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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 Thu 17 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115972
Prefixes after maximum aggregation: 74567
Unique aggregates announced to Internet: 54796
Total ASes present in the Internet Routing Table: 13913
Origin-only ASes present in the Internet Routing Table: 12055
Origin ASes announcing only one prefix: 5392
Transit ASes present in the Internet Routing Table: 1858
Transit-only ASes present in the Internet Routing Table: 57
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
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: 1197762184
Equivalent to 71 /8s, 100 /16s and 102 /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: 48115
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18931
Total APNIC prefixes after maximum aggregation: 11424
Prefixes being announced from the APNIC address blocks: 17447
Unique aggregates announced from the APNIC address blocks: 11049
APNIC Region origin ASes present in the Internet Routing Table: 1618
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 99329696
Equivalent to 5 /8s, 235 /16s and 166 /24s
Percentage of available APNIC address space announced: 65.3
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: 72496
Total ARIN prefixes after maximum aggregation: 46166
Prefixes being announced from the ARIN address blocks: 50892
Unique aggregates announced from the ARIN address blocks: 15360
ARIN Region origin ASes present in the Internet Routing Table: 7826
ARIN Region origin ASes announcing only one prefix: 2582
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: 181484640
Equivalent to 10 /8s, 209 /16s and 60 /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: 19765
Total RIPE prefixes after maximum aggregation: 14909
Prefixes being announced from the RIPE address blocks: 16444
Unique aggregates announced from the RIPE address blocks: 10236
RIPE Region origin ASes present in the Internet Routing Table: 4095
RIPE Region origin ASes announcing only one prefix: 2214
RIPE Region transit ASes present in the Internet Routing Table: 752
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 119717248
Equivalent to 7 /8s, 34 /16s and 189 /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: 4780
Total LACNIC prefixes after maximum aggregation: 2068
Prefixes being announced from the LACNIC address blocks: 4116
Unique aggregates announced from the LACNIC address blocks: 2622
LACNIC Region origin ASes present in the Internet Routing Table: 317
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11463936
Equivalent to 0 /8s, 174 /16s and 237 /24s
Percentage of available LACNIC address space announced: 68.3
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 1196 1188 875 Telstra Pty Ltd
703 395 368 311 UUNET
2907 350 1751 330 SINET Japan
2764 338 356 310 connect.com.au pty ltd
7474 304 275 207 Optus Communications Pty Ltd
17557 302 22 120 Pakistan Telecom
4134 297 2286 97 Data Communications Bureau
4755 273 139 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 163 32 5 Satyam Infoway Ltd.,
4515 135 102 76 Star Internet Services Ltd.
9768 133 383 72 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 1792 9191 1276 UUNET Technologies, Inc.
7018 1354 7184 942 AT&T
3908 1069 1651 507 Supernet, Inc.
1239 877 3187 658 Sprint
7843 744 372 305 Adelphia Corp.
852 736 1145 456 Telus Advanced Communications
1 658 8042 432 GENUITY
7132 591 673 68 Southwestern Bell Internet Se
7046 581 878 300 UUNET Technologies, Inc.
209 570 2063 333 Qwest
690 517 75 324 Merit Network
4323 504 439 161 Time Warner Communications, I
705 444 135 209 UUNET Technologies, Inc.
2548 427 1117 267 Business Internet, Inc.
3549 405 725 291 Global Crossing
6197 397 601 40 BellSouth Network Solutions,
6198 395 180 195 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 365 2020 358 Verio, Inc.
15290 359 230 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 874 2406 728 UUNET - Commercial IP service
3301 383 1164 333 TeliaNet Sweden
3215 303 772 169 France Telecom Transpac
3320 244 1966 221 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 212 783 176 Sonera Solution Autonomous Sy
1257 205 414 201 SWIPnet Swedish IP Network
5400 204 83 97 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 168 790 130 BTnet UK Regional network
8708 155 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
3246 122 373 115 Song Networks
12302 122 17 29 MobiFon S.A.
8220 113 168 104 COLT Internet - International
5511 110 192 88 France Telecom
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 247 114 58 ImpSat USA, Inc.
8151 203 330 111 UniNet S.A. de C.V.
7303 177 27 51 Telecom Argentina Stet-France
11172 168 72 33 Servicios Alestra S.A de C.V
6503 152 190 107 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 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
11992 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
15034 65 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 1069 562 Supernet, Inc.
7132 591 523 Southwestern Bell Internet Se
7843 744 439 Adelphia Corp.
7018 1354 412 AT&T
6197 397 357 BellSouth Network Solutions,
4323 504 343 Time Warner Communications, I
1221 1196 321 Telstra Pty Ltd
18566 312 308 Covad Communications
1580 317 304 ANOSCEUR
7046 581 281 UUNET Technologies, Inc.
852 736 280 Telus Advanced Communications
4355 385 276 EarthLink, Inc.
4151 292 276 USDA
6347 347 272 SAVVIS Communications Corpora
209 570 237 Qwest
705 444 235 UUNET Technologies, Inc.
376 342 232 Reseau Interordinateurs Scien
1 658 226 GENUITY
1239 877 219 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 /15:430 /16:7287 /17:1506 /18:2735
/19:7884 /20:7538 /21:5324 /22:8177 /23:9958 /24:63928
/25:177 /26:220 /27:116 /28:75 /29:54 /30:95
/31:1 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 635 1069 Supernet, Inc.
7843 556 744 Adelphia Corp.
702 539 874 UUNET - Commercial IP service
701 492 1792 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 435 1354 AT&T
6198 311 395 BellSouth Network Solutions,
18566 306 312 Covad Communications
1580 303 317 ANOSCEUR
6197 281 397 BellSouth Network Solutions,
7046 267 581 UUNET Technologies, Inc.
1239 261 877 Sprint
209 255 570 Qwest
3215 229 303 France Telecom Transpac
3301 228 383 TeliaNet Sweden
11492 220 225 Cable One
4355 218 385 EarthLink, Inc.
7066 205 307 Virginia Polytechnic Institut
3320 186 244 Deutsche Telekom AG
5400 184 204 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:562 13:10 15:4 17:7 20:4
24:859 25:1 32:42 38:27 40:9 44:1
52:1 55:1 57:14 61:354 62:246 63:1889
64:1285 65:1595 66:1198 67:112 68:160 69:9
80:306 81:63 128:127 129:116 130:19 131:62
132:9 133:2 134:131 135:7 136:515 137:106
138:203 139:71 140:169 141:66 142:69 143:49
144:147 145:18 146:232 147:224 148:248 149:78
150:41 151:72 152:295 153:38 154:8 155:104
156:103 157:106 158:74 159:139 160:20 161:75
162:123 163:85 164:79 165:127 166:105 167:288
168:305 169:62 170:199 171:6 192:5390 193:2383
194:2021 195:820 196:433 198:3620 199:3083 200:2523
202:3488 203:4815 204:3292 205:2112 206:2384 207:2482
208:2570 209:2562 210:599 211:277 212:886 213:782
214:9 215:19 216:2939 217:503 218:49 219:2
End of report
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