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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127950
Prefixes after maximum aggregation: 80127
Unique aggregates announced to Internet: 61724
Total ASes present in the Internet Routing Table: 15840
Origin-only ASes present in the Internet Routing Table: 13733
Origin ASes announcing only one prefix: 6246
Transit ASes present in the Internet Routing Table: 2107
Transit-only ASes present in the Internet Routing Table: 76
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: 1226159012
Equivalent to 73 /8s, 21 /16s and 179 /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: 56971
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22495
Total APNIC prefixes after maximum aggregation: 12720
Prefixes being announced from the APNIC address blocks: 20888
Unique aggregates announced from the APNIC address blocks: 12325
APNIC Region origin ASes present in the Internet Routing Table: 1895
APNIC Region origin ASes announcing only one prefix: 541
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: 16
Number of APNIC addresses announced to Internet: 122064768
Equivalent to 7 /8s, 70 /16s and 143 /24s
Percentage of available APNIC address space announced: 65.8
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: 77409
Total ARIN prefixes after maximum aggregation: 48602
Prefixes being announced from the ARIN address blocks: 55335
Unique aggregates announced from the ARIN address blocks: 17513
ARIN Region origin ASes present in the Internet Routing Table: 8668
ARIN Region origin ASes announcing only one prefix: 2986
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 197250848
Equivalent to 11 /8s, 193 /16s and 207 /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: 22612
Total RIPE prefixes after maximum aggregation: 16511
Prefixes being announced from the RIPE address blocks: 19144
Unique aggregates announced from the RIPE address blocks: 12870
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: 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: 136413760
Equivalent to 8 /8s, 33 /16s and 130 /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: 5432
Total LACNIC prefixes after maximum aggregation: 2294
Prefixes being announced from the LACNIC address blocks: 4865
Unique aggregates announced from the LACNIC address blocks: 3155
LACNIC Region origin ASes present in the Internet Routing Table: 344
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: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13287680
Equivalent to 0 /8s, 202 /16s and 193 /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 973 1108 691 Telstra Pty Ltd
4755 412 135 75 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 337 371 266 UUNET
4134 329 2228 108 Data Communications Bureau
2764 291 322 259 connect.com.au pty ltd
17557 288 21 135 Pakistan Telecom
7474 270 306 210 Optus Communications Pty Ltd
17676 262 3978 25 XTAGE CORPORATION
9583 249 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
9498 187 20 16 BHARTI BT INTERNET LTD.
9443 185 58 82 Primus Telecommunications
9929 179 160 36 China Netcom Corp.
9942 176 69 106 COMindico Australia
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 1467 8736 1022 UUNET Technologies, Inc.
7018 1400 7140 977 AT&T
3908 920 1574 492 Supernet, Inc.
1239 906 3038 652 Sprint
18566 687 176 8 Covad Communications
4323 662 571 189 Time Warner Communications, I
189 620 432 355 Genuity
6197 612 396 268 BellSouth Network Solutions,
3356 527 10676 444 Level 3 Communications, LLC
7843 519 443 136 Adelphia Corp.
852 515 1123 409 Telus Advanced Communications
209 506 2129 291 Qwest
6198 493 329 191 BellSouth Network Solutions,
7066 471 205 262 Virginia Polytechnic Institut
20115 470 202 293 Charter Communications
1 445 1051 281 GENUITY
10753 422 87 207 XCOM Technologies, INC.
705 416 185 253 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 394 336 110 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 711 2121 592 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 270 1989 230 Deutsche Telekom AG
8220 265 436 253 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 374 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
3215 185 737 107 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
25186 114 128 73 France Telecom Transpac's Tra
2856 112 1293 103 BTnet UK Regional network
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 103 105 ImpSat
8151 232 350 121 UniNet S.A. de C.V.
7303 230 40 61 Telecom Argentina Stet-France
11172 188 79 44 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 89 8 36 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
4270 68 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
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 687 679 Covad Communications
4323 662 473 Time Warner Communications, I
3908 920 428 Supernet, Inc.
7018 1400 423 AT&T
7843 519 383 Adelphia Corp.
6197 612 344 BellSouth Network Solutions,
4755 412 337 Videsh Sanchar Nigam Ltd. Aut
6198 493 302 BellSouth Network Solutions,
27364 319 296 Armstrong Cable Services
4355 394 284 EarthLink, Inc.
1221 973 282 Telstra Pty Ltd
22909 297 277 Comcast Cable Corporation
6347 354 273 SAVVIS Communications Corpora
189 620 265 Genuity
1239 906 254 Sprint
376 361 246 Reseau Interordinateurs Scien
22773 267 241 Cox Communications, Inc. Atla
25844 242 240 Skadden, Arps, Slate, Meagher
6140 343 238 ImpSat
17676 262 237 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 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:265 /15:474 /16:7430 /17:1753 /18:3122
/19:8446 /20:8802 /21:6439 /22:9436 /23:10928 /24:70032
/25:163 /26:209 /27:150 /28:27 /29:9 /30:51
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 681 687 Covad Communications
3908 581 920 Supernet, Inc.
189 536 620 Genuity
7018 502 1400 AT&T
6197 477 612 BellSouth Network Solutions,
701 438 1467 UUNET Technologies, Inc.
702 426 711 UUNET - Commercial IP service
10753 390 422 XCOM Technologies, INC.
6198 379 493 BellSouth Network Solutions,
690 371 411 Merit Network
7066 367 471 Virginia Polytechnic Institut
1239 316 906 Sprint
20115 316 470 Charter Communications
27364 313 319 Armstrong Cable Services
3356 258 527 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 215 519 Adelphia Corp.
4355 213 394 EarthLink, Inc.
3320 209 270 Deutsche Telekom AG
209 203 506 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:717 13:1 15:4 16:1 17:3
20:6 24:831 25:1 32:84 38:47 40:23
44:2 55:1 57:14 61:311 62:512 63:1868
64:1772 65:1964 66:2658 67:287 68:360 69:248
80:418 81:132 82:16 128:139 129:168 130:62
131:84 132:16 134:169 135:7 136:188 137:114
138:126 139:49 140:163 141:138 142:100 143:44
144:84 145:13 146:275 147:63 148:300 149:80
150:121 151:68 152:218 153:58 154:5 155:127
156:58 157:53 158:135 159:139 160:45 161:69
162:361 163:76 164:298 165:154 166:97 167:304
168:178 169:96 170:325 171:9 192:5297 193:2473
194:1982 195:1145 196:464 198:3576 199:2735 200:2982
202:3963 203:5253 204:2981 205:2031 206:2323 207:2494
208:2573 209:2698 210:906 211:362 212:947 213:922
214:16 215:20 216:3246 217:715 218:106 219:36
220:115 221:11 222:1
End of report
