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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 17 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128018
Prefixes after maximum aggregation: 80206
Unique aggregates announced to Internet: 61918
Total ASes present in the Internet Routing Table: 15843
Origin-only ASes present in the Internet Routing Table: 13737
Origin ASes announcing only one prefix: 6245
Transit ASes present in the Internet Routing Table: 2106
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 27
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: 1243088928
Equivalent to 74 /8s, 24 /16s and 8 /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: 56921
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22494
Total APNIC prefixes after maximum aggregation: 12750
Prefixes being announced from the APNIC address blocks: 20885
Unique aggregates announced from the APNIC address blocks: 12545
APNIC Region origin ASes present in the Internet Routing Table: 1899
APNIC Region origin ASes announcing only one prefix: 542
APNIC Region transit ASes present in the Internet Routing Table: 311
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 121940992
Equivalent to 7 /8s, 68 /16s and 172 /24s
Percentage of available APNIC address space announced: 65.7
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: 77505
Total ARIN prefixes after maximum aggregation: 48670
Prefixes being announced from the ARIN address blocks: 55374
Unique aggregates announced from the ARIN address blocks: 17489
ARIN Region origin ASes present in the Internet Routing Table: 8668
ARIN Region origin ASes announcing only one prefix: 2984
ARIN Region transit ASes present in the Internet Routing Table: 834
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 197115680
Equivalent to 11 /8s, 191 /16s and 191 /24s
Percentage of available ARIN address space announced: 73.4
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: 22549
Total RIPE prefixes after maximum aggregation: 16490
Prefixes being announced from the RIPE address blocks: 19086
Unique aggregates announced from the RIPE address blocks: 12825
RIPE Region origin ASes present in the Internet Routing Table: 4857
RIPE Region origin ASes announcing only one prefix: 2623
RIPE Region transit ASes present in the Internet Routing Table: 862
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136021824
Equivalent to 8 /8s, 27 /16s and 135 /24s
Percentage of available RIPE address space announced: 73.7
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: 5468
Total LACNIC prefixes after maximum aggregation: 2296
Prefixes being announced from the LACNIC address blocks: 4895
Unique aggregates announced from the LACNIC address blocks: 3143
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 96
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: 13270528
Equivalent to 0 /8s, 202 /16s and 126 /24s
Percentage of available LACNIC address space announced: 39.5
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 979 1109 696 Telstra Pty Ltd
4755 408 135 72 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 337 371 266 UUNET
4134 329 2228 108 Data Communications Bureau
17557 307 22 137 Pakistan Telecom
2764 288 322 257 connect.com.au pty ltd
7474 269 306 210 Optus Communications Pty Ltd
17676 261 3962 25 XTAGE CORPORATION
9583 251 38 23 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 237 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9443 185 58 82 Primus Telecommunications
9498 184 16 27 BHARTI BT INTERNET LTD.
9942 174 69 104 COMindico Australia
9929 173 160 36 China Netcom Corp.
4538 172 1554 21 China Education and Research
17642 155 40 116 RequestDSL BGP AS# for Sydney
4837 140 1058 88 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1468 8736 1023 UUNET Technologies, Inc.
7018 1404 7124 979 AT&T
3908 919 1573 489 Supernet, Inc.
1239 907 3037 653 Sprint
18566 686 176 8 Covad Communications
4323 640 553 186 Time Warner Communications, I
189 618 432 353 Genuity
6197 612 396 268 BellSouth Network Solutions,
3356 525 10677 440 Level 3 Communications, LLC
7843 520 443 136 Adelphia Corp.
852 515 1123 410 Telus Advanced Communications
209 507 2129 291 Qwest
6198 495 329 192 BellSouth Network Solutions,
7066 491 205 262 Virginia Polytechnic Institut
20115 470 202 293 Charter Communications
1 450 1038 286 GENUITY
10753 422 87 207 XCOM Technologies, INC.
705 417 185 254 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 393 336 110 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 709 2121 588 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 269 1989 229 Deutsche Telekom AG
8220 266 434 245 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 374 183 SWIPnet Swedish IP Network
3215 200 738 112 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
5400 182 174 133 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 117 821 64 TELECOM ITALIA
2856 112 1293 103 BTnet UK Regional network
25186 99 127 72 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 103 105 ImpSat
7303 241 40 59 Telecom Argentina Stet-France
8151 232 350 121 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 132 205 93 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
6147 89 70 19 Telefonica Del Peru
11992 87 8 37 Integrated Systems
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
1916 71 305 42 Fundacao de Amparo a Pesquisa
4270 67 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 59 12 40 Global One Colombia
13999 58 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 686 678 Covad Communications
4323 640 454 Time Warner Communications, I
3908 919 430 Supernet, Inc.
7018 1404 425 AT&T
7843 520 384 Adelphia Corp.
6197 612 344 BellSouth Network Solutions,
4755 408 336 Videsh Sanchar Nigam Ltd. Aut
6198 495 303 BellSouth Network Solutions,
27364 318 295 Armstrong Cable Services
1221 979 283 Telstra Pty Ltd
4355 393 283 EarthLink, Inc.
22909 295 276 Comcast Cable Corporation
6347 354 273 SAVVIS Communications Corpora
189 618 265 Genuity
1239 907 254 Sprint
376 361 246 Reseau Interordinateurs Scien
25844 242 240 Skadden, Arps, Slate, Meagher
6140 343 238 ImpSat
22773 263 237 Cox Communications, Inc. Atla
17676 261 236 XTAGE CORPORATION
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 /8:19 /9:4 /10:6 /11:12 /12:55
/13:98 /14:265 /15:474 /16:7437 /17:1750 /18:3120
/19:8427 /20:8762 /21:6405 /22:9449 /23:10957 /24:70163
/25:160 /26:205 /27:143 /28:27 /29:9 /30:49
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 680 686 Covad Communications
3908 580 919 Supernet, Inc.
189 534 618 Genuity
7018 507 1404 AT&T
6197 477 612 BellSouth Network Solutions,
701 438 1468 UUNET Technologies, Inc.
702 426 709 UUNET - Commercial IP service
10753 390 422 XCOM Technologies, INC.
7066 387 491 Virginia Polytechnic Institut
6198 381 495 BellSouth Network Solutions,
690 371 411 Merit Network
20115 316 470 Charter Communications
1239 314 907 Sprint
27364 312 318 Armstrong Cable Services
3356 261 525 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 216 520 Adelphia Corp.
4355 212 393 EarthLink, Inc.
3320 208 269 Deutsche Telekom AG
209 204 507 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:715 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 61:309 62:472 63:1862
64:1792 65:1971 66:2668 67:280 68:360 69:246
80:421 81:128 82:16 128:155 129:168 130:62
131:84 132:17 134:169 135:7 136:188 137:113
138:125 139:47 140:164 141:136 142:100 143:44
144:85 145:13 146:269 147:63 148:273 149:79
150:121 151:69 152:218 153:58 154:5 155:127
156:58 157:53 158:133 159:139 160:45 161:69
162:361 163:76 164:317 165:156 166:97 167:304
168:180 169:96 170:327 171:9 192:5316 193:2475
194:1982 195:1142 196:463 198:3595 199:2750 200:3016
202:3944 203:5286 204:2993 205:2041 206:2333 207:2487
208:2574 209:2707 210:905 211:361 212:953 213:933
214:16 215:22 216:3240 217:726 218:107 219:36
220:109 221:11
End of report
