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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 09 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127972
Prefixes after maximum aggregation: 80103
Unique aggregates announced to Internet: 61684
Total ASes present in the Internet Routing Table: 15779
Origin-only ASes present in the Internet Routing Table: 13680
Origin ASes announcing only one prefix: 6209
Transit ASes present in the Internet Routing Table: 2099
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 27
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: 15
Number of addresses announced to Internet: 1242155552
Equivalent to 74 /8s, 9 /16s and 202 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56850
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22462
Total APNIC prefixes after maximum aggregation: 12721
Prefixes being announced from the APNIC address blocks: 20886
Unique aggregates announced from the APNIC address blocks: 12423
APNIC Region origin ASes present in the Internet Routing Table: 1894
APNIC Region origin ASes announcing only one prefix: 537
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 121597184
Equivalent to 7 /8s, 63 /16s and 109 /24s
Percentage of available APNIC address space announced: 65.5
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: 77723
Total ARIN prefixes after maximum aggregation: 48654
Prefixes being announced from the ARIN address blocks: 55408
Unique aggregates announced from the ARIN address blocks: 17314
ARIN Region origin ASes present in the Internet Routing Table: 8633
ARIN Region origin ASes announcing only one prefix: 2960
ARIN Region transit ASes present in the Internet Routing Table: 837
Average ARIN Region AS path length visible: 4.9
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196692512
Equivalent to 11 /8s, 185 /16s and 74 /24s
Percentage of available ARIN address space announced: 73.3
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: 22369
Total RIPE prefixes after maximum aggregation: 16440
Prefixes being announced from the RIPE address blocks: 18915
Unique aggregates announced from the RIPE address blocks: 12774
RIPE Region origin ASes present in the Internet Routing Table: 4833
RIPE Region origin ASes announcing only one prefix: 2616
RIPE Region transit ASes present in the Internet Routing Table: 853
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 135758656
Equivalent to 8 /8s, 23 /16s and 131 /24s
Percentage of available RIPE address space announced: 73.6
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: 5415
Total LACNIC prefixes after maximum aggregation: 2288
Prefixes being announced from the LACNIC address blocks: 4894
Unique aggregates announced from the LACNIC address blocks: 3148
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 96
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13130240
Equivalent to 0 /8s, 200 /16s and 90 /24s
Percentage of available LACNIC address space announced: 39.1
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 980 1124 694 Telstra Pty Ltd
4755 405 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 337 373 267 UUNET
4134 330 2220 111 Data Communications Bureau
17557 304 22 135 Pakistan Telecom
2764 287 322 256 connect.com.au pty ltd
7474 267 290 208 Optus Communications Pty Ltd
17676 256 3942 20 XTAGE CORPORATION
9583 247 38 22 Satyam Infoway Ltd.,
3786 239 773 205 DACOM Corporation
4766 228 2461 171 Korea Internet Exchange for "
9800 201 331 50 CHINA UNICOM
9443 186 58 82 Primus Telecommunications
9498 181 16 31 BHARTI BT INTERNET LTD.
4538 173 1586 20 China Education and Research
9929 172 157 35 China Netcom Corp.
9942 156 69 100 COMindico Australia
17642 154 40 115 RequestDSL BGP AS# for Sydney
4837 141 1054 87 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1479 8770 1040 UUNET Technologies, Inc.
7018 1387 7107 974 AT&T
3908 926 1573 492 Supernet, Inc.
1239 901 3037 647 Sprint
18566 675 160 8 Covad Communications
189 674 451 334 Genuity
4323 633 552 181 Time Warner Communications, I
6197 612 395 271 BellSouth Network Solutions,
7843 554 429 168 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 510 2129 294 Qwest
6198 496 277 197 BellSouth Network Solutions,
7066 493 205 263 Virginia Polytechnic Institut
20115 483 203 292 Charter Communications
3356 475 10674 394 Level 3 Communications, LLC
1 464 1054 297 GENUITY
705 418 184 256 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 394 340 111 EarthLink, Inc.
10753 390 80 195 XCOM Technologies, INC.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 719 2121 597 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 269 1989 229 Deutsche Telekom AG
8220 245 431 234 COLT Internet - International
1257 240 374 187 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
3215 212 736 118 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 180 175 131 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 143 540 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 124 376 122 Song Networks
3269 116 819 63 TELECOM ITALIA
2856 112 1295 103 BTnet UK Regional network
3352 104 824 34 Ibernet, Internet Access Netw
2647 91 4129 44 SITA
6746 88 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 335 103 106 ImpSat
7303 240 39 57 Telecom Argentina Stet-France
8151 229 366 119 UniNet S.A. de C.V.
11172 189 95 45 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 132 189 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
11992 88 8 37 Integrated Systems
6147 85 70 17 Telefonica Del Peru
8065 81 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
1916 72 305 42 Fundacao de Amparo a Pesquisa
11830 72 21 26 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 68 6 41 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
13999 62 36 8 Mega Cable S.A. de C.V.
7984 59 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 675 667 Covad Communications
4323 633 452 Time Warner Communications, I
3908 926 434 Supernet, Inc.
7018 1387 413 AT&T
7843 554 386 Adelphia Corp.
6197 612 341 BellSouth Network Solutions,
189 674 340 Genuity
4755 405 334 Videsh Sanchar Nigam Ltd. Aut
6198 496 299 BellSouth Network Solutions,
27364 317 294 Armstrong Cable Services
1221 980 286 Telstra Pty Ltd
4355 394 283 EarthLink, Inc.
6347 355 275 SAVVIS Communications Corpora
22909 292 273 Comcast Cable Corporation
1239 901 254 Sprint
25844 241 239 Skadden, Arps, Slate, Meagher
376 352 237 Reseau Interordinateurs Scien
17676 256 236 XTAGE CORPORATION
22773 253 232 Cox Communications, Inc. Atla
7066 493 230 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65128 PRIVATE 128.12.0.0/23 32 Stanford University
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
189.186.184.0/24 4471 Michigan Internet Cooperative
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
192.172.0.0/19 568 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 /9:4 /10:6 /11:12 /12:55
/13:98 /14:265 /15:473 /16:7433 /17:1759 /18:3101
/19:8412 /20:8745 /21:6408 /22:9421 /23:10940 /24:70201
/25:164 /26:204 /27:145 /28:25 /29:10 /30:49
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 669 675 Covad Communications
189 589 674 Genuity
3908 586 926 Supernet, Inc.
7018 495 1387 AT&T
6197 476 612 BellSouth Network Solutions,
701 441 1479 UUNET Technologies, Inc.
702 435 719 UUNET - Commercial IP service
7066 389 493 Virginia Polytechnic Institut
6198 386 496 BellSouth Network Solutions,
10753 376 390 XCOM Technologies, INC.
690 371 411 Merit Network
20115 328 483 Charter Communications
27364 311 317 Armstrong Cable Services
1239 310 901 Sprint
7843 261 554 Adelphia Corp.
25844 241 241 Skadden, Arps, Slate, Meagher
4355 212 394 EarthLink, Inc.
3320 208 269 Deutsche Telekom AG
3356 206 475 Level 3 Communications, LLC
209 205 510 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:710 13:1 15:4 16:1 17:4
20:6 24:838 25:1 32:85 38:45 40:23
44:2 55:1 57:15 61:307 62:397 63:1868
64:1773 65:2019 66:2694 67:273 68:391 69:261
80:415 81:119 82:15 128:147 129:169 130:62
131:84 132:14 134:173 135:7 136:188 137:117
138:126 139:48 140:154 141:134 142:101 143:44
144:85 145:13 146:275 147:63 148:302 149:78
150:121 151:69 152:218 153:57 154:4 155:126
156:58 157:50 158:128 159:134 160:44 161:76
162:359 163:77 164:318 165:140 166:97 167:313
168:179 169:96 170:322 171:9 189:1 192:5388
193:2495 194:1974 195:1130 196:464 198:3613 199:2750
200:3020 202:3929 203:5268 204:3002 205:2041 206:2331
207:2487 208:2557 209:2731 210:909 211:366 212:956
213:907 214:16 215:22 216:3224 217:713 218:108
219:36 220:103 221:11
End of report
