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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129966
Prefixes after maximum aggregation: 81149
Unique aggregates announced to Internet: 62611
Total ASes present in the Internet Routing Table: 16093
Origin-only ASes present in the Internet Routing Table: 13952
Origin ASes announcing only one prefix: 6380
Transit ASes present in the Internet Routing Table: 2141
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1234708100
Equivalent to 73 /8s, 152 /16s and 38 /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: 57630
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23061
Total APNIC prefixes after maximum aggregation: 12905
Prefixes being announced from the APNIC address blocks: 21505
Unique aggregates announced from the APNIC address blocks: 12451
APNIC Region origin ASes present in the Internet Routing Table: 1930
APNIC Region origin ASes announcing only one prefix: 565
APNIC Region transit ASes present in the Internet Routing Table: 311
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 124214016
Equivalent to 7 /8s, 103 /16s and 91 /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: 77323
Total ARIN prefixes after maximum aggregation: 48517
Prefixes being announced from the ARIN address blocks: 60086
Unique aggregates announced from the ARIN address blocks: 20878
ARIN Region origin ASes present in the Internet Routing Table: 8709
ARIN Region origin ASes announcing only one prefix: 3021
ARIN Region transit ASes present in the Internet Routing Table: 846
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 207834784
Equivalent to 12 /8s, 99 /16s and 78 /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: 22911
Total RIPE prefixes after maximum aggregation: 16757
Prefixes being announced from the RIPE address blocks: 19785
Unique aggregates announced from the RIPE address blocks: 13061
RIPE Region origin ASes present in the Internet Routing Table: 4927
RIPE Region origin ASes announcing only one prefix: 2659
RIPE Region transit ASes present in the Internet Routing Table: 876
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 138470400
Equivalent to 8 /8s, 64 /16s and 228 /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: 5568
Total LACNIC prefixes after maximum aggregation: 2273
Prefixes being announced from the LACNIC address blocks: 5065
Unique aggregates announced from the LACNIC address blocks: 3242
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: 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: 13338624
Equivalent to 0 /8s, 203 /16s and 136 /24s
Percentage of available LACNIC address space announced: 39.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1099
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 712
Unique aggregates announced from the AfriNIC address blocks: 547
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 31
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: 1739264
Equivalent to 0 /8s, 26 /16s and 138 /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 965 1109 682 Telstra Pty Ltd
4755 389 133 67 Videsh Sanchar Nigam Ltd. Aut
4134 368 2293 106 Data Communications Bureau
2907 367 1879 344 SINET Japan
703 332 356 267 UUNET
2764 297 289 257 connect.com.au pty ltd
17557 289 20 148 Pakistan Telecom
17676 275 4060 36 XTAGE CORPORATION
9583 270 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 202 70 117 COMindico Australia
9929 192 160 36 China Netcom Corp.
9443 187 72 83 Primus Telecommunications
9498 187 21 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 1445 8668 1000 UUNET Technologies, Inc.
7018 1363 7049 945 AT&T
1239 914 3052 661 Sprint
209 814 2496 487 Qwest
3908 745 1330 424 Supernet, Inc.
18566 712 176 8 Covad Communications
4323 680 576 196 Time Warner Communications, I
6197 646 461 242 BellSouth Network Solutions,
3356 607 10817 504 Level 3 Communications, LLC
6198 571 321 197 BellSouth Network Solutions,
20115 538 278 304 Charter Communications
7843 530 480 136 Adelphia Corp.
852 516 1123 409 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
690 410 59 275 Merit Network
4355 396 331 106 EarthLink, Inc.
705 393 183 237 UUNET Technologies, Inc.
2386 386 526 201 AT&T Data Communications Serv
7132 385 6814 347 Southwestern Bell Internet Se
376 360 359 115 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 310 1169 288 TeliaNet Sweden
3320 279 2004 236 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 238 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
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 160 111 154 Romania Data Systems S.A.
3303 146 557 141 Swisscom Ltd
719 140 288 105 LANLINK autonomous system
25186 135 178 96 France Telecom Transpac's Tra
6664 134 11 99 TELECOM ITALIA
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
2856 117 1294 108 BTnet UK Regional network
3269 117 910 64 TELECOM ITALIA
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 198 41 53 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 122 8 26 TVCABLE BOGOTA
6147 111 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 59 250 39 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 86 7 22 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 712 704 Covad Communications
4323 680 484 Time Warner Communications, I
7018 1363 418 AT&T
6197 646 404 BellSouth Network Solutions,
7843 530 394 Adelphia Corp.
6198 571 374 BellSouth Network Solutions,
209 814 327 Qwest
4755 389 322 Videsh Sanchar Nigam Ltd. Aut
3908 745 321 Supernet, Inc.
27364 316 293 Armstrong Cable Services
5668 310 293 Century Telephone
4355 396 290 EarthLink, Inc.
22909 305 284 Comcast Cable Corporation
1221 965 283 Telstra Pty Ltd
22773 296 279 Cox Communications, Inc. Atla
6347 346 266 SAVVIS Communications Corpora
4134 368 262 Data Communications Bureau
9583 270 259 Satyam Infoway Ltd.,
1239 914 253 Sprint
376 360 245 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
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
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 /16:7448 /17:1783 /18:3223
/19:8582 /20:9095 /21:6669 /22:9702 /23:10867 /24:70931
/25:170 /26:221 /27:159 /28:67 /29:23 /30:50
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 706 712 Covad Communications
6197 502 646 BellSouth Network Solutions,
7018 490 1363 AT&T
3908 465 745 Supernet, Inc.
701 445 1445 UUNET Technologies, Inc.
6198 442 571 BellSouth Network Solutions,
702 421 700 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
209 349 814 Qwest
20115 346 538 Charter Communications
1239 324 914 Sprint
27364 310 316 Armstrong Cable Services
3356 293 607 Level 3 Communications, LLC
5668 276 310 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 221 279 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 38:51 40:23
43:1 44:2 55:1 57:14 61:333 62:454
63:1859 64:1817 65:1931 66:2190 67:284 68:396
69:294 80:423 81:162 82:83 128:157 129:157
130:62 131:81 132:18 134:138 135:10 136:180
137:120 138:131 139:48 140:177 141:138 142:101
143:49 144:60 145:36 146:281 147:67 148:303
149:79 150:121 151:78 152:212 153:59 154:1
155:130 156:64 157:60 158:141 159:142 160:46
161:68 162:361 163:66 164:320 165:151 166:100
167:311 168:179 169:96 170:316 171:9 192:5448
193:2430 194:2022 195:1326 196:506 198:3599 199:2826
200:3073 201:3 202:4093 203:5320 204:2987 205:2046
206:2285 207:2611 208:2517 209:2804 210:950 211:392
212:967 213:939 214:17 215:21 216:3293 217:782
218:116 219:43 220:113 221:14 222:1
End of report
