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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 10 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127866
Prefixes after maximum aggregation: 80076
Unique aggregates announced to Internet: 61755
Total ASes present in the Internet Routing Table: 15794
Origin-only ASes present in the Internet Routing Table: 13690
Origin ASes announcing only one prefix: 6220
Transit ASes present in the Internet Routing Table: 2104
Transit-only ASes present in the Internet Routing Table: 73
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1242202272
Equivalent to 74 /8s, 10 /16s and 128 /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: 56759
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22333
Total APNIC prefixes after maximum aggregation: 12674
Prefixes being announced from the APNIC address blocks: 20753
Unique aggregates announced from the APNIC address blocks: 12446
APNIC Region origin ASes present in the Internet Routing Table: 1892
APNIC Region origin ASes announcing only one prefix: 540
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 121599744
Equivalent to 7 /8s, 63 /16s and 119 /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: 77740
Total ARIN prefixes after maximum aggregation: 48663
Prefixes being announced from the ARIN address blocks: 55457
Unique aggregates announced from the ARIN address blocks: 17350
ARIN Region origin ASes present in the Internet Routing Table: 8643
ARIN Region origin ASes announcing only one prefix: 2964
ARIN Region transit ASes present in the Internet Routing Table: 835
Average ARIN Region AS path length visible: 4.9
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196804896
Equivalent to 11 /8s, 187 /16s and 1 /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: 22378
Total RIPE prefixes after maximum aggregation: 16450
Prefixes being announced from the RIPE address blocks: 18921
Unique aggregates announced from the RIPE address blocks: 12782
RIPE Region origin ASes present in the Internet Routing Table: 4840
RIPE Region origin ASes announcing only one prefix: 2621
RIPE Region transit ASes present in the Internet Routing Table: 858
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 135845184
Equivalent to 8 /8s, 24 /16s and 213 /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: 5413
Total LACNIC prefixes after maximum aggregation: 2289
Prefixes being announced from the LACNIC address blocks: 4884
Unique aggregates announced from the LACNIC address blocks: 3141
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 95
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13104896
Equivalent to 0 /8s, 199 /16s and 247 /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 982 1125 695 Telstra Pty Ltd
4755 405 134 73 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 334 371 265 UUNET
4134 330 2220 111 Data Communications Bureau
17557 303 22 134 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 244 38 22 Satyam Infoway Ltd.,
3786 235 773 202 DACOM Corporation
4766 228 2461 171 Korea Internet Exchange for "
9800 202 331 51 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 173 159 36 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 1481 8770 1041 UUNET Technologies, Inc.
7018 1393 7123 974 AT&T
3908 925 1573 492 Supernet, Inc.
1239 909 3039 653 Sprint
18566 675 160 8 Covad Communications
189 650 450 341 Genuity
4323 633 552 181 Time Warner Communications, I
6197 615 397 271 BellSouth Network Solutions,
7843 555 430 167 Adelphia Corp.
852 515 1123 410 Telus Advanced Communications
209 510 2129 294 Qwest
3356 498 10676 413 Level 3 Communications, LLC
6198 498 279 198 BellSouth Network Solutions,
7066 492 205 263 Virginia Polytechnic Institut
20115 483 203 292 Charter Communications
1 461 1054 297 GENUITY
705 417 185 254 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 393 340 111 EarthLink, Inc.
10753 390 80 195 XCOM Technologies, INC.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 717 2121 595 UUNET - Commercial IP service
3301 296 1168 283 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 205 736 116 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 182 175 133 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 Romania Data Systems S.A.
3303 145 540 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 125 376 123 Song Networks
3269 117 821 64 TELECOM ITALIA
2856 113 1295 104 BTnet UK Regional network
3352 104 824 34 Ibernet, Internet Access Netw
25186 93 127 66 France Telecom Transpac's Tra
2647 90 4129 44 SITA
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 228 350 118 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 133 205 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
11992 89 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
11830 73 21 27 Instituto Costarricense de El
1916 72 305 42 Fundacao de Amparo a Pesquisa
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 925 433 Supernet, Inc.
7018 1393 419 AT&T
7843 555 388 Adelphia Corp.
6197 615 344 BellSouth Network Solutions,
4755 405 332 Videsh Sanchar Nigam Ltd. Aut
189 650 309 Genuity
6198 498 300 BellSouth Network Solutions,
27364 317 294 Armstrong Cable Services
1221 982 287 Telstra Pty Ltd
4355 393 282 EarthLink, Inc.
22909 294 275 Comcast Cable Corporation
6347 350 270 SAVVIS Communications Corpora
1239 909 256 Sprint
376 358 243 Reseau Interordinateurs Scien
25844 241 239 Skadden, Arps, Slate, Meagher
17676 256 236 XTAGE CORPORATION
22773 256 232 Cox Communications, Inc. Atla
7066 492 229 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
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
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 /16:7431 /17:1751 /18:3101
/19:8406 /20:8734 /21:6394 /22:9384 /23:10915 /24:70196
/25:166 /26:204 /27:144 /28:26 /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
3908 585 925 Supernet, Inc.
189 565 650 Genuity
7018 496 1393 AT&T
6197 479 615 BellSouth Network Solutions,
701 442 1481 UUNET Technologies, Inc.
702 433 717 UUNET - Commercial IP service
7066 388 492 Virginia Polytechnic Institut
6198 387 498 BellSouth Network Solutions,
10753 376 390 XCOM Technologies, INC.
690 371 411 Merit Network
20115 328 483 Charter Communications
1239 317 909 Sprint
27364 311 317 Armstrong Cable Services
7843 262 555 Adelphia Corp.
25844 241 241 Skadden, Arps, Slate, Meagher
3356 229 498 Level 3 Communications, LLC
4355 212 393 EarthLink, Inc.
3320 208 269 Deutsche Telekom AG
209 205 510 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:713 13:1 15:4 16:1 17:3
20:6 24:840 25:1 32:85 38:45 40:23
44:2 55:1 57:15 61:271 62:398 63:1869
64:1786 65:2019 66:2723 67:271 68:388 69:261
80:411 81:120 82:16 128:146 129:169 130:62
131:84 132:14 134:168 135:7 136:188 137:116
138:125 139:48 140:154 141:134 142:101 143:44
144:80 145:13 146:275 147:62 148:300 149:78
150:121 151:69 152:218 153:57 154:4 155:126
156:58 157:50 158:128 159:134 160:46 161:76
162:359 163:77 164:314 165:145 166:97 167:313
168:179 169:96 170:326 171:9 192:5401 193:2475
194:1977 195:1132 196:464 198:3616 199:2761 200:3017
202:3928 203:5264 204:3000 205:2042 206:2336 207:2490
208:2560 209:2721 210:904 211:358 212:954 213:911
214:16 215:22 216:3233 217:714 218:105 219:36
220:103 221:11
End of report
