region origin ASes present in the Internet Routing Table: 4693
RIPE Region origin ASes announcing only one prefix: 2555
RIPE Region transit ASes present in the Internet Routing Table: 833
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 132691136
Equivalent to 7 /8s, 232 /16s and 180 /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: 5395
Total LACNIC prefixes after maximum aggregation: 2296
Prefixes being announced from the LACNIC address blocks: 4788
Unique aggregates announced from the LACNIC address blocks: 3095
LACNIC Region origin ASes present in the Internet Routing Table: 340
LACNIC Region origin ASes announcing only one prefix: 91
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12816896
Equivalent to 0 /8s, 195 /16s and 146 /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 1054 1069 745 Telstra Pty Ltd
4755 405 133 59 Videsh Sanchar Nigam Ltd. Aut
2907 372 1894 348 SINET Japan
17557 344 24 150 Pakistan Telecom
703 334 370 267 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 268 306 200 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 777 210 DACOM Corporation
9583 234 37 22 Satyam Infoway Ltd.,
4134 228 1916 113 Data Communications Bureau
4766 222 2475 166 Korea Internet Exchange for "
9800 190 307 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 167 11 31 BHARTI BT INTERNET LTD.
9929 158 170 34 China Netcom Corp.
4739 141 58 130 Commerical Internet eXchange
9238 133 8 23 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 1525 8815 1071 UUNET Technologies, Inc.
7018 1340 7180 925 AT&T
1239 951 2998 666 Sprint
3908 901 1517 471 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 690 372 299 Genuity
18566 619 160 8 Covad Communications
4323 610 526 177 Time Warner Communications, I
7843 609 360 237 Adelphia Corp.
1 581 2456 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 523 366 219 BellSouth Network Solutions,
209 519 2127 305 Qwest
705 509 271 326 UUNET Technologies, Inc.
7066 487 204 261 Virginia Polytechnic Institut
6198 478 267 182 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 449 64 295 Merit Network
2386 408 541 230 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1020 2170 627 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 268 2004 229 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 245 801 141 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 224 307 186 SWIPnet Swedish IP Network
5400 199 142 116 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 125 1315 115 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 96 177 74 France Telecom
6746 89 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 299 98 107 ImpSat
7303 237 37 59 Telecom Argentina Stet-France
8151 213 334 114 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 134 205 96 AVANTEL, S.A.
11340 133 3 45 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
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 6 39 Global One Venezuela
7984 61 12 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 619 611 Covad Communications
7132 838 606 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 610 433 Time Warner Communications, I
3908 901 430 Supernet, Inc.
7018 1340 415 AT&T
702 1020 393 UUNET - Commercial IP service
189 690 391 Genuity
7843 609 372 Adelphia Corp.
4755 405 346 Videsh Sanchar Nigam Ltd. Aut
1221 1054 309 Telstra Pty Ltd
6197 523 304 BellSouth Network Solutions,
6198 478 296 BellSouth Network Solutions,
4355 404 295 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 951 285 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 380 251 Reseau Interordinateurs Scien
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
64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com
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 /8:19 /9:6 /10:8 /11:13 /12:54
/13:97 /14:258 /15:473 /16:7417 /17:1722 /18:3041
/19:8527 /20:8530 /21:6252 /22:9177 /23:10727 /24:69633
/25:172 /26:272 /27:74 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 714 1020 UUNET - Commercial IP service
18566 613 619 Covad Communications
189 610 690 Genuity
3908 576 901 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 472 1340 AT&T
701 429 1525 UUNET Technologies, Inc.
690 406 449 Merit Network
6197 394 523 BellSouth Network Solutions,
7066 383 487 Virginia Polytechnic Institut
6198 373 478 BellSouth Network Solutions,
7843 372 609 Adelphia Corp.
1239 355 951 Sprint
20115 320 460 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
1 221 581 GENUITY
4355 216 404 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 208 509 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 24:856 25:1 32:95 38:42 40:21
44:2 57:17 61:265 62:357 63:1869 64:1769
65:1966 66:2552 67:194 68:385 69:172 80:394
81:122 82:3 128:143 129:166 130:52 131:80
132:26 134:175 135:4 136:114 137:105 138:114
139:67 140:168 141:117 142:94 143:44 144:104
145:13 146:272 147:95 148:289 149:62 150:83
151:70 152:233 153:101 154:3 155:119 156:57
157:46 158:128 159:140 160:45 161:75 162:376
163:78 164:318 165:143 166:95 167:322 168:174
169:105 170:319 171:8 192:5330 193:2597 194:1969
195:1090 196:471 198:3589 199:2698 200:2928 202:3875
203:5253 204:2973 205:2044 206:2287 207:2430 208:2607
209:2876 210:857 211:360 212:1013 213:863 214:19
215:23 216:3433 217:651 218:91 219:57 220:97
221:8
End of report
