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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 16 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127930
Prefixes after maximum aggregation: 80148
Unique aggregates announced to Internet: 61876
Total ASes present in the Internet Routing Table: 15823
Origin-only ASes present in the Internet Routing Table: 13720
Origin ASes announcing only one prefix: 6234
Transit ASes present in the Internet Routing Table: 2103
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: 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: 1243240480
Equivalent to 74 /8s, 26 /16s and 88 /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: 56880
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22477
Total APNIC prefixes after maximum aggregation: 12743
Prefixes being announced from the APNIC address blocks: 20872
Unique aggregates announced from the APNIC address blocks: 12520
APNIC Region origin ASes present in the Internet Routing Table: 1899
APNIC Region origin ASes announcing only one prefix: 544
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: 15
Number of APNIC addresses announced to Internet: 121850112
Equivalent to 7 /8s, 67 /16s and 73 /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: 77461
Total ARIN prefixes after maximum aggregation: 48620
Prefixes being announced from the ARIN address blocks: 55294
Unique aggregates announced from the ARIN address blocks: 17465
ARIN Region origin ASes present in the Internet Routing Table: 8660
ARIN Region origin ASes announcing only one prefix: 2982
ARIN Region transit ASes present in the Internet Routing Table: 838
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 197046560
Equivalent to 11 /8s, 190 /16s and 177 /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: 22532
Total RIPE prefixes after maximum aggregation: 16489
Prefixes being announced from the RIPE address blocks: 19054
Unique aggregates announced from the RIPE address blocks: 12815
RIPE Region origin ASes present in the Internet Routing Table: 4845
RIPE Region origin ASes announcing only one prefix: 2612
RIPE Region transit ASes present in the Internet Routing Table: 859
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136002624
Equivalent to 8 /8s, 27 /16s and 60 /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: 5458
Total LACNIC prefixes after maximum aggregation: 2296
Prefixes being announced from the LACNIC address blocks: 4891
Unique aggregates announced from the LACNIC address blocks: 3139
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: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13269760
Equivalent to 0 /8s, 202 /16s and 123 /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 977 1109 695 Telstra Pty Ltd
4755 410 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 349 SINET Japan
703 337 371 266 UUNET
4134 331 2228 108 Data Communications Bureau
17557 305 22 139 Pakistan Telecom
2764 288 322 257 connect.com.au pty ltd
7474 267 290 208 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 180 16 33 BHARTI BT INTERNET LTD.
9929 173 160 36 China Netcom Corp.
4538 172 1554 21 China Education and Research
9942 168 69 104 COMindico Australia
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 1464 8769 1030 UUNET Technologies, Inc.
7018 1394 7139 977 AT&T
3908 920 1573 489 Supernet, Inc.
1239 906 3036 651 Sprint
18566 679 176 8 Covad Communications
4323 636 553 183 Time Warner Communications, I
189 627 448 349 Genuity
6197 612 396 268 BellSouth Network Solutions,
7843 524 441 136 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
3356 514 10676 430 Level 3 Communications, LLC
209 508 2129 293 Qwest
6198 492 329 192 BellSouth Network Solutions,
7066 492 205 263 Virginia Polytechnic Institut
20115 481 203 293 Charter Communications
1 450 1038 286 GENUITY
705 417 185 254 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 393 336 110 EarthLink, Inc.
10753 390 80 195 XCOM Technologies, INC.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 710 2121 589 UUNET - Commercial IP service
3301 296 1168 283 TeliaNet Sweden
3320 271 1989 231 Deutsche Telekom AG
8220 266 434 245 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 229 374 184 SWIPnet Swedish IP Network
3215 201 738 113 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
5400 183 174 133 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 Romania Data Systems S.A.
3303 143 540 138 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
3352 98 824 34 Ibernet, Internet Access Netw
25186 98 127 71 France Telecom Transpac's Tra
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 335 103 106 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
11992 90 9 37 Integrated Systems
6147 89 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 73 21 27 Instituto Costarricense de El
1916 71 305 42 Fundacao de Amparo a Pesquisa
4270 68 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 679 671 Covad Communications
4323 636 453 Time Warner Communications, I
3908 920 431 Supernet, Inc.
7018 1394 417 AT&T
7843 524 388 Adelphia Corp.
6197 612 344 BellSouth Network Solutions,
4755 410 337 Videsh Sanchar Nigam Ltd. Aut
6198 492 300 BellSouth Network Solutions,
27364 318 295 Armstrong Cable Services
4355 393 283 EarthLink, Inc.
1221 977 282 Telstra Pty Ltd
189 627 278 Genuity
22909 295 276 Comcast Cable Corporation
6347 356 275 SAVVIS Communications Corpora
1239 906 255 Sprint
376 359 244 Reseau Interordinateurs Scien
25844 242 240 Skadden, Arps, Slate, Meagher
22773 262 237 Cox Communications, Inc. Atla
17676 261 236 XTAGE CORPORATION
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
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 /16:7439 /17:1747 /18:3118
/19:8424 /20:8766 /21:6418 /22:9432 /23:10933 /24:70100
/25:162 /26:206 /27:144 /28:28 /29:9 /30:49
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 672 679 Covad Communications
3908 581 920 Supernet, Inc.
189 542 627 Genuity
7018 495 1394 AT&T
6197 477 612 BellSouth Network Solutions,
701 428 1464 UUNET Technologies, Inc.
702 426 710 UUNET - Commercial IP service
7066 388 492 Virginia Polytechnic Institut
6198 378 492 BellSouth Network Solutions,
10753 376 390 XCOM Technologies, INC.
690 371 411 Merit Network
20115 326 481 Charter Communications
1239 315 906 Sprint
27364 312 318 Armstrong Cable Services
3356 250 514 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 219 524 Adelphia Corp.
4355 212 393 EarthLink, Inc.
3320 210 271 Deutsche Telekom AG
209 204 508 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:712 13:1 15:4 16:1 17:3
20:6 24:811 25:1 32:84 38:46 40:23
44:2 55:1 57:14 61:309 62:464 63:1862
64:1782 65:1973 66:2662 67:281 68:371 69:246
80:419 81:128 82:16 128:152 129:168 130:62
131:84 132:15 134:169 135:7 136:188 137:113
138:126 139:47 140:164 141:134 142:100 143:44
144:86 145:13 146:275 147:63 148:300 149:79
150:121 151:69 152:218 153:58 154:5 155:127
156:58 157:53 158:135 159:139 160:45 161:69
162:360 163:78 164:317 165:156 166:97 167:305
168:179 169:95 170:328 171:9 192:5320 193:2469
194:1978 195:1142 196:465 198:3596 199:2750 200:3012
202:3940 203:5277 204:2992 205:2043 206:2326 207:2481
208:2564 209:2706 210:905 211:361 212:954 213:926
214:16 215:22 216:3237 217:723 218:105 219:37
220:108 221:11
End of report
