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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 16 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 119023
Prefixes after maximum aggregation: 75758
Unique aggregates announced to Internet: 56936
Total ASes present in the Internet Routing Table: 14232
Origin-only ASes present in the Internet Routing Table: 12344
Origin ASes announcing only one prefix: 5585
Transit ASes present in the Internet Routing Table: 1888
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
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: 39
Number of addresses announced to Internet: 1186177069
Equivalent to 70 /8s, 179 /16s and 160 /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: 54623
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19358
Total APNIC prefixes after maximum aggregation: 11487
Prefixes being announced from the APNIC address blocks: 17912
Unique aggregates announced from the APNIC address blocks: 11145
APNIC Region origin ASes present in the Internet Routing Table: 1656
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101302944
Equivalent to 6 /8s, 9 /16s and 194 /24s
Percentage of available APNIC address space announced: 66.6
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: 74308
Total ARIN prefixes after maximum aggregation: 46981
Prefixes being announced from the ARIN address blocks: 51811
Unique aggregates announced from the ARIN address blocks: 15806
ARIN Region origin ASes present in the Internet Routing Table: 7983
ARIN Region origin ASes announcing only one prefix: 2692
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184250608
Equivalent to 10 /8s, 251 /16s and 112 /24s
Percentage of available ARIN address space announced: 68.6
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: 20353
Total RIPE prefixes after maximum aggregation: 15168
Prefixes being announced from the RIPE address blocks: 17022
Unique aggregates announced from the RIPE address blocks: 11301
RIPE Region origin ASes present in the Internet Routing Table: 4207
RIPE Region origin ASes announcing only one prefix: 2283
RIPE Region transit ASes present in the Internet Routing Table: 772
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 121460608
Equivalent to 7 /8s, 61 /16s and 87 /24s
Percentage of available RIPE address space announced: 80.4
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, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5002
Total LACNIC prefixes after maximum aggregation: 2122
Prefixes being announced from the LACNIC address blocks: 4338
Unique aggregates announced from the LACNIC address blocks: 2809
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11648768
Equivalent to 0 /8s, 177 /16s and 191 /24s
Percentage of available LACNIC address space announced: 69.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1154 1184 836 Telstra Pty Ltd
703 396 363 311 UUNET
2907 362 1785 338 SINET Japan
2764 342 341 310 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 305 279 203 Optus Communications Pty Ltd
4134 292 2368 93 Data Communications Bureau
4755 276 136 72 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 232 3602 27 XTAGE CORPORATION
4766 231 1807 154 Korea Internet Exchange for "
9583 188 33 12 Satyam Infoway Ltd.,
9443 185 57 73 Primus Telecommunications
9800 139 191 37 CHINA UNICOM
9768 135 386 64 Korea Telecom
4716 129 723 123 TTnet
7657 127 26 90 The Internet Group Limited
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
4713 112 1059 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 2163 1666 504 Supernet, Inc.
701 1645 9021 1215 UUNET Technologies, Inc.
7018 1395 7131 967 AT&T
1239 946 3146 674 Sprint
1 668 8090 441 GENUITY
852 624 1140 443 Telus Advanced Communications
7843 599 400 260 Adelphia Corp.
7046 585 861 279 UUNET Technologies, Inc.
4323 529 471 167 Time Warner Communications, I
209 527 2049 341 Qwest
690 513 75 319 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
6197 457 589 92 BellSouth Network Solutions,
705 434 134 194 UUNET Technologies, Inc.
6198 418 181 197 BellSouth Network Solutions,
18566 418 96 5 Covad Communications
3561 415 2240 358 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 402 741 295 Global Crossing
15290 391 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 807 2291 670 UUNET - Commercial IP service
3301 342 1144 300 TeliaNet Sweden
3215 308 804 170 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 214 417 203 SWIPnet Swedish IP Network
5515 214 783 174 Sonera Solution Autonomous Sy
719 199 306 129 LANLINK autonomous system
786 175 1873 175 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 153 42 146 Romania Data Systems S.A.
3303 146 517 145 Swisscom Ltd
20858 146 17 4 This AS will be used to conne
2856 135 1301 123 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3269 110 752 62 TELECOM ITALIA
8517 106 48 3 ULAKNET-ASN
5511 104 193 83 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 107 70 ImpSat USA, Inc.
8151 205 316 111 UniNet S.A. de C.V.
7303 183 28 46 Telecom Argentina Stet-France
11172 171 87 34 Servicios Alestra S.A de C.V
6503 157 207 109 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 107 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 77 58 24 Telefonica Del Peru
1916 73 306 43 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 30 Integrated Systems
7984 65 12 41 Global One Colombia
4926 60 4 50 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 57 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1645 430 UUNET Technologies, Inc.
7018 1395 428 AT&T
18566 418 413 Covad Communications
6197 457 365 BellSouth Network Solutions,
4323 529 362 Time Warner Communications, I
7843 599 339 Adelphia Corp.
1221 1154 318 Telstra Pty Ltd
7046 585 306 UUNET Technologies, Inc.
1580 317 302 ANOSCEUR
4355 407 289 EarthLink, Inc.
1239 946 272 Sprint
6347 350 271 SAVVIS Communications Corpora
4151 327 269 USDA
6140 317 247 ImpSat USA, Inc.
11492 275 245 Cable One
705 434 240 UUNET Technologies, Inc.
376 342 239 Reseau Interordinateurs Scien
4814 249 234 China Telecom (Group)
7066 490 233 Virginia Polytechnic Institut
1 668 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
160.213.122.0/23 25440 Nestle European Data Center
160.213.248.0/21 25440 Nestle European Data Center
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
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
192.119.135.0/24 270 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 /8:17 /9:3 /10:8 /11:11 /12:46
/13:91 /14:238 /15:439 /16:7310 /17:1550 /18:2788
/19:7988 /20:7693 /21:5549 /22:8365 /23:9998 /24:66039
/25:137 /26:173 /27:95 /28:95 /29:68 /30:234
/31:19 /32:69
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 973 2163 Supernet, Inc.
702 495 807 UUNET - Commercial IP service
7018 463 1395 AT&T
690 462 513 Merit Network
701 443 1645 UUNET Technologies, Inc.
18566 412 418 Covad Communications
7066 387 490 Virginia Polytechnic Institut
7843 377 599 Adelphia Corp.
6198 334 418 BellSouth Network Solutions,
6197 333 457 BellSouth Network Solutions,
1239 327 946 Sprint
6140 305 317 ImpSat USA, Inc.
1580 302 317 ANOSCEUR
22927 284 284 TELEFONICA DE ARGENTINA
7046 278 585 UUNET Technologies, Inc.
11492 275 275 Cable One
3215 234 308 France Telecom Transpac
11537 227 233 University Corporation for Ad
4355 225 407 EarthLink, Inc.
209 214 527 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:605 13:10 15:6 17:3 20:5
24:800 25:1 32:44 38:30 40:16 44:1
55:1 57:15 61:407 62:419 63:1867 64:1325
65:1700 66:1248 67:190 68:178 69:45 80:325
81:79 128:119 129:172 130:20 131:68 132:9
133:2 134:150 135:6 136:489 137:106 138:214
139:63 140:154 141:99 142:92 143:46 144:150
145:18 146:254 147:247 148:273 149:76 150:43
151:89 152:291 153:36 154:7 155:103 156:43
157:58 158:119 159:138 160:21 161:71 162:135
163:88 164:258 165:131 166:96 167:302 168:381
169:58 170:278 171:8 178:1 192:5422 193:2422
194:2072 195:884 196:453 198:3666 199:3059 200:2661
202:3591 203:4873 204:3009 205:2460 206:2367 207:2561
208:2584 209:2772 210:625 211:285 212:880 213:757
214:12 215:21 216:3079 217:537 218:66 219:14
220:4
End of report
