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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 14 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117630
Prefixes after maximum aggregation: 75243
Unique aggregates announced to Internet: 55705
Total ASes present in the Internet Routing Table: 14076
Origin-only ASes present in the Internet Routing Table: 12192
Origin ASes announcing only one prefix: 5494
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 4
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: 1186197373
Equivalent to 70 /8s, 179 /16s and 239 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 49661
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19196
Total APNIC prefixes after maximum aggregation: 11459
Prefixes being announced from the APNIC address blocks: 17717
Unique aggregates announced from the APNIC address blocks: 11169
APNIC Region origin ASes present in the Internet Routing Table: 1644
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 100217280
Equivalent to 5 /8s, 249 /16s and 49 /24s
Percentage of available APNIC address space announced: 65.9
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: 73528
Total ARIN prefixes after maximum aggregation: 46665
Prefixes being announced from the ARIN address blocks: 51420
Unique aggregates announced from the ARIN address blocks: 15708
ARIN Region origin ASes present in the Internet Routing Table: 7905
ARIN Region origin ASes announcing only one prefix: 2643
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182774240
Equivalent to 10 /8s, 228 /16s and 233 /24s
Percentage of available ARIN address space announced: 68.1
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: 20035
Total RIPE prefixes after maximum aggregation: 15006
Prefixes being announced from the RIPE address blocks: 16700
Unique aggregates announced from the RIPE address blocks: 10492
RIPE Region origin ASes present in the Internet Routing Table: 4147
RIPE Region origin ASes announcing only one prefix: 2248
RIPE Region transit ASes present in the Internet Routing Table: 765
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122828736
Equivalent to 7 /8s, 82 /16s and 55 /24s
Percentage of available RIPE address space announced: 81.3
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: 4868
Total LACNIC prefixes after maximum aggregation: 2113
Prefixes being announced from the LACNIC address blocks: 4208
Unique aggregates announced from the LACNIC address blocks: 2696
LACNIC Region origin ASes present in the Internet Routing Table: 320
LACNIC Region origin ASes announcing only one prefix: 82
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: 17
Number of LACNIC addresses announced to Internet: 11728128
Equivalent to 0 /8s, 178 /16s and 245 /24s
Percentage of available LACNIC address space announced: 69.9
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 1184 1168 859 Telstra Pty Ltd
703 390 365 309 UUNET
2907 352 1768 331 SINET Japan
2764 338 356 308 connect.com.au pty ltd
17557 316 23 121 Pakistan Telecom
7474 300 279 199 Optus Communications Pty Ltd
4134 296 2287 98 Data Communications Bureau
4755 266 136 71 Videsh Sanchar Nigam Ltd. Aut
4766 236 1807 152 Korea Internet Exchange for "
4814 234 79 15 China Telecom (Group)
17676 227 3554 29 XTAGE CORPORATION
9443 182 57 71 Primus Telecommunications
9583 170 33 9 Satyam Infoway Ltd.,
4515 137 102 75 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 130 724 124 TTnet
7657 124 24 90 The Internet Group Limited
4621 122 11 65 UNINET-TH
9800 122 188 24 CHINA UNICOM
4739 118 56 109 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1728 9054 1241 UUNET Technologies, Inc.
7018 1340 7180 934 AT&T
3908 1094 1652 509 Supernet, Inc.
1239 902 3171 661 Sprint
7843 757 375 285 Adelphia Corp.
852 707 1147 466 Telus Advanced Communications
1 664 8122 442 GENUITY
7046 593 858 287 UUNET Technologies, Inc.
209 573 2062 330 Qwest
19029 564 127 28 New Edge Networks
4323 516 452 175 Time Warner Communications, I
690 506 74 317 Merit Network
7066 488 204 256 Virginia Polytechnic Institut
705 440 134 200 UUNET Technologies, Inc.
6197 439 233 200 BellSouth Network Solutions,
3561 418 2281 361 Cable & Wireless USA
3549 405 728 291 Global Crossing
6198 405 176 198 BellSouth Network Solutions,
2548 403 1020 243 Business Internet, Inc.
4355 400 311 116 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 823 2334 689 UUNET - Commercial IP service
3301 380 1163 335 TeliaNet Sweden
3215 311 789 172 France Telecom Transpac
3320 246 1964 222 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 208 415 202 SWIPnet Swedish IP Network
5400 194 86 112 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 172 1304 134 BTnet UK Regional network
8708 163 41 149 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
20858 137 10 32 This AS will be used to conne
12302 122 17 29 MobiFon S.A.
3246 119 375 116 Song Networks
8220 115 169 107 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 267 114 58 ImpSat USA, Inc.
8151 210 331 111 UniNet S.A. de C.V.
7303 183 28 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 96 6 32 TVCABLE BOGOTA
11992 81 8 30 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 75 27 37 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
6535 73 5 16 Chilesat Servicios Empresari
4270 71 18 10 Red de Interconexion Universi
4926 63 4 51 Telintar S.A.
7984 62 11 39 Global One Colombia
8065 61 6 16 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
7927 55 5 39 Global One Venezuela
14117 52 3 3 Telefonica del Sur S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1094 585 Supernet, Inc.
19029 564 536 New Edge Networks
7843 757 472 Adelphia Corp.
7018 1340 406 AT&T
18566 348 344 Covad Communications
4323 516 341 Time Warner Communications, I
1221 1184 325 Telstra Pty Ltd
1580 322 309 ANOSCEUR
7046 593 306 UUNET Technologies, Inc.
4355 400 284 EarthLink, Inc.
6347 355 280 SAVVIS Communications Corpora
4151 334 278 USDA
209 573 243 Qwest
1239 902 241 Sprint
852 707 241 Telus Advanced Communications
705 440 240 UUNET Technologies, Inc.
376 344 240 Reseau Interordinateurs Scien
6197 439 239 BellSouth Network Solutions,
7066 488 232 Virginia Polytechnic Institut
1 664 222 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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 /8:18 /9:3 /10:8 /11:11 /12:46
/13:90 /14:237 /15:431 /16:7307 /17:1531 /18:2743
/19:7915 /20:7543 /21:5364 /22:8275 /23:9967 /24:65189
/25:165 /26:194 /27:108 /28:103 /29:67 /30:230
/31:19 /32:66
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 643 1094 Supernet, Inc.
7843 566 757 Adelphia Corp.
19029 530 564 New Edge Networks
702 498 823 UUNET - Commercial IP service
701 494 1728 UUNET Technologies, Inc.
690 454 506 Merit Network
7018 430 1340 AT&T
7066 387 488 Virginia Polytechnic Institut
18566 343 348 Covad Communications
6197 332 439 BellSouth Network Solutions,
6198 321 405 BellSouth Network Solutions,
1580 308 322 ANOSCEUR
1239 289 902 Sprint
7046 286 593 UUNET Technologies, Inc.
209 260 573 Qwest
3215 236 311 France Telecom Transpac
11492 230 235 Cable One
3301 225 380 TeliaNet Sweden
4355 223 400 EarthLink, Inc.
11537 220 226 University Corporation for Ad
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:1 12:589 13:10 15:4 17:3
20:5 24:890 25:1 32:48 38:27 40:12
44:1 55:1 57:16 61:380 62:387 63:1896
64:1407 65:1686 66:1192 67:131 68:202 69:18
80:302 81:73 128:120 129:110 130:22 131:66
132:9 133:2 134:140 135:7 136:412 137:109
138:216 139:76 140:154 141:92 142:88 143:46
144:148 145:18 146:253 147:253 148:256 149:78
150:42 151:87 152:282 153:36 154:8 155:104
156:104 157:76 158:95 159:149 160:24 161:74
162:131 163:85 164:255 165:135 166:93 167:298
168:313 169:56 170:246 171:6 192:5421 193:2384
194:2000 195:855 196:446 198:3602 199:3049 200:2563
202:3499 203:4850 204:3280 205:2119 206:2364 207:2456
208:2572 209:2830 210:624 211:286 212:884 213:780
214:12 215:20 216:3056 217:505 218:64 219:7
End of report
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