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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 20 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118063
Prefixes after maximum aggregation: 75280
Unique aggregates announced to Internet: 56321
Total ASes present in the Internet Routing Table: 14104
Origin-only ASes present in the Internet Routing Table: 12213
Origin ASes announcing only one prefix: 5511
Transit ASes present in the Internet Routing Table: 1891
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1184275837
Equivalent to 70 /8s, 150 /16s and 157 /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: 49971
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19223
Total APNIC prefixes after maximum aggregation: 11469
Prefixes being announced from the APNIC address blocks: 17751
Unique aggregates announced from the APNIC address blocks: 11168
APNIC Region origin ASes present in the Internet Routing Table: 1646
APNIC Region origin ASes announcing only one prefix: 524
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: 11
Number of APNIC addresses announced to Internet: 100178112
Equivalent to 5 /8s, 248 /16s and 152 /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: 73868
Total ARIN prefixes after maximum aggregation: 46707
Prefixes being announced from the ARIN address blocks: 51569
Unique aggregates announced from the ARIN address blocks: 15682
ARIN Region origin ASes present in the Internet Routing Table: 7918
ARIN Region origin ASes announcing only one prefix: 2651
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 183413216
Equivalent to 10 /8s, 238 /16s and 169 /24s
Percentage of available ARIN address space announced: 68.3
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: 20090
Total RIPE prefixes after maximum aggregation: 15013
Prefixes being announced from the RIPE address blocks: 16729
Unique aggregates announced from the RIPE address blocks: 11073
RIPE Region origin ASes present in the Internet Routing Table: 4153
RIPE Region origin ASes announcing only one prefix: 2254
RIPE Region transit ASes present in the Internet Routing Table: 770
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 119843776
Equivalent to 7 /8s, 36 /16s and 171 /24s
Percentage of available RIPE address space announced: 79.4
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
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: 4882
Total LACNIC prefixes after maximum aggregation: 2091
Prefixes being announced from the LACNIC address blocks: 4247
Unique aggregates announced from the LACNIC address blocks: 2726
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 11744512
Equivalent to 0 /8s, 179 /16s and 53 /24s
Percentage of available LACNIC address space announced: 70.0
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 1175 1184 855 Telstra Pty Ltd
703 394 364 310 UUNET
2907 350 1751 330 SINET Japan
2764 339 357 307 connect.com.au pty ltd
7474 303 279 202 Optus Communications Pty Ltd
17557 301 22 120 Pakistan Telecom
4134 296 2285 97 Data Communications Bureau
4755 261 136 70 Videsh Sanchar Nigam Ltd. Aut
4814 247 79 15 China Telecom (Group)
4766 236 1807 152 Korea Internet Exchange for "
17676 227 3554 29 XTAGE CORPORATION
9443 183 57 71 Primus Telecommunications
9583 172 33 10 Satyam Infoway Ltd.,
4515 141 102 75 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 129 724 123 TTnet
7657 125 24 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4621 120 11 70 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1738 9039 1244 UUNET Technologies, Inc.
7018 1368 7190 947 AT&T
3908 1156 1668 510 Supernet, Inc.
1239 908 3172 658 Sprint
7843 723 385 279 Adelphia Corp.
852 665 1147 466 Telus Advanced Communications
1 658 8090 438 GENUITY
209 591 2048 333 Qwest
7046 583 859 284 UUNET Technologies, Inc.
19029 568 127 28 New Edge Networks
4323 523 455 166 Time Warner Communications, I
690 507 74 319 Merit Network
7066 487 204 256 Virginia Polytechnic Institut
6197 440 235 201 BellSouth Network Solutions,
705 438 134 198 UUNET Technologies, Inc.
3561 415 2282 356 Cable & Wireless USA
3549 408 744 294 Global Crossing
6198 406 176 198 BellSouth Network Solutions,
4355 402 313 118 EarthLink, Inc.
2548 389 1036 240 Business Internet, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 827 2332 693 UUNET - Commercial IP service
3301 381 1164 336 TeliaNet Sweden
3215 310 789 171 France Telecom Transpac
3320 244 1964 220 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 206 415 201 SWIPnet Swedish IP Network
719 190 306 129 LANLINK autonomous system
5400 186 81 106 BT Ignite European Backbone
786 176 1873 176 The JANET IP Service
2856 172 1304 134 BTnet UK Regional network
8708 153 41 147 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
20858 138 17 4 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
3246 119 375 116 Song Networks
8220 117 173 109 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
5511 103 192 84 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 268 114 58 ImpSat USA, Inc.
8151 210 331 111 UniNet S.A. de C.V.
7303 183 28 51 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 97 6 33 TVCABLE BOGOTA
11992 81 8 30 Integrated Systems
11340 79 2 30 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
6147 66 57 23 Telefonica Del Peru
4926 63 4 51 Telintar S.A.
7984 63 11 40 Global One Colombia
8065 60 6 15 Empresas Publicas de Medellin
15034 58 5 34 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1156 646 Supernet, Inc.
19029 568 540 New Edge Networks
7843 723 444 Adelphia Corp.
7018 1368 421 AT&T
18566 367 362 Covad Communications
4323 523 357 Time Warner Communications, I
1221 1175 320 Telstra Pty Ltd
1580 319 306 ANOSCEUR
7046 583 299 UUNET Technologies, Inc.
4151 351 292 USDA
6347 360 286 SAVVIS Communications Corpora
4355 402 284 EarthLink, Inc.
209 591 258 Qwest
22927 275 255 TELEFONICA DE ARGENTINA
1239 908 250 Sprint
11492 255 245 Cable One
705 438 240 UUNET Technologies, Inc.
6197 440 239 BellSouth Network Solutions,
376 343 239 Reseau Interordinateurs Scien
4814 247 232 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 /8:17 /9:3 /10:8 /11:11 /12:46
/13:91 /14:236 /15:437 /16:7321 /17:1539 /18:2746
/19:7945 /20:7578 /21:5394 /22:8305 /23:10001 /24:65442
/25:160 /26:187 /27:110 /28:103 /29:69 /30:232
/31:19 /32:63
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 688 1156 Supernet, Inc.
19029 534 568 New Edge Networks
7843 525 723 Adelphia Corp.
702 504 827 UUNET - Commercial IP service
701 500 1738 UUNET Technologies, Inc.
690 455 507 Merit Network
7018 441 1368 AT&T
7066 386 487 Virginia Polytechnic Institut
18566 360 367 Covad Communications
6197 331 440 BellSouth Network Solutions,
6198 322 406 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
1239 302 908 Sprint
209 278 591 Qwest
7046 274 583 UUNET Technologies, Inc.
11492 250 255 Cable One
3215 235 310 France Telecom Transpac
3301 226 381 TeliaNet Sweden
22927 225 275 TELEFONICA DE ARGENTINA
4355 222 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:1 12:591 13:10 15:4 17:3
20:5 24:861 25:1 32:46 38:27 40:13
44:1 55:1 57:16 61:393 62:394 63:1880
64:1386 65:1673 66:1216 67:144 68:202 69:20
80:302 81:73 128:118 129:111 130:19 131:67
132:9 133:2 134:143 135:7 136:493 137:108
138:216 139:77 140:154 141:94 142:88 143:46
144:149 145:18 146:254 147:252 148:257 149:77
150:43 151:87 152:290 153:36 154:8 155:97
156:106 157:41 158:104 159:150 160:22 161:73
162:137 163:87 164:254 165:137 166:93 167:296
168:370 169:56 170:255 171:6 192:5422 193:2389
194:1998 195:867 196:456 198:3597 199:3061 200:2592
202:3537 203:4831 204:3275 205:2109 206:2350 207:2465
208:2580 209:2860 210:616 211:286 212:886 213:789
214:12 215:20 216:3095 217:506 218:63 219:7
End of report
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