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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 07 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 96028
Prefixes after maximum aggregation: 60299
Unique aggregates announced to Internet: 49520
Total ASes present in the Internet Routing Table: 13490
Origin-only ASes present in the Internet Routing Table: 11588
Origin ASes announcing only one prefix: 5805
Transit ASes present in the Internet Routing Table: 1902
Transit-only ASes present in the Internet Routing Table: 199
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1036701060
Equivalent to 61 /8s, 202 /16s and 205 /24s
Percentage of available address space announced: 28.0
Percentage of allocated address space announced: 48.8
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 38337
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17227
Total APNIC prefixes after maximum aggregation: 9767
Prefixes being announced from the APNIC address blocks: 15685
Unique aggregates announced from the APNIC address blocks: 9803
APNIC Region origin ASes present in the Internet Routing Table: 1588
APNIC Region origin ASes announcing only one prefix: 547
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 39458816
Equivalent to 2 /8s, 90 /16s and 24 /24s
Percentage of available APNIC address space announced: 21.3
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: 55970
Total ARIN prefixes after maximum aggregation: 34894
Prefixes being announced from the ARIN address blocks: 38267
Unique aggregates announced from the ARIN address blocks: 14580
ARIN Region origin ASes present in the Internet Routing Table: 7465
ARIN Region origin ASes announcing only one prefix: 3001
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 144159808
Equivalent to 8 /8s, 151 /16s and 180 /24s
Percentage of available ARIN address space announced: 50.5
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, 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: 16814
Total RIPE prefixes after maximum aggregation: 13055
Prefixes being announced from the RIPE address blocks: 13332
Unique aggregates announced from the RIPE address blocks: 9059
RIPE Region origin ASes present in the Internet Routing Table: 3797
RIPE Region origin ASes announcing only one prefix: 2121
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 97728640
Equivalent to 5 /8s, 211 /16s and 56 /24s
Percentage of available RIPE address space announced: 44.8
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: 5085
Total LACNIC prefixes after maximum aggregation: 1969
Prefixes being announced from the LACNIC address blocks: 5091
Unique aggregates announced from the LACNIC address blocks: 3092
LACNIC Region origin ASes present in the Internet Routing Table: 362
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13565952
Equivalent to 0 /8s, 207 /16s and 0 /24s
Percentage of available LACNIC address space announced: 40.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 930
Total AfriNIC prefixes after maximum aggregation: 614
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 555
AfriNIC Region origin ASes present in the Internet Routing Table: 79
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1756928
Equivalent to 0 /8s, 26 /16s and 207 /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 920 1116 660 Telstra Pty Ltd
2907 359 1840 336 SINET Japan
703 311 301 246 UUNET
4755 308 98 58 Videsh Sanchar Nigam Ltd. Aut
17557 291 21 151 Pakistan Telecom
2764 268 224 236 connect.com.au pty ltd
7474 261 306 211 Optus Communications Pty Ltd
4134 212 791 50 Data Communications Bureau
9443 207 25 76 Primus Telecommunications
9498 173 22 31 BHARTI BT INTERNET LTD.
9942 173 52 121 COMindico Australia
17642 148 39 109 RequestDSL BGP AS# for Sydney
4739 140 60 130 Commerical Internet eXchange
7633 137 23 38 Software Technology Parks of
4766 134 436 88 Korea Internet Exchange for "
9238 124 8 27 TATA ISP
4795 114 17 42 INDOSATNET-ASN
17536 112 8 43 Prodidgy Telecommunications
4538 111 458 8 China Education and Research
4657 111 71 24 Starhub Internet, Singapore
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1249 7031 849 UUNET Technologies, Inc.
7018 1220 6767 834 AT&T
1239 830 2132 566 Sprint
209 742 3083 443 Qwest
18566 731 176 7 Covad Communications
6197 579 377 134 BellSouth Network Solutions,
3356 572 10408 452 Level 3 Communications, LLC
20115 548 315 317 Charter Communications
7843 510 495 115 Adelphia Corp.
852 426 765 351 Telus Advanced Communications
7132 400 6848 271 Southwestern Bell Internet Se
690 396 58 267 Merit Network
6198 375 308 145 BellSouth Network Solutions,
2386 361 507 196 AT&T Data Communications Serv
27364 348 27 20 Armstrong Cable Services
7066 345 186 136 Virginia Polytechnic Institut
4323 335 480 163 Time Warner Communications, I
22909 317 693 12 Comcast Cable Corporation
22773 311 656 28 Cox Communications, Inc. Atla
568 287 11587 236 DISO-UNRRA
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 600 1750 509 UUNET - Commercial IP service
3301 292 940 277 TeliaNet Sweden
3320 266 1032 217 Deutsche Telekom AG
680 231 2022 227 DFN-IP service G-WiN
1257 221 345 176 SWIPnet Swedish IP Network
8220 216 261 210 COLT Internet - International
13083 215 51 8 Mannesmann Datenverarbeitung
786 173 1808 173 The JANET IP Service
5515 171 743 133 Sonera Solution Autonomous Sy
3246 162 351 160 Song Networks
25186 159 214 117 France Telecom Transpac's Tra
3215 136 626 64 France Telecom Transpac
3303 134 472 127 Swisscom Ltd
719 131 272 102 LANLINK autonomous system
8708 131 104 127 Romania Data Systems S.A.
5400 121 131 111 BT Ignite European Backbone
2856 103 936 95 BTnet UK Regional network
3269 90 738 49 TELECOM ITALIA
137 83 637 81 GARR Italian academic and res
3292 82 617 80 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 120 66 ImpSat
8151 232 346 120 UniNet S.A. de C.V.
11172 192 73 41 Servicios Alestra S.A de C.V
7303 184 46 17 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6503 122 200 89 AVANTEL, S.A.
6147 121 76 17 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
6505 85 83 55 Global One Communicaoes Ltda
10620 85 6 13 TVCABLE BOGOTA
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11992 74 23 22 Integrated Systems
8065 71 9 15 Empresas Publicas de Medellin
4270 70 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 247 39 Fundacao de Amparo a Pesquisa
14420 59 4 19 ANDINATEL S.A.
7738 58 202 13 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 66 6 13 Internet Egypt Network
2905 60 245 53 The Internetworking Company o
2561 57 6 3 Egyptian Universities Network
3208 33 2 1 ARN Network
5713 24 93 22 Telkom SA Ltd
11569 24 27 21 satellite data networks
11845 24 5 9 Data Pro Business Online
16637 23 7 18 Johnnic e-Ventures
9129 22 2 3 UUNET Kenya
10798 18 1 12 Standard Bank of South Africa
6713 17 30 8 Itissalat Al-MAGHRIB
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
6879 11 1 3 EUnet Egypt
2609 10 8 2 Tunisia BackBone AS
12455 10 2 1 Jambonet Autonomous system
10474 9 9 8 NetActive ISP
5734 8 80 7 Telkom SA Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 731 724 Covad Communications
6197 579 445 BellSouth Network Solutions,
7843 510 395 Adelphia Corp.
7018 1220 386 AT&T
27364 348 328 Armstrong Cable Services
22909 317 305 Comcast Cable Corporation
209 742 299 Qwest
22773 311 283 Cox Communications, Inc. Atla
6140 346 280 ImpSat
1239 830 264 Sprint
1221 920 260 Telstra Pty Ltd
4755 308 250 Videsh Sanchar Nigam Ltd. Aut
25844 243 242 Skadden, Arps, Slate, Meagher
20115 548 231 Charter Communications
6198 375 230 BellSouth Network Solutions,
7066 345 209 Virginia Polytechnic Institut
13083 215 207 Mannesmann Datenverarbeitung
4355 248 206 EarthLink, Inc.
14900 227 198 US LEC Corp
14654 192 191 Wayport
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
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 /8:18 /9:3 /10:5 /11:10 /12:49
/13:75 /14:197 /15:359 /16:6435 /17:1172 /18:2050
/19:5180 /20:6382 /21:4869 /22:6717 /23:8194 /24:53831
/25:119 /26:141 /27:70 /28:59 /29:21 /30:50
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 731 Covad Communications
6197 458 579 BellSouth Network Solutions,
7018 426 1220 AT&T
702 370 600 UUNET - Commercial IP service
690 361 396 Merit Network
701 351 1249 UUNET Technologies, Inc.
27364 342 348 Armstrong Cable Services
20115 333 548 Charter Communications
3356 295 572 Level 3 Communications, LLC
1239 283 830 Sprint
7066 270 345 Virginia Polytechnic Institut
6198 266 375 BellSouth Network Solutions,
209 250 742 Qwest
25844 243 243 Skadden, Arps, Slate, Meagher
3320 217 266 Deutsche Telekom AG
13083 188 215 Mannesmann Datenverarbeitung
14654 188 192 Wayport
6140 184 346 ImpSat
7843 175 510 Adelphia Corp.
8220 168 216 COLT Internet - International
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:867 32:82 38:44 40:24 43:1
44:2 55:1 56:1 57:16 61:322 62:450
63:1851 64:1815 65:1821 66:2189 67:282 68:639
69:353 80:440 81:165 82:36 128:148 129:264
130:70 131:80 132:17 134:191 135:16 136:182
137:112 138:127 139:29 140:162 141:140 142:111
143:49 144:64 145:38 146:290 147:71 148:314
149:86 150:118 151:60 152:209 153:55 154:1
155:128 156:60 157:62 158:136 159:137 160:46
161:49 162:364 163:73 164:333 165:173 166:106
167:212 168:182 169:94 170:307 171:9 192:5481
193:2480 194:2004 195:1289 196:514 198:3631 199:2839
200:3039 201:2 202:4215 203:5347 204:2945 205:2012
206:380
End of report
