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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Wed 16 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115651
Prefixes after maximum aggregation: 74546
Unique aggregates announced to Internet: 54760
Total ASes present in the Internet Routing Table: 13914
Origin-only ASes present in the Internet Routing Table: 12051
Origin ASes announcing only one prefix: 5400
Transit ASes present in the Internet Routing Table: 1863
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1197004936
Equivalent to 71 /8s, 88 /16s and 216 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48050
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18875
Total APNIC prefixes after maximum aggregation: 11421
Prefixes being announced from the APNIC address blocks: 17385
Unique aggregates announced from the APNIC address blocks: 11036
APNIC Region origin ASes present in the Internet Routing Table: 1621
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 98654624
Equivalent to 5 /8s, 225 /16s and 89 /24s
Percentage of available APNIC address space announced: 64.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72315
Total ARIN prefixes after maximum aggregation: 46125
Prefixes being announced from the ARIN address blocks: 50634
Unique aggregates announced from the ARIN address blocks: 15345
ARIN Region origin ASes present in the Internet Routing Table: 7828
ARIN Region origin ASes announcing only one prefix: 2588
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181476448
Equivalent to 10 /8s, 209 /16s and 28 /24s
Percentage of available ARIN address space announced: 67.6
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
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: 19786
Total RIPE prefixes after maximum aggregation: 14951
Prefixes being announced from the RIPE address blocks: 16457
Unique aggregates announced from the RIPE address blocks: 10206
RIPE Region origin ASes present in the Internet Routing Table: 4093
RIPE Region origin ASes announcing only one prefix: 2210
RIPE Region transit ASes present in the Internet Routing Table: 755
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 119680896
Equivalent to 7 /8s, 34 /16s and 47 /24s
Percentage of available RIPE address space announced: 79.3
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4675
Total LACNIC prefixes after maximum aggregation: 2049
Prefixes being announced from the LACNIC address blocks: 4113
Unique aggregates announced from the LACNIC address blocks: 2639
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 11468288
Equivalent to 0 /8s, 174 /16s and 254 /24s
Percentage of available LACNIC address space announced: 68.4
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1193 1187 873 Telstra Pty Ltd
703 395 368 311 UUNET
2907 352 1768 331 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 303 275 206 Optus Communications Pty Ltd
17557 301 22 119 Pakistan Telecom
4134 297 2286 97 Data Communications Bureau
4755 267 139 75 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 229 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 185 57 72 Primus Telecommunications
9583 161 32 5 Satyam Infoway Ltd.,
4515 135 102 76 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 128 736 122 TTnet
7657 127 23 84 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1793 9199 1278 UUNET Technologies, Inc.
7018 1354 7184 942 AT&T
3908 1064 1651 505 Supernet, Inc.
1239 874 3186 656 Sprint
7843 743 372 305 Adelphia Corp.
852 735 1145 455 Telus Advanced Communications
1 658 8042 434 GENUITY
7132 595 673 68 Southwestern Bell Internet Se
7046 580 878 299 UUNET Technologies, Inc.
209 572 2064 335 Qwest
4323 518 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
705 445 135 206 UUNET Technologies, Inc.
2548 427 1117 267 Business Internet, Inc.
3549 404 725 290 Global Crossing
6197 397 601 40 BellSouth Network Solutions,
6198 396 180 195 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 365 2020 358 Verio, Inc.
15290 360 230 177 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 875 2407 729 UUNET - Commercial IP service
3301 383 1164 333 TeliaNet Sweden
3215 296 677 172 France Telecom Transpac
3320 256 1966 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 212 783 176 Sonera Solution Autonomous Sy
1257 207 446 203 SWIPnet Swedish IP Network
5400 205 83 97 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 162 790 137 BTnet UK Regional network
8708 155 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 122 373 115 Song Networks
8220 112 168 104 COLT Internet - International
5511 110 192 88 France Telecom
3269 106 690 64 TELECOM ITALIA
3233 105 10 8 RNC - Romanian Natioanal R&D
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 205 346 111 UniNet S.A. de C.V.
7303 174 27 49 Telecom Argentina Stet-France
11172 169 88 34 Servicios Alestra S.A de C.V
6140 153 78 44 ImpSat USA, Inc.
6503 149 174 107 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 105 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11340 80 2 25 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
11992 71 7 29 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
15034 64 5 33 TIBA SA
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
7984 62 27 42 Global One Colombia
8065 60 6 16 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
6535 55 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1064 559 Supernet, Inc.
7132 595 527 Southwestern Bell Internet Se
7843 743 438 Adelphia Corp.
7018 1354 412 AT&T
6197 397 357 BellSouth Network Solutions,
4323 518 354 Time Warner Communications, I
1221 1193 320 Telstra Pty Ltd
18566 309 305 Covad Communications
1580 317 304 ANOSCEUR
7046 580 281 UUNET Technologies, Inc.
852 735 280 Telus Advanced Communications
4355 385 276 EarthLink, Inc.
4151 292 276 USDA
6347 347 272 SAVVIS Communications Corpora
705 445 239 UUNET Technologies, Inc.
209 572 237 Qwest
376 342 232 Reseau Interordinateurs Scien
1 658 224 GENUITY
1239 874 218 Sprint
4814 229 214 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:7 /11:12 /12:46
/13:90 /14:241 /15:429 /16:7276 /17:1513 /18:2731
/19:7886 /20:7537 /21:5332 /22:8156 /23:9949 /24:63642
/25:177 /26:220 /27:115 /28:76 /29:53 /30:94
/31:1 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 633 1064 Supernet, Inc.
7843 555 743 Adelphia Corp.
702 540 875 UUNET - Commercial IP service
701 492 1793 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 435 1354 AT&T
6198 312 396 BellSouth Network Solutions,
1580 303 317 ANOSCEUR
18566 303 309 Covad Communications
6197 281 397 BellSouth Network Solutions,
7046 267 580 UUNET Technologies, Inc.
1239 260 874 Sprint
209 255 572 Qwest
3301 228 383 TeliaNet Sweden
3215 227 296 France Telecom Transpac
11492 220 225 Cable One
4355 218 385 EarthLink, Inc.
7066 205 307 Virginia Polytechnic Institut
3320 187 256 Deutsche Telekom AG
5400 185 205 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:560 13:10 15:4 17:7 20:4
24:859 25:1 32:42 38:26 40:9 44:1
55:1 57:14 61:348 62:245 63:1889 64:1287
65:1588 66:1193 67:113 68:159 69:8 80:305
81:62 128:126 129:126 130:19 131:62 132:9
133:2 134:128 135:7 136:473 137:106 138:203
139:71 140:169 141:65 142:69 143:49 144:150
145:18 146:241 147:224 148:247 149:77 150:41
151:73 152:295 153:38 154:8 155:104 156:102
157:106 158:74 159:141 160:20 161:75 162:123
163:85 164:85 165:127 166:105 167:288 168:300
169:62 170:199 171:6 192:5388 193:2388 194:2023
195:820 196:435 198:3634 199:3080 200:2523 202:3473
203:4814 204:3054 205:2108 206:2382 207:2506 208:2574
209:2561 210:596 211:276 212:892 213:772 214:9
215:19 216:2923 217:504 218:49 219:2
End of report
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