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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 07 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126014
Prefixes after maximum aggregation: 78983
Unique aggregates announced to Internet: 59248
Total ASes present in the Internet Routing Table: 15294
Origin-only ASes present in the Internet Routing Table: 13271
Origin ASes announcing only one prefix: 5999
Transit ASes present in the Internet Routing Table: 2023
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 28
Number of addresses announced to Internet: 1234056768
Equivalent to 73 /8s, 142 /16s and 54 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55629
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21758
Total APNIC prefixes after maximum aggregation: 12610
Prefixes being announced from the APNIC address blocks: 20159
Unique aggregates announced from the APNIC address blocks: 12149
APNIC Region origin ASes present in the Internet Routing Table: 1811
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 114681248
Equivalent to 6 /8s, 213 /16s and 229 /24s
Percentage of available APNIC address space announced: 61.8
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: 77216
Total ARIN prefixes after maximum aggregation: 48132
Prefixes being announced from the ARIN address blocks: 55329
Unique aggregates announced from the ARIN address blocks: 16369
ARIN Region origin ASes present in the Internet Routing Table: 8448
ARIN Region origin ASes announcing only one prefix: 2879
ARIN Region transit ASes present in the Internet Routing Table: 813
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192499200
Equivalent to 11 /8s, 121 /16s and 78 /24s
Percentage of available ARIN address space announced: 71.7
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: 21667
Total RIPE prefixes after maximum aggregation: 15982
Prefixes being announced from the RIPE address blocks: 18167
Unique aggregates announced from the RIPE address blocks: 12192
RIPE Region origin ASes present in the Internet Routing Table: 4629
RIPE Region origin ASes announcing only one prefix: 2519
RIPE Region transit ASes present in the Internet Routing Table: 815
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 131957248
Equivalent to 7 /8s, 221 /16s and 130 /24s
Percentage of available RIPE address space announced: 71.5
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: 5369
Total LACNIC prefixes after maximum aggregation: 2259
Prefixes being announced from the LACNIC address blocks: 4786
Unique aggregates announced from the LACNIC address blocks: 2993
LACNIC Region origin ASes present in the Internet Routing Table: 334
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12690432
Equivalent to 0 /8s, 193 /16s and 164 /24s
Percentage of available LACNIC address space announced: 37.8
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 1076 1103 769 Telstra Pty Ltd
4755 421 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 349 25 149 Pakistan Telecom
703 343 371 272 UUNET
2764 314 341 280 connect.com.au pty ltd
4814 297 86 19 China Telecom (Group)
7474 269 306 203 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 241 2067 120 Data Communications Bureau
9583 229 34 18 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9443 182 58 82 Primus Telecommunications
9800 182 261 59 CHINA UNICOM
9498 147 10 18 BHARTI BT INTERNET LTD.
4739 138 57 126 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 130 156 104 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 1552 8928 1092 UUNET Technologies, Inc.
7018 1329 7193 920 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 948 3022 666 Sprint
3908 919 1557 482 Supernet, Inc.
189 705 341 292 Genuity
11305 647 170 72 Interland Incorporated
1 634 2607 429 GENUITY
7843 631 356 180 Adelphia Corp.
4323 598 525 175 Time Warner Communications, I
18566 588 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
705 509 273 332 UUNET Technologies, Inc.
209 494 2106 300 Qwest
6197 491 343 194 BellSouth Network Solutions,
7066 482 204 259 Virginia Polytechnic Institut
6198 466 230 177 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 452 66 296 Merit Network
2386 440 521 250 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 749 2173 636 UUNET - Commercial IP service
3301 302 1171 289 TeliaNet Sweden
3215 295 880 168 France Telecom Transpac
3320 265 2004 227 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 224 311 186 SWIPnet Swedish IP Network
8220 223 384 211 COLT Internet - International
5400 222 139 131 BT Ignite European Backbone
719 215 307 124 LANLINK autonomous system
5515 181 795 152 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
8895 131 58 29 KACST/ISU Riyadh Autonomous S
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3269 117 823 64 TELECOM ITALIA
3246 116 366 114 Song Networks
3352 109 780 32 Ibernet, Internet Access Netw
5511 95 177 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 295 98 110 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 171 82 41 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 131 189 94 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 106 3 34 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 89 8 37 Integrated Systems
8065 80 8 15 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
13999 68 36 8 Mega Cable S.A. de C.V.
4270 67 18 9 Red de Interconexion Universi
11830 66 4 27 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 1015 788 Southwestern Bell Internet Se
18566 588 580 Covad Communications
11305 647 575 Interland Incorporated
7843 631 451 Adelphia Corp.
3908 919 437 Supernet, Inc.
4323 598 423 Time Warner Communications, I
189 705 413 Genuity
7018 1329 409 AT&T
4755 421 350 Videsh Sanchar Nigam Ltd. Aut
1221 1076 307 Telstra Pty Ltd
6197 491 297 BellSouth Network Solutions,
27364 315 297 Armstrong Cable Services
4355 404 293 EarthLink, Inc.
6198 466 289 BellSouth Network Solutions,
6347 364 286 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 948 282 Sprint
4814 297 278 China Telecom (Group)
376 384 268 Reseau Interordinateurs Scien
22909 274 264 Comcast Cable Corporation
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
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
192.228.21.0/24 27299 CIRA Canadian Internet Regist
192.228.22.0/24 27299 CIRA Canadian Internet Regist
192.228.23.0/24 27299 CIRA Canadian Internet Regist
192.228.24.0/24 27299 CIRA Canadian Internet Regist
192.228.25.0/24 27299 CIRA Canadian Internet Regist
192.228.26.0/24 27299 CIRA Canadian Internet Regist
192.228.27.0/24 27299 CIRA Canadian Internet Regist
192.228.28.0/24 27299 CIRA Canadian Internet Regist
192.228.29.0/24 27299 CIRA Canadian Internet Regist
192.228.30.0/24 27299 CIRA Canadian Internet Regist
192.228.31.0/24 27299 CIRA Canadian Internet Regist
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:8 /11:13 /12:52
/13:99 /14:256 /15:470 /16:7428 /17:1675 /18:2993
/19:8463 /20:8535 /21:6154 /22:9085 /23:10669 /24:69548
/25:160 /26:215 /27:55 /28:40 /29:26 /30:21
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 628 705 Genuity
18566 582 588 Covad Communications
3908 575 919 Supernet, Inc.
11305 573 647 Interland Incorporated
7018 463 1329 AT&T
702 459 749 UUNET - Commercial IP service
701 437 1552 UUNET Technologies, Inc.
690 410 452 Merit Network
7843 393 631 Adelphia Corp.
7066 379 482 Virginia Polytechnic Institut
6197 367 491 BellSouth Network Solutions,
6198 364 466 BellSouth Network Solutions,
1239 357 948 Sprint
20115 323 462 Charter Communications
27364 308 315 Armstrong Cable Services
4814 282 297 China Telecom (Group)
22927 236 298 TELEFONICA DE ARGENTINA
1 234 634 GENUITY
2386 220 440 AT&T Data Communications Serv
3215 219 295 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:706 13:1 15:4 16:1 17:3
20:8 24:858 25:1 32:87 38:60 40:20
44:2 57:17 61:468 62:346 63:1867 64:1934
65:1962 66:2583 67:178 68:380 69:164 80:352
81:126 128:138 129:179 130:47 131:80 132:26
134:176 135:4 136:117 137:107 138:110 139:64
140:137 141:116 142:94 143:42 144:105 145:14
146:276 147:97 148:289 149:61 150:43 151:70
152:230 153:57 154:3 155:116 156:53 157:37
158:126 159:139 160:43 161:76 162:128 163:76
164:309 165:143 166:93 167:323 168:410 169:61
170:313 171:7 192:5333 193:2455 194:1953 195:1046
196:472 198:3558 199:2721 200:2984 202:3780 203:5262
204:2997 205:2032 206:2368 207:2417 208:2578 209:2890
210:822 211:332 212:1075 213:792 214:20 215:23
216:3529 217:623 218:87 219:39 220:92 221:3
End of report
