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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 23 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128124
Prefixes after maximum aggregation: 80217
Unique aggregates announced to Internet: 61816
Total ASes present in the Internet Routing Table: 15860
Origin-only ASes present in the Internet Routing Table: 13753
Origin ASes announcing only one prefix: 6260
Transit ASes present in the Internet Routing Table: 2107
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1226751012
Equivalent to 73 /8s, 30 /16s and 188 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56958
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22559
Total APNIC prefixes after maximum aggregation: 12721
Prefixes being announced from the APNIC address blocks: 20945
Unique aggregates announced from the APNIC address blocks: 12364
APNIC Region origin ASes present in the Internet Routing Table: 1898
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 310
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 122237952
Equivalent to 7 /8s, 73 /16s and 52 /24s
Percentage of available APNIC address space announced: 65.9
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: 77521
Total ARIN prefixes after maximum aggregation: 48694
Prefixes being announced from the ARIN address blocks: 55365
Unique aggregates announced from the ARIN address blocks: 17524
ARIN Region origin ASes present in the Internet Routing Table: 8683
ARIN Region origin ASes announcing only one prefix: 2997
ARIN Region transit ASes present in the Internet Routing Table: 836
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 197254176
Equivalent to 11 /8s, 193 /16s and 220 /24s
Percentage of available ARIN address space announced: 73.5
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: 22636
Total RIPE prefixes after maximum aggregation: 16511
Prefixes being announced from the RIPE address blocks: 19155
Unique aggregates announced from the RIPE address blocks: 12830
RIPE Region origin ASes present in the Internet Routing Table: 4861
RIPE Region origin ASes announcing only one prefix: 2618
RIPE Region transit ASes present in the Internet Routing Table: 857
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136462656
Equivalent to 8 /8s, 34 /16s and 65 /24s
Percentage of available RIPE address space announced: 73.9
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: 5406
Total LACNIC prefixes after maximum aggregation: 2291
Prefixes being announced from the LACNIC address blocks: 4877
Unique aggregates announced from the LACNIC address blocks: 3178
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 100
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13299456
Equivalent to 0 /8s, 202 /16s and 239 /24s
Percentage of available LACNIC address space announced: 39.6
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 972 1108 690 Telstra Pty Ltd
4755 403 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 376 1896 350 SINET Japan
4134 340 2228 108 Data Communications Bureau
703 335 372 264 UUNET
2764 291 322 258 connect.com.au pty ltd
17557 291 21 136 Pakistan Telecom
7474 269 306 209 Optus Communications Pty Ltd
17676 264 3980 26 XTAGE CORPORATION
9583 252 38 25 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9498 186 20 16 BHARTI BT INTERNET LTD.
9443 185 58 82 Primus Telecommunications
9929 179 160 36 China Netcom Corp.
4538 174 1586 21 China Education and Research
9942 174 69 106 COMindico Australia
17642 155 40 116 RequestDSL BGP AS# for Sydney
9238 141 9 22 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1463 8719 1019 UUNET Technologies, Inc.
7018 1397 7139 975 AT&T
3908 918 1573 491 Supernet, Inc.
1239 906 3035 651 Sprint
18566 688 176 8 Covad Communications
4323 664 571 189 Time Warner Communications, I
189 620 432 356 Genuity
6197 614 397 270 BellSouth Network Solutions,
3356 528 10677 445 Level 3 Communications, LLC
7843 525 454 135 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 502 2127 286 Qwest
6198 494 329 192 BellSouth Network Solutions,
20115 470 202 293 Charter Communications
7066 466 205 262 Virginia Polytechnic Institut
1 441 1049 277 GENUITY
10753 421 86 206 XCOM Technologies, INC.
690 411 59 276 Merit Network
705 408 184 249 UUNET Technologies, Inc.
4355 394 336 110 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 711 2121 590 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 270 1989 230 Deutsche Telekom AG
8220 256 434 245 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
3215 183 721 106 France Telecom Transpac
5400 183 174 134 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 Romania Data Systems S.A.
3303 142 540 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 125 376 123 Song Networks
3269 119 853 65 TELECOM ITALIA
20858 114 17 3 This AS will be used to conne
2856 112 1293 103 BTnet UK Regional network
25186 104 144 71 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 103 105 ImpSat
8151 231 350 120 UniNet S.A. de C.V.
7303 229 40 62 Telecom Argentina Stet-France
11172 188 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 130 205 93 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 103 3 36 Red Universitaria Nacional
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 72 21 27 Instituto Costarricense de El
4270 67 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
11992 61 7 33 Integrated Systems
7984 59 12 40 Global One Colombia
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 688 680 Covad Communications
4323 664 475 Time Warner Communications, I
3908 918 427 Supernet, Inc.
7018 1397 422 AT&T
7843 525 390 Adelphia Corp.
6197 614 344 BellSouth Network Solutions,
4755 403 330 Videsh Sanchar Nigam Ltd. Aut
6198 494 302 BellSouth Network Solutions,
27364 320 297 Armstrong Cable Services
4355 394 284 EarthLink, Inc.
1221 972 282 Telstra Pty Ltd
22909 293 275 Comcast Cable Corporation
6347 353 272 SAVVIS Communications Corpora
189 620 264 Genuity
1239 906 255 Sprint
376 362 247 Reseau Interordinateurs Scien
22773 269 245 Cox Communications, Inc. Atla
25844 242 240 Skadden, Arps, Slate, Meagher
17676 264 238 XTAGE CORPORATION
6140 340 235 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
23780 UNALLOCATED 211.15.112.0/20 2516 Kokusai Denshin Denw
23780 UNALLOCATED 211.19.224.0/19 2516 Kokusai Denshin Denw
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
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 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:265 /15:471 /16:7440 /17:1755 /18:3132
/19:8463 /20:8803 /21:6429 /22:9448 /23:10933 /24:70176
/25:155 /26:201 /27:152 /28:27 /29:9 /30:51
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 688 Covad Communications
3908 579 918 Supernet, Inc.
189 536 620 Genuity
7018 500 1397 AT&T
6197 478 614 BellSouth Network Solutions,
701 439 1463 UUNET Technologies, Inc.
702 426 711 UUNET - Commercial IP service
10753 389 421 XCOM Technologies, INC.
6198 380 494 BellSouth Network Solutions,
690 371 411 Merit Network
7066 362 466 Virginia Polytechnic Institut
20115 316 470 Charter Communications
1239 315 906 Sprint
27364 314 320 Armstrong Cable Services
3356 259 528 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 215 525 Adelphia Corp.
4355 213 394 EarthLink, Inc.
3320 209 270 Deutsche Telekom AG
209 200 502 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:711 13:1 15:4 16:1 17:3
20:6 24:833 25:1 32:84 38:46 40:23
44:2 55:1 57:14 61:311 62:523 63:1873
64:1751 65:1963 66:2668 67:287 68:359 69:245
80:419 81:137 82:16 128:145 129:168 130:62
131:84 132:16 133:1 134:169 135:9 136:186
137:114 138:126 139:49 140:162 141:138 142:101
143:44 144:87 145:14 146:275 147:63 148:301
149:80 150:121 151:68 152:218 153:58 154:5
155:127 156:58 157:54 158:135 159:139 160:45
161:69 162:358 163:76 164:290 165:154 166:97
167:305 168:178 169:96 170:325 171:9 192:5325
193:2461 194:1970 195:1145 196:465 198:3592 199:2748
200:2990 202:3972 203:5278 204:2989 205:2041 206:2331
207:2499 208:2570 209:2702 210:908 211:364 212:955
213:928 214:16 215:22 216:3256 217:719 218:105
219:35 220:115 221:11 222:1
End of report
