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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 30 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 119063
Prefixes after maximum aggregation: 75505
Unique aggregates announced to Internet: 56584
Total ASes present in the Internet Routing Table: 14151
Origin-only ASes present in the Internet Routing Table: 12260
Origin ASes announcing only one prefix: 5535
Transit ASes present in the Internet Routing Table: 1891
Transit-only ASes present in the Internet Routing Table: 64
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: 3
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: 1185085277
Equivalent to 70 /8s, 162 /16s and 247 /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: 54141
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19289
Total APNIC prefixes after maximum aggregation: 11443
Prefixes being announced from the APNIC address blocks: 17825
Unique aggregates announced from the APNIC address blocks: 11193
APNIC Region origin ASes present in the Internet Routing Table: 1651
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 11
Number of APNIC addresses announced to Internet: 100835744
Equivalent to 6 /8s, 2 /16s and 161 /24s
Percentage of available APNIC address space announced: 66.3
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: 74727
Total ARIN prefixes after maximum aggregation: 46868
Prefixes being announced from the ARIN address blocks: 52159
Unique aggregates announced from the ARIN address blocks: 15696
ARIN Region origin ASes present in the Internet Routing Table: 7942
ARIN Region origin ASes announcing only one prefix: 2668
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: 17
Number of ARIN addresses announced to Internet: 183750624
Equivalent to 10 /8s, 243 /16s and 207 /24s
Percentage of available ARIN address space announced: 68.5
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: 20134
Total RIPE prefixes after maximum aggregation: 15101
Prefixes being announced from the RIPE address blocks: 16779
Unique aggregates announced from the RIPE address blocks: 11182
RIPE Region origin ASes present in the Internet Routing Table: 4174
RIPE Region origin ASes announcing only one prefix: 2262
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 120390080
Equivalent to 7 /8s, 45 /16s and 1 /24s
Percentage of available RIPE address space announced: 79.7
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, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4912
Total LACNIC prefixes after maximum aggregation: 2093
Prefixes being announced from the LACNIC address blocks: 4280
Unique aggregates announced from the LACNIC address blocks: 2775
LACNIC Region origin ASes present in the Internet Routing Table: 320
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11747072
Equivalent to 0 /8s, 179 /16s and 63 /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 1169 1184 846 Telstra Pty Ltd
703 397 364 311 UUNET
2907 353 1751 332 SINET Japan
2764 342 341 310 connect.com.au pty ltd
17557 312 23 122 Pakistan Telecom
7474 305 280 203 Optus Communications Pty Ltd
4134 299 2361 102 Data Communications Bureau
4755 276 136 74 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 230 3570 27 XTAGE CORPORATION
4766 226 1807 150 Korea Internet Exchange for "
9443 184 57 73 Primus Telecommunications
9583 176 33 12 Satyam Infoway Ltd.,
9768 135 386 64 Korea Telecom
4716 130 724 124 TTnet
9800 129 190 30 CHINA UNICOM
7657 126 25 91 The Internet Group Limited
4621 121 11 65 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
4515 113 102 47 Star Internet Services Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 2406 1668 506 Supernet, Inc.
701 1742 9040 1245 UUNET Technologies, Inc.
7018 1396 7147 974 AT&T
1239 914 3172 658 Sprint
852 668 1147 466 Telus Advanced Communications
7843 665 396 274 Adelphia Corp.
1 663 8090 435 GENUITY
7046 587 862 285 UUNET Technologies, Inc.
4323 526 455 167 Time Warner Communications, I
209 522 2048 337 Qwest
690 506 74 319 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 444 236 202 BellSouth Network Solutions,
705 439 134 199 UUNET Technologies, Inc.
6198 414 177 198 BellSouth Network Solutions,
3561 411 2234 352 Cable & Wireless USA
3549 403 741 294 Global Crossing
4355 403 313 118 EarthLink, Inc.
15290 389 214 174 AT&T Canada IES
18566 378 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 818 2331 682 UUNET - Commercial IP service
3301 380 1163 335 TeliaNet Sweden
3215 308 805 171 France Telecom Transpac
3320 247 1964 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 189 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 173 1302 135 BTnet UK Regional network
5400 169 74 104 BT Ignite European Backbone
8708 152 41 145 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
20858 140 17 4 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
3246 119 379 116 Song Networks
8220 119 174 111 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 268 114 57 ImpSat USA, Inc.
8151 202 331 111 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 167 88 34 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 79 57 23 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 28 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 64 12 41 Global One Colombia
4926 63 4 51 Telintar S.A.
15034 57 5 32 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1742 497 UUNET Technologies, Inc.
7018 1396 422 AT&T
7843 665 391 Adelphia Corp.
18566 378 373 Covad Communications
4323 526 359 Time Warner Communications, I
1221 1169 323 Telstra Pty Ltd
7046 587 302 UUNET Technologies, Inc.
1580 315 302 ANOSCEUR
4151 353 295 USDA
6347 364 289 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
11492 272 260 Cable One
1239 914 256 Sprint
22927 275 255 TELEFONICA DE ARGENTINA
6197 444 242 BellSouth Network Solutions,
705 439 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 663 228 GENUITY
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
63000 RESERVED 200.63.222.0/24 14522 SatNet S.A.
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 /14:237 /15:439 /16:7314 /17:1526 /18:2763
/19:7974 /20:7647 /21:5465 /22:8354 /23:10054 /24:66238
/25:144 /26:177 /27:88 /28:95 /29:69 /30:236
/31:19 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 972 2406 Supernet, Inc.
701 508 1742 UUNET Technologies, Inc.
702 500 818 UUNET - Commercial IP service
7018 463 1396 AT&T
7843 457 665 Adelphia Corp.
690 455 506 Merit Network
7066 388 491 Virginia Polytechnic Institut
18566 371 378 Covad Communications
6197 334 444 BellSouth Network Solutions,
6198 332 414 BellSouth Network Solutions,
1239 306 914 Sprint
1580 301 315 ANOSCEUR
7046 278 587 UUNET Technologies, Inc.
22927 274 275 TELEFONICA DE ARGENTINA
11492 270 272 Cable One
6140 256 268 ImpSat USA, Inc.
3215 235 308 France Telecom Transpac
3301 227 380 TeliaNet Sweden
4355 223 403 EarthLink, Inc.
11537 220 226 University Corporation for Ad
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:609 13:10 15:4 17:3 20:5
24:853 25:1 32:46 38:28 40:16 44:1
55:1 57:14 61:396 62:404 63:1924 64:1299
65:1677 66:1225 67:190 68:182 69:23 80:318
81:77 128:118 129:170 130:19 131:67 132:9
133:2 134:157 135:7 136:491 137:109 138:216
139:80 140:155 141:92 142:89 143:46 144:149
145:18 146:251 147:241 148:270 149:76 150:43
151:86 152:289 153:36 154:7 155:100 156:106
157:55 158:110 159:156 160:21 161:71 162:139
163:88 164:256 165:127 166:94 167:295 168:372
169:56 170:272 171:6 192:5411 193:2381 194:2013
195:843 196:460 198:3702 199:3112 200:2626 202:3575
203:4851 204:3553 205:2427 206:2376 207:2526 208:2585
209:2647 210:617 211:277 212:861 213:795 214:12
215:21 216:3040 217:524 218:64 219:14 220:1
End of report
