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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 10 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125807
Prefixes after maximum aggregation: 78416
Unique aggregates announced to Internet: 59278
Total ASes present in the Internet Routing Table: 15162
Origin-only ASes present in the Internet Routing Table: 13125
Origin ASes announcing only one prefix: 5979
Transit ASes present in the Internet Routing Table: 2037
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
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: 1229608448
Equivalent to 73 /8s, 74 /16s and 86 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54673
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21297
Total APNIC prefixes after maximum aggregation: 12347
Prefixes being announced from the APNIC address blocks: 19749
Unique aggregates announced from the APNIC address blocks: 12037
APNIC Region origin ASes present in the Internet Routing Table: 1793
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 113106912
Equivalent to 6 /8s, 189 /16s and 223 /24s
Percentage of available APNIC address space announced: 60.9
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: 77493
Total ARIN prefixes after maximum aggregation: 47997
Prefixes being announced from the ARIN address blocks: 55523
Unique aggregates announced from the ARIN address blocks: 16518
ARIN Region origin ASes present in the Internet Routing Table: 8387
ARIN Region origin ASes announcing only one prefix: 2876
ARIN Region transit ASes present in the Internet Routing Table: 809
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191652608
Equivalent to 11 /8s, 108 /16s and 99 /24s
Percentage of available ARIN address space announced: 71.4
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: 21688
Total RIPE prefixes after maximum aggregation: 15844
Prefixes being announced from the RIPE address blocks: 18209
Unique aggregates announced from the RIPE address blocks: 12054
RIPE Region origin ASes present in the Internet Routing Table: 4577
RIPE Region origin ASes announcing only one prefix: 2495
RIPE Region transit ASes present in the Internet Routing Table: 820
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 130126720
Equivalent to 7 /8s, 193 /16s and 147 /24s
Percentage of available RIPE address space announced: 70.5
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: 5327
Total LACNIC prefixes after maximum aggregation: 2228
Prefixes being announced from the LACNIC address blocks: 4751
Unique aggregates announced from the LACNIC address blocks: 3020
LACNIC Region origin ASes present in the Internet Routing Table: 333
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12505856
Equivalent to 0 /8s, 190 /16s and 211 /24s
Percentage of available LACNIC address space announced: 37.3
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 1085 1103 773 Telstra Pty Ltd
4755 415 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 388 1993 365 SINET Japan
703 386 382 307 UUNET
17557 369 26 146 Pakistan Telecom
2764 314 341 280 connect.com.au pty ltd
4814 294 85 21 China Telecom (Group)
7474 271 291 207 Optus Communications Pty Ltd
17676 247 3814 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 226 2038 116 Data Communications Bureau
9583 221 33 15 Satyam Infoway Ltd.,
4766 216 2478 162 Korea Internet Exchange for "
9443 183 58 82 Primus Telecommunications
9800 178 258 60 CHINA UNICOM
9238 138 8 17 TATA ISP
4739 136 57 125 Commerical Internet eXchange
9498 133 9 19 BHARTI BT INTERNET LTD.
4716 126 729 120 TTnet
9768 126 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1564 8904 1102 UUNET Technologies, Inc.
7018 1327 7151 920 AT&T
4151 1099 691 60 USDA
1239 965 3091 677 Sprint
7132 963 6476 208 Southwestern Bell Internet Se
3908 918 1571 473 Supernet, Inc.
1 728 2712 464 GENUITY
189 706 341 289 Genuity
7843 656 346 169 Adelphia Corp.
4323 587 514 169 Time Warner Communications, I
18566 576 160 8 Covad Communications
2386 565 483 272 AT&T Data Communications Serv
852 550 1156 431 Telus Advanced Communications
705 535 286 239 UUNET Technologies, Inc.
3561 507 2340 329 Cable & Wireless USA
209 490 2104 295 Qwest
7066 486 204 260 Virginia Polytechnic Institut
6197 483 340 193 BellSouth Network Solutions,
690 482 69 315 Merit Network
20115 467 191 288 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 757 2172 638 UUNET - Commercial IP service
3320 347 2004 229 Deutsche Telekom AG
3301 306 1157 296 TeliaNet Sweden
3215 303 852 174 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 226 327 188 SWIPnet Swedish IP Network
5400 202 112 113 BT Ignite European Backbone
8220 201 366 190 COLT Internet - International
719 193 307 125 LANLINK autonomous system
5515 189 795 153 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
20858 165 17 3 This AS will be used to conne
8708 157 44 151 Romania Data Systems S.A.
3303 141 517 140 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 123 1299 113 BTnet UK Regional network
3269 114 787 62 TELECOM ITALIA
3246 109 383 106 Song Networks
3352 107 748 30 Ibernet, Internet Access Netw
2874 97 85 38 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 105 ImpSat
7303 254 36 63 Telecom Argentina Stet-France
8151 220 335 122 UniNet S.A. de C.V.
11172 166 66 36 Servicios Alestra S.A de C.V
6503 141 206 101 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 104 3 32 Red Universitaria Nacional
6147 91 62 20 Telefonica Del Peru
11992 87 8 36 Integrated Systems
4270 75 18 10 Red de Interconexion Universi
8065 74 8 16 Empresas Publicas de Medellin
13999 74 36 8 Mega Cable S.A. de C.V.
1916 73 306 43 Fundacao de Amparo a Pesquisa
6535 73 5 22 Chilesat Servicios Empresari
15311 72 28 36 Telefonica Empresas
11830 67 5 27 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
4151 1099 1039 USDA
7132 963 755 Southwestern Bell Internet Se
18566 576 568 Covad Communications
7843 656 487 Adelphia Corp.
3908 918 445 Supernet, Inc.
4323 587 418 Time Warner Communications, I
189 706 417 Genuity
7018 1327 407 AT&T
4755 415 343 Videsh Sanchar Nigam Ltd. Aut
1221 1085 312 Telstra Pty Ltd
705 535 296 UUNET Technologies, Inc.
2386 565 293 AT&T Data Communications Serv
6197 483 290 BellSouth Network Solutions,
6347 371 290 SAVVIS Communications Corpora
4355 393 289 EarthLink, Inc.
1239 965 288 Sprint
6198 464 288 BellSouth Network Solutions,
22927 298 285 TELEFONICA DE ARGENTINA
4814 294 273 China Telecom (Group)
1 728 264 GENUITY
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
64512 PRIVATE 194.67.54.0/24 3216 Teleross, Moscow, Ru
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
192.16.52.0/24 1239 Sprint
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
192.136.135.0/24 1239 Sprint
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 /8:18 /9:5 /10:8 /11:13 /12:51
/13:93 /14:253 /15:468 /16:7419 /17:1680 /18:2971
/19:8387 /20:8394 /21:6002 /22:8969 /23:10652 /24:69942
/25:161 /26:183 /27:52 /28:25 /29:13 /30:22
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 574 918 Supernet, Inc.
18566 570 576 Covad Communications
702 465 757 UUNET - Commercial IP service
7018 463 1327 AT&T
701 433 1564 UUNET Technologies, Inc.
690 431 482 Merit Network
7843 419 656 Adelphia Corp.
7066 383 486 Virginia Polytechnic Institut
6198 363 464 BellSouth Network Solutions,
6197 360 483 BellSouth Network Solutions,
1239 358 965 Sprint
2386 347 565 AT&T Data Communications Serv
20115 330 467 Charter Communications
11305 312 336 Interland Incorporated
3320 290 347 Deutsche Telekom AG
4814 280 294 China Telecom (Group)
27364 263 270 Armstrong Cable Services
1 252 728 GENUITY
22927 236 298 TELEFONICA DE ARGENTINA
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:696 13:1 15:4 16:1 17:3 20:8
24:805 25:1 32:87 38:121 40:19 44:2
55:1 57:16 61:444 62:608 63:1864 64:1658
65:1928 66:2418 67:182 68:367 69:122 80:365
81:149 128:146 129:179 130:45 131:80 132:11
133:1 134:142 135:3 136:113 137:107 138:108
139:65 140:139 141:111 142:98 143:44 144:98
145:17 146:268 147:95 148:288 149:72 150:44
151:75 152:244 153:57 154:2 155:112 156:46
157:42 158:127 159:147 160:37 161:73 162:142
163:77 164:305 165:142 166:95 167:334 168:405
169:62 170:310 171:7 192:5344 193:2421 194:1979
195:1040 196:461 198:3561 199:3765 200:2958 202:3808
203:5171 204:3037 205:2061 206:2364 207:2400 208:2618
209:2866 210:782 211:324 212:952 213:792 214:20
215:23 216:3383 217:620 218:90 219:22 220:95
End of report
