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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 27 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129625
Prefixes after maximum aggregation: 80979
Unique aggregates announced to Internet: 62648
Total ASes present in the Internet Routing Table: 16062
Origin-only ASes present in the Internet Routing Table: 13933
Origin ASes announcing only one prefix: 6359
Transit ASes present in the Internet Routing Table: 2129
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1250714307
Equivalent to 74 /8s, 140 /16s and 98 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57427
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22955
Total APNIC prefixes after maximum aggregation: 12872
Prefixes being announced from the APNIC address blocks: 21375
Unique aggregates announced from the APNIC address blocks: 12474
APNIC Region origin ASes present in the Internet Routing Table: 1923
APNIC Region origin ASes announcing only one prefix: 559
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123882752
Equivalent to 7 /8s, 98 /16s and 77 /24s
Percentage of available APNIC address space announced: 66.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77246
Total ARIN prefixes after maximum aggregation: 48479
Prefixes being announced from the ARIN address blocks: 59981
Unique aggregates announced from the ARIN address blocks: 20874
ARIN Region origin ASes present in the Internet Routing Table: 8703
ARIN Region origin ASes announcing only one prefix: 3011
ARIN Region transit ASes present in the Internet Routing Table: 839
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 207723168
Equivalent to 12 /8s, 97 /16s and 154 /24s
Percentage of available ARIN address space announced: 72.8
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22778
Total RIPE prefixes after maximum aggregation: 16662
Prefixes being announced from the RIPE address blocks: 19664
Unique aggregates announced from the RIPE address blocks: 13113
RIPE Region origin ASes present in the Internet Routing Table: 4914
RIPE Region origin ASes announcing only one prefix: 2655
RIPE Region transit ASes present in the Internet Routing Table: 872
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 138152512
Equivalent to 8 /8s, 60 /16s and 10 /24s
Percentage of available RIPE address space announced: 74.9
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
30720 - 31743
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5556
Total LACNIC prefixes after maximum aggregation: 2263
Prefixes being announced from the LACNIC address blocks: 5059
Unique aggregates announced from the LACNIC address blocks: 3232
LACNIC Region origin ASes present in the Internet Routing Table: 357
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13426176
Equivalent to 0 /8s, 204 /16s and 222 /24s
Percentage of available LACNIC address space announced: 40.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1087
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 697
Unique aggregates announced from the AfriNIC address blocks: 532
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 30
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748480
Equivalent to 0 /8s, 26 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 10.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 969 1109 686 Telstra Pty Ltd
4755 391 134 70 Videsh Sanchar Nigam Ltd. Aut
4134 368 2293 106 Data Communications Bureau
2907 367 1879 344 SINET Japan
703 331 356 266 UUNET
2764 295 289 256 connect.com.au pty ltd
17557 287 20 143 Pakistan Telecom
17676 273 4028 34 XTAGE CORPORATION
9583 269 44 11 Satyam Infoway Ltd.,
7474 261 305 208 Optus Communications Pty Ltd
4766 242 2462 177 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9800 203 334 55 CHINA UNICOM
9942 200 69 116 COMindico Australia
9929 189 160 36 China Netcom Corp.
9443 188 72 83 Primus Telecommunications
9498 186 20 20 BHARTI BT INTERNET LTD.
17642 157 40 116 RequestDSL BGP AS# for Sydney
4739 144 58 133 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1446 8668 1001 UUNET Technologies, Inc.
7018 1354 7096 939 AT&T
1239 924 3053 666 Sprint
3908 813 1490 446 Supernet, Inc.
209 738 2299 450 Qwest
18566 707 176 8 Covad Communications
4323 680 576 196 Time Warner Communications, I
6197 644 455 240 BellSouth Network Solutions,
3356 606 10817 504 Level 3 Communications, LLC
6198 572 321 196 BellSouth Network Solutions,
20115 542 276 309 Charter Communications
7843 532 477 140 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
690 410 59 275 Merit Network
4355 396 331 106 EarthLink, Inc.
705 395 183 239 UUNET Technologies, Inc.
2386 384 526 201 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 344 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 700 2094 579 UUNET - Commercial IP service
3301 301 1169 286 TeliaNet Sweden
3320 274 2004 235 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 454 191 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
719 193 307 123 LANLINK autonomous system
5400 187 172 135 BT Ignite European Backbone
5515 186 779 147 Sonera Solution Autonomous Sy
3215 179 688 90 France Telecom Transpac
786 176 1857 176 The JANET IP Service
8708 161 111 155 Romania Data Systems S.A.
3303 146 557 141 Swisscom Ltd
25186 133 161 95 France Telecom Transpac's Tra
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
3269 119 913 66 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
2647 101 4225 49 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 235 351 127 UniNet S.A. de C.V.
7303 212 41 55 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 123 8 26 TVCABLE BOGOTA
6147 107 70 19 Telefonica Del Peru
11340 103 3 29 Red Universitaria Nacional
11992 85 24 31 Integrated Systems
8065 84 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 75 22 24 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
11311 67 7 23 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
4926 57 4 48 Telintar S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 633 220 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 83 5 30 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
9129 19 2 1 UUNET Kenya
10798 17 1 11 Standard Bank of South Africa
15706 15 2 5 Sudatel Internet Exchange Aut
8524 14 1 3 AUCEGYPT Autonomous System
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
3208 13 2 1 ARN Network
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 707 699 Covad Communications
4323 680 484 Time Warner Communications, I
7018 1354 415 AT&T
6197 644 404 BellSouth Network Solutions,
7843 532 392 Adelphia Corp.
6198 572 376 BellSouth Network Solutions,
3908 813 367 Supernet, Inc.
4755 391 321 Videsh Sanchar Nigam Ltd. Aut
27364 316 293 Armstrong Cable Services
5668 308 292 Century Telephone
4355 396 290 EarthLink, Inc.
209 738 288 Qwest
22909 303 284 Comcast Cable Corporation
1221 969 283 Telstra Pty Ltd
22773 296 279 Cox Communications, Inc. Atla
6347 344 264 SAVVIS Communications Corpora
4134 368 262 Data Communications Bureau
1239 924 258 Sprint
9583 269 258 Satyam Infoway Ltd.,
376 361 246 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18415 UNALLOCATED 61.57.240.0/22 17709 Eastern Broadband Te
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65503 PRIVATE 202.133.192.0/20 4775 Telecom Carrier /
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
0.0.0.0/8 17956 WASEDA University
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
117.53.113.0/24 1299 TeliaNet Global Network
117.53.114.0/24 1299 TeliaNet Global Network
117.53.126.0/24 1299 TeliaNet Global Network
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.153.136.0/21 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:12 /12:55
/13:98 /14:268 /15:471 /16:7445 /17:1786 /18:3216
/19:8551 /20:9058 /21:6656 /22:9665 /23:10877 /24:70756
/25:158 /26:209 /27:158 /28:44 /29:23 /30:50
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 701 707 Covad Communications
3908 512 813 Supernet, Inc.
6197 503 644 BellSouth Network Solutions,
7018 483 1354 AT&T
701 445 1446 UUNET Technologies, Inc.
6198 443 572 BellSouth Network Solutions,
702 421 700 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 350 542 Charter Communications
1239 324 924 Sprint
209 321 738 Qwest
27364 310 316 Armstrong Cable Services
3356 292 606 Level 3 Communications, LLC
5668 274 308 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
4355 221 396 EarthLink, Inc.
10753 217 265 XCOM Technologies, INC.
3320 216 274 Deutsche Telekom AG
7843 210 532 Adelphia Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:723 13:1 15:6 16:1 17:2
20:7 24:821 25:1 32:82 34:1 38:50
40:23 43:1 44:2 55:1 57:14 61:298
62:447 63:1868 64:1819 65:1937 66:2170 67:291
68:396 69:286 80:422 81:163 82:72 117:3
128:156 129:157 130:63 131:82 132:18 134:168
135:10 136:182 137:119 138:133 139:48 140:177
141:138 142:101 143:49 144:60 145:35 146:282
147:67 148:304 149:79 150:121 151:64 152:212
153:59 154:8 155:130 156:58 157:59 158:139
159:141 160:46 161:68 162:361 163:65 164:317
165:150 166:100 167:310 168:178 169:96 170:314
171:9 192:5434 193:2419 194:2018 195:1289 196:482
198:3604 199:2819 200:3070 201:3 202:4068 203:5320
204:2999 205:2040 206:2283 207:2607 208:2514 209:2790
210:945 211:394 212:953 213:952 214:17 215:21
216:3311 217:773 218:116 219:42 220:114 221:15
222:1
End of report
