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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 Sun 13 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115988
Prefixes after maximum aggregation: 74599
Unique aggregates announced to Internet: 55443
Total ASes present in the Internet Routing Table: 13886
Origin-only ASes present in the Internet Routing Table: 12021
Origin ASes announcing only one prefix: 5381
Transit ASes present in the Internet Routing Table: 1865
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: 1192365704
Equivalent to 71 /8s, 18 /16s and 14 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48197
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18860
Total APNIC prefixes after maximum aggregation: 11405
Prefixes being announced from the APNIC address blocks: 17372
Unique aggregates announced from the APNIC address blocks: 11026
APNIC Region origin ASes present in the Internet Routing Table: 1619
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 98270368
Equivalent to 5 /8s, 219 /16s and 124 /24s
Percentage of available APNIC address space announced: 64.6
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: 72748
Total ARIN prefixes after maximum aggregation: 46201
Prefixes being announced from the ARIN address blocks: 50869
Unique aggregates announced from the ARIN address blocks: 15366
ARIN Region origin ASes present in the Internet Routing Table: 7809
ARIN Region origin ASes announcing only one prefix: 2573
ARIN Region transit ASes present in the Internet Routing Table: 749
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181443936
Equivalent to 10 /8s, 208 /16s and 157 /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: 19705
Total RIPE prefixes after maximum aggregation: 14936
Prefixes being announced from the RIPE address blocks: 16364
Unique aggregates announced from the RIPE address blocks: 10889
RIPE Region origin ASes present in the Internet Routing Table: 4085
RIPE Region origin ASes announcing only one prefix: 2208
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 115864448
Equivalent to 6 /8s, 231 /16s and 243 /24s
Percentage of available RIPE address space announced: 76.7
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
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: 2057
Prefixes being announced from the LACNIC address blocks: 4115
Unique aggregates announced from the LACNIC address blocks: 2622
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: 68
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11447808
Equivalent to 0 /8s, 174 /16s and 174 /24s
Percentage of available LACNIC address space announced: 68.2
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 1198 1187 878 Telstra Pty Ltd
703 393 368 309 UUNET
2907 351 1767 330 SINET Japan
2764 341 356 313 connect.com.au pty ltd
7474 302 275 206 Optus Communications Pty Ltd
4134 293 2268 95 Data Communications Bureau
17557 289 21 117 Pakistan Telecom
4755 271 139 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 225 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 185 57 72 Primus Telecommunications
9583 167 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 22 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 1787 9199 1279 UUNET Technologies, Inc.
7018 1349 7182 939 AT&T
3908 1063 1651 505 Supernet, Inc.
1239 872 3186 655 Sprint
852 737 1145 456 Telus Advanced Communications
7843 729 371 303 Adelphia Corp.
1 655 8042 432 GENUITY
7132 595 672 69 Southwestern Bell Internet Se
7046 582 878 301 UUNET Technologies, Inc.
209 574 2064 335 Qwest
4323 518 439 165 Time Warner Communications, I
690 517 75 324 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
2548 437 1118 269 Business Internet, Inc.
705 410 130 200 UUNET Technologies, Inc.
3549 404 725 290 Global Crossing
6198 396 180 195 BellSouth Network Solutions,
6197 392 601 40 BellSouth Network Solutions,
4355 379 292 104 EarthLink, Inc.
2914 365 2020 358 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 873 2406 728 UUNET - Commercial IP service
3301 382 1164 337 TeliaNet Sweden
3215 295 661 171 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
5400 205 83 97 BT Ignite European Backbone
1257 204 444 200 SWIPnet Swedish IP Network
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 160 790 138 BTnet UK Regional network
8708 154 41 146 Romania Data Systems S.A.
3303 144 532 143 Swisscom Ltd
3246 122 373 115 Song Networks
12302 122 17 29 MobiFon S.A.
8220 112 168 104 COLT Internet - International
5511 110 192 88 France Telecom
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
6830 102 222 12 UPC Distribution Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 204 330 111 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 152 78 43 ImpSat USA, Inc.
6503 150 174 108 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
11992 72 7 30 Integrated Systems
1916 71 404 42 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
15034 64 5 33 TIBA SA
4926 62 4 50 Telintar S.A.
7984 62 27 42 Global One Colombia
2277 59 16 3 ECUANET - CORPORACION ECUATOR
8065 59 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 1063 558 Supernet, Inc.
7132 595 526 Southwestern Bell Internet Se
7843 729 426 Adelphia Corp.
7018 1349 410 AT&T
4323 518 353 Time Warner Communications, I
6197 392 352 BellSouth Network Solutions,
1221 1198 320 Telstra Pty Ltd
1580 320 308 ANOSCEUR
18566 298 294 Covad Communications
852 737 281 Telus Advanced Communications
7046 582 281 UUNET Technologies, Inc.
4151 292 276 USDA
4355 379 275 EarthLink, Inc.
6347 347 272 SAVVIS Communications Corpora
209 574 239 Qwest
7066 490 233 Virginia Polytechnic Institut
376 342 232 Reseau Interordinateurs Scien
1 655 223 GENUITY
1239 872 217 Sprint
11492 225 211 Cable One
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 /8:18 /9:6 /10:7 /11:12 /12:38
/13:90 /14:240 /15:430 /16:7270 /17:1509 /18:2718
/19:7889 /20:7552 /21:5327 /22:8198 /23:9921 /24:63981
/25:176 /26:220 /27:115 /28:77 /29:55 /30:101
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 633 1063 Supernet, Inc.
7843 541 729 Adelphia Corp.
702 538 873 UUNET - Commercial IP service
701 492 1787 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 431 1349 AT&T
7066 388 490 Virginia Polytechnic Institut
6198 312 396 BellSouth Network Solutions,
1580 307 320 ANOSCEUR
18566 292 298 Covad Communications
6197 276 392 BellSouth Network Solutions,
7046 267 582 UUNET Technologies, Inc.
1239 258 872 Sprint
209 256 574 Qwest
3215 227 295 France Telecom Transpac
3301 227 382 TeliaNet Sweden
11492 220 225 Cable One
4355 217 379 EarthLink, Inc.
3320 187 256 Deutsche Telekom AG
705 186 410 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:560 13:10 15:4 17:7 20:4
24:838 25:1 32:42 38:26 40:9 44:1
55:1 57:14 61:358 62:243 63:1885 64:1283
65:1591 66:1193 67:113 68:146 69:8 80:304
81:62 128:131 129:126 130:19 131:62 132:9
133:2 134:128 135:9 136:512 137:106 138:202
139:70 140:167 141:66 142:69 143:49 144:153
145:17 146:240 147:224 148:247 149:122 150:41
151:77 152:295 153:38 154:8 155:104 156:102
157:103 158:72 159:138 160:21 161:74 162:123
163:83 164:258 165:127 166:104 167:288 168:301
169:62 170:190 171:6 192:5379 193:2348 194:2016
195:814 196:439 198:3629 199:3065 200:2526 202:3459
203:4820 204:3283 205:2113 206:2390 207:2478 208:2572
209:2562 210:600 211:250 212:872 213:771 214:9
215:19 216:2951 217:512 218:50 219:2
End of report
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