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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129997
Prefixes after maximum aggregation: 81169
Unique aggregates announced to Internet: 62716
Total ASes present in the Internet Routing Table: 16085
Origin-only ASes present in the Internet Routing Table: 13938
Origin ASes announcing only one prefix: 6378
Transit ASes present in the Internet Routing Table: 2147
Transit-only ASes present in the Internet Routing Table: 73
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1234695572
Equivalent to 73 /8s, 151 /16s and 245 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57710
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23098
Total APNIC prefixes after maximum aggregation: 12929
Prefixes being announced from the APNIC address blocks: 21513
Unique aggregates announced from the APNIC address blocks: 12461
APNIC Region origin ASes present in the Internet Routing Table: 1929
APNIC Region origin ASes announcing only one prefix: 565
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 124160512
Equivalent to 7 /8s, 102 /16s and 138 /24s
Percentage of available APNIC address space announced: 66.9
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: 77327
Total ARIN prefixes after maximum aggregation: 48539
Prefixes being announced from the ARIN address blocks: 60019
Unique aggregates announced from the ARIN address blocks: 20915
ARIN Region origin ASes present in the Internet Routing Table: 8707
ARIN Region origin ASes announcing only one prefix: 3024
ARIN Region transit ASes present in the Internet Routing Table: 850
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 207811488
Equivalent to 12 /8s, 98 /16s and 243 /24s
Percentage of available ARIN address space announced: 72.9
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: 22922
Total RIPE prefixes after maximum aggregation: 16735
Prefixes being announced from the RIPE address blocks: 19784
Unique aggregates announced from the RIPE address blocks: 13086
RIPE Region origin ASes present in the Internet Routing Table: 4922
RIPE Region origin ASes announcing only one prefix: 2654
RIPE Region transit ASes present in the Internet Routing Table: 878
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 138456320
Equivalent to 8 /8s, 64 /16s and 173 /24s
Percentage of available RIPE address space announced: 75.0
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: 5558
Total LACNIC prefixes after maximum aggregation: 2263
Prefixes being announced from the LACNIC address blocks: 5055
Unique aggregates announced from the LACNIC address blocks: 3228
LACNIC Region origin ASes present in the Internet Routing Table: 358
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13425920
Equivalent to 0 /8s, 204 /16s and 221 /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: 1090
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: 1740544
Equivalent to 0 /8s, 26 /16s and 143 /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 968 1109 685 Telstra Pty Ltd
4755 390 134 68 Videsh Sanchar Nigam Ltd. Aut
4134 368 2293 106 Data Communications Bureau
2907 367 1879 344 SINET Japan
703 332 356 267 UUNET
2764 295 289 256 connect.com.au pty ltd
17557 288 20 144 Pakistan Telecom
17676 274 4044 35 XTAGE CORPORATION
9583 269 44 11 Satyam Infoway Ltd.,
7474 261 305 208 Optus Communications Pty Ltd
4766 246 2462 181 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 201 69 116 COMindico Australia
9929 189 160 36 China Netcom Corp.
9443 187 72 83 Primus Telecommunications
9498 186 20 20 BHARTI BT INTERNET LTD.
17642 157 40 116 RequestDSL BGP AS# for Sydney
4739 145 58 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1447 8668 1002 UUNET Technologies, Inc.
7018 1356 7065 941 AT&T
1239 924 3052 667 Sprint
3908 814 1489 459 Supernet, Inc.
209 731 2295 446 Qwest
18566 707 176 8 Covad Communications
4323 680 576 196 Time Warner Communications, I
6197 646 461 242 BellSouth Network Solutions,
3356 606 10817 504 Level 3 Communications, LLC
6198 570 321 196 BellSouth Network Solutions,
20115 538 277 305 Charter Communications
7843 533 480 136 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.
705 394 183 238 UUNET Technologies, Inc.
7132 385 6814 347 Southwestern Bell Internet Se
2386 384 526 201 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 700 2094 579 UUNET - Commercial IP service
3301 308 1169 286 TeliaNet Sweden
3320 280 2004 236 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 240 455 192 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 186 172 134 BT Ignite European Backbone
5515 185 778 146 Sonera Solution Autonomous Sy
3215 179 688 90 France Telecom Transpac
786 175 1841 175 The JANET IP Service
8708 161 111 155 Romania Data Systems S.A.
3303 146 557 141 Swisscom Ltd
6664 136 10 101 TELECOM ITALIA
25186 135 178 96 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
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 237 351 127 UniNet S.A. de C.V.
7303 206 41 48 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 129 205 93 AVANTEL, S.A.
10620 123 8 26 TVCABLE BOGOTA
6147 108 70 19 Telefonica Del Peru
11340 103 3 29 Red Universitaria Nacional
11992 86 24 32 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 66 7 22 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 250 632 219 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 1356 415 AT&T
6197 646 404 BellSouth Network Solutions,
7843 533 397 Adelphia Corp.
6198 570 374 BellSouth Network Solutions,
3908 814 355 Supernet, Inc.
4755 390 322 Videsh Sanchar Nigam Ltd. Aut
27364 316 293 Armstrong Cable Services
5668 310 293 Century Telephone
4355 396 290 EarthLink, Inc.
209 731 285 Qwest
22909 304 284 Comcast Cable Corporation
1221 968 283 Telstra Pty Ltd
22773 296 279 Cox Communications, Inc. Atla
6347 347 267 SAVVIS Communications Corpora
4134 368 262 Data Communications Bureau
9583 269 258 Satyam Infoway Ltd.,
1239 924 257 Sprint
376 361 246 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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 /8:18 /9:4 /10:6 /11:12 /12:55
/13:98 /14:268 /15:472 /16:7446 /17:1784 /18:3222
/19:8561 /20:9072 /21:6653 /22:9719 /23:10874 /24:71004
/25:169 /26:215 /27:158 /28:71 /29:25 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 701 707 Covad Communications
3908 514 814 Supernet, Inc.
6197 502 646 BellSouth Network Solutions,
7018 483 1356 AT&T
701 445 1447 UUNET Technologies, Inc.
6198 441 570 BellSouth Network Solutions,
702 421 700 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 346 538 Charter Communications
1239 325 924 Sprint
209 314 731 Qwest
27364 310 316 Armstrong Cable Services
3356 292 606 Level 3 Communications, LLC
5668 276 310 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 222 280 Deutsche Telekom AG
4355 221 396 EarthLink, Inc.
10753 217 265 XCOM Technologies, INC.
6517 210 234 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:722 13:1 15:6 16:1 17:2
20:7 24:821 25:1 32:82 34:1 38:51
40:23 43:1 44:2 55:1 57:14 61:334
62:449 63:1864 64:1816 65:1936 66:2171 67:284
68:397 69:291 80:423 81:165 82:77 128:214
129:157 130:63 131:83 132:18 134:168 135:10
136:182 137:120 138:131 139:48 140:176 141:138
142:102 143:49 144:60 145:36 146:281 147:67
148:304 149:79 150:121 151:78 152:217 153:59
154:1 155:130 156:64 157:60 158:139 159:141
160:46 161:68 162:361 163:67 164:319 165:150
166:100 167:310 168:179 169:96 170:316 171:9
192:5451 193:2430 194:2041 195:1321 196:483 198:3602
199:2832 200:3068 201:4 202:4107 203:5321 204:2990
205:2043 206:2283 207:2602 208:2510 209:2798 210:949
211:394 212:968 213:940 214:17 215:21 216:3296
217:786 218:116 219:42 220:113 221:13 222:1
End of report
