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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 28 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130701
Prefixes after maximum aggregation: 80593
Unique aggregates announced to Internet: 62610
Total ASes present in the Internet Routing Table: 16232
Origin-only ASes present in the Internet Routing Table: 14094
Origin ASes announcing only one prefix: 6453
Transit ASes present in the Internet Routing Table: 2138
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
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: 13
Number of addresses announced to Internet: 1264925924
Equivalent to 75 /8s, 101 /16s and 60 /24s
Percentage of available address space announced: 34.1
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57791
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23810
Total APNIC prefixes after maximum aggregation: 12981
Prefixes being announced from the APNIC address blocks: 22215
Unique aggregates announced from the APNIC address blocks: 12599
APNIC Region origin ASes present in the Internet Routing Table: 1949
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 314
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 131258880
Equivalent to 7 /8s, 210 /16s and 218 /24s
Percentage of available APNIC address space announced: 70.7
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: 77176
Total ARIN prefixes after maximum aggregation: 47846
Prefixes being announced from the ARIN address blocks: 59830
Unique aggregates announced from the ARIN address blocks: 20711
ARIN Region origin ASes present in the Internet Routing Table: 8769
ARIN Region origin ASes announcing only one prefix: 3061
ARIN Region transit ASes present in the Internet Routing Table: 830
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 210507424
Equivalent to 12 /8s, 140 /16s and 22 /24s
Percentage of available ARIN address space announced: 73.8
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: 23029
Total RIPE prefixes after maximum aggregation: 16852
Prefixes being announced from the RIPE address blocks: 19872
Unique aggregates announced from the RIPE address blocks: 13261
RIPE Region origin ASes present in the Internet Routing Table: 4988
RIPE Region origin ASes announcing only one prefix: 2677
RIPE Region transit ASes present in the Internet Routing Table: 879
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 142354048
Equivalent to 8 /8s, 124 /16s and 38 /24s
Percentage of available RIPE address space announced: 65.3
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5572
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 5070
Unique aggregates announced from the LACNIC address blocks: 3062
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 107
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: 14
Number of LACNIC addresses announced to Internet: 13536512
Equivalent to 0 /8s, 206 /16s and 141 /24s
Percentage of available LACNIC address space announced: 40.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1112
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1757184
Equivalent to 0 /8s, 26 /16s and 208 /24s
Percentage of available AfriNIC address space announced: 10.5
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 960 1119 680 Telstra Pty Ltd
4134 398 2440 109 Data Communications Bureau
2907 369 1863 345 SINET Japan
4755 345 131 56 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 327 356 259 UUNET
17557 301 21 154 Pakistan Telecom
17676 283 4188 33 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
9583 267 44 11 Satyam Infoway Ltd.,
4766 264 2896 191 Korea Internet Exchange for "
7474 263 306 214 Optus Communications Pty Ltd
4538 247 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9929 217 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 202 68 117 COMindico Australia
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 143 60 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1428 8667 985 UUNET Technologies, Inc.
7018 1375 7002 950 AT&T
1239 951 3093 667 Sprint
209 861 3449 537 Qwest
6197 765 438 214 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 711 10891 564 Level 3 Communications, LLC
4323 675 608 203 Time Warner Communications, I
6198 616 374 226 BellSouth Network Solutions,
20115 572 316 328 Charter Communications
7843 523 502 123 Adelphia Corp.
852 519 1107 408 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 446 7309 312 Southwestern Bell Internet Se
19029 424 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 385 196 240 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 686 2091 569 UUNET - Commercial IP service
3301 306 1170 290 TeliaNet Sweden
3320 277 1988 230 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 233 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 183 440 181 Song Networks
786 175 1826 175 The JANET IP Service
5400 175 175 140 BT Ignite European Backbone
5515 175 778 137 Sonera Solution Autonomous Sy
8708 162 111 156 Romania Data Systems S.A.
3215 161 695 81 France Telecom Transpac
25186 160 181 113 France Telecom Transpac's Tra
3303 143 541 137 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 120 943 65 TELECOM ITALIA
2856 117 1294 109 BTnet UK Regional network
6746 105 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 120 66 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 183 43 24 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
6147 126 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 85 24 31 Integrated Systems
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
8065 75 10 19 Empresas Publicas de Medellin
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
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 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 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
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 16 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 729 721 Covad Communications
6197 765 551 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1375 425 AT&T
7843 523 400 Adelphia Corp.
6198 616 390 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 861 324 Qwest
22909 317 306 Comcast Cable Corporation
5668 312 293 Century Telephone
4134 398 289 Data Communications Bureau
4355 390 289 EarthLink, Inc.
4755 345 289 Videsh Sanchar Nigam Ltd. Aut
22773 312 285 Cox Communications, Inc. Atla
1239 951 284 Sprint
1221 960 280 Telstra Pty Ltd
6140 343 277 ImpSat
9583 267 256 Satyam Infoway Ltd.,
9443 336 255 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
192.172.0.0/19 568 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 /11:14 /12:57
/13:99 /14:276 /15:481 /16:7504 /17:1818 /18:3328
/19:8690 /20:9169 /21:6652 /22:9374 /23:10934 /24:71516
/25:182 /26:232 /27:161 /28:72 /29:22 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 619 765 BellSouth Network Solutions,
7018 502 1375 AT&T
6198 477 616 BellSouth Network Solutions,
701 435 1428 UUNET Technologies, Inc.
702 413 686 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
3356 363 711 Level 3 Communications, LLC
690 361 400 Merit Network
20115 357 572 Charter Communications
27364 348 354 Armstrong Cable Services
1239 331 951 Sprint
209 295 861 Qwest
5668 278 312 Century Telephone
19029 274 424 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 219 277 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 214 239 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:870 32:82 38:43 40:23 43:1
44:2 55:1 56:1 57:12 61:346 62:456
63:1835 64:1814 65:1806 66:2229 67:277 68:637
69:341 80:444 81:168 82:37 128:156 129:258
130:68 131:81 132:17 134:182 135:16 136:183
137:113 138:119 139:46 140:169 141:140 142:110
143:47 144:63 145:41 146:289 147:71 148:315
149:86 150:118 151:60 152:209 153:58 154:1
155:128 156:60 157:60 158:137 159:136 160:46
161:48 162:363 163:74 164:329 165:173 166:104
167:212 168:179 169:94 170:312 171:9 192:5482
193:2478 194:2005 195:1304 196:514 198:3636 199:2830
200:3030 201:3 202:4204 203:5338 204:2946 205:2031
206:2271 207:2631 208:2480 209:2813 210:979 211:420
212:876 213:977 214:23 215:24 216:3424 217:774
218:119 219:86 220:120 221:16
End of report
