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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 09 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129793
Prefixes after maximum aggregation: 80591
Unique aggregates announced to Internet: 62281
Total ASes present in the Internet Routing Table: 16150
Origin-only ASes present in the Internet Routing Table: 14014
Origin ASes announcing only one prefix: 6399
Transit ASes present in the Internet Routing Table: 2136
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1254586212
Equivalent to 74 /8s, 199 /16s and 119 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57492
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23473
Total APNIC prefixes after maximum aggregation: 12930
Prefixes being announced from the APNIC address blocks: 21861
Unique aggregates announced from the APNIC address blocks: 12575
APNIC Region origin ASes present in the Internet Routing Table: 1944
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 316
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 125131776
Equivalent to 7 /8s, 117 /16s and 92 /24s
Percentage of available APNIC address space announced: 67.4
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: 76641
Total ARIN prefixes after maximum aggregation: 47876
Prefixes being announced from the ARIN address blocks: 59431
Unique aggregates announced from the ARIN address blocks: 20500
ARIN Region origin ASes present in the Internet Routing Table: 8733
ARIN Region origin ASes announcing only one prefix: 3029
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208748448
Equivalent to 12 /8s, 113 /16s and 63 /24s
Percentage of available ARIN address space announced: 73.2
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: 23019
Total RIPE prefixes after maximum aggregation: 16827
Prefixes being announced from the RIPE address blocks: 19891
Unique aggregates announced from the RIPE address blocks: 13107
RIPE Region origin ASes present in the Internet Routing Table: 4945
RIPE Region origin ASes announcing only one prefix: 2658
RIPE Region transit ASes present in the Internet Routing Table: 875
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 140838656
Equivalent to 8 /8s, 101 /16s and 7 /24s
Percentage of available RIPE address space announced: 76.3
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5551
Total LACNIC prefixes after maximum aggregation: 2250
Prefixes being announced from the LACNIC address blocks: 5086
Unique aggregates announced from the LACNIC address blocks: 3181
LACNIC Region origin ASes present in the Internet Routing Table: 359
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: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13465600
Equivalent to 0 /8s, 205 /16s and 120 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1108
Total AfriNIC prefixes after maximum aggregation: 708
Prefixes being announced from the AfriNIC address blocks: 720
Unique aggregates announced from the AfriNIC address blocks: 555
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 31
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: 1753088
Equivalent to 0 /8s, 26 /16s and 192 /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 954 1109 681 Telstra Pty Ltd
2907 369 1880 346 SINET Japan
4134 369 2371 109 Data Communications Bureau
4755 364 131 57 Videsh Sanchar Nigam Ltd. Aut
703 331 356 264 UUNET
17557 308 22 150 Pakistan Telecom
2764 290 288 249 connect.com.au pty ltd
17676 280 4140 31 XTAGE CORPORATION
9583 269 44 11 Satyam Infoway Ltd.,
7474 266 306 212 Optus Communications Pty Ltd
9443 264 72 83 Primus Telecommunications
4766 257 2463 184 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9800 207 343 57 CHINA UNICOM
9498 205 22 29 BHARTI BT INTERNET LTD.
9942 202 69 115 COMindico Australia
9929 189 163 36 China Netcom Corp.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 145 60 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1437 8651 996 UUNET Technologies, Inc.
7018 1368 7035 948 AT&T
1239 922 3053 667 Sprint
209 874 3471 529 Qwest
18566 720 176 8 Covad Communications
4323 685 592 200 Time Warner Communications, I
6197 678 403 269 BellSouth Network Solutions,
3356 623 10803 512 Level 3 Communications, LLC
6198 577 332 196 BellSouth Network Solutions,
20115 541 280 307 Charter Communications
7843 524 484 121 Adelphia Corp.
852 514 1107 407 Telus Advanced Communications
7066 507 207 271 Virginia Polytechnic Institut
7132 500 7191 297 Southwestern Bell Internet Se
19029 409 174 275 New Edge Networks
690 400 58 270 Merit Network
2386 398 558 205 AT&T Data Communications Serv
4355 398 331 105 EarthLink, Inc.
705 389 182 239 UUNET Technologies, Inc.
376 360 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2094 578 UUNET - Commercial IP service
3301 310 1169 288 TeliaNet Sweden
3320 278 2004 235 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 136 BT Ignite European Backbone
5515 179 778 141 Sonera Solution Autonomous Sy
786 175 1826 175 The JANET IP Service
3215 164 703 83 France Telecom Transpac
8708 161 111 155 Romania Data Systems S.A.
25186 151 166 108 France Telecom Transpac's Tra
3303 145 557 139 Swisscom Ltd
719 137 288 106 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
2856 118 1294 109 BTnet UK Regional network
3269 118 911 65 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 105 101 ImpSat
8151 235 351 125 UniNet S.A. de C.V.
7303 195 42 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 127 205 91 AVANTEL, S.A.
6147 122 70 19 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 106 3 29 Red Universitaria Nacional
11992 85 24 32 Integrated Systems
8065 79 10 17 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14535 61 6 6 Techtel S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 58 262 38 Fundacao de Amparo a Pesquisa
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 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 53 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
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
15706 15 2 5 Sudatel Internet Exchange Aut
3208 14 2 1 ARN Network
12258 14 3 9 Vodacom Internet Company
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 720 712 Covad Communications
4323 685 485 Time Warner Communications, I
7018 1368 420 AT&T
6197 678 409 BellSouth Network Solutions,
7843 524 403 Adelphia Corp.
6198 577 381 BellSouth Network Solutions,
209 874 345 Qwest
27364 338 315 Armstrong Cable Services
4755 364 307 Videsh Sanchar Nigam Ltd. Aut
4355 398 293 EarthLink, Inc.
22909 312 293 Comcast Cable Corporation
5668 308 290 Century Telephone
22773 301 280 Cox Communications, Inc. Atla
1221 954 273 Telstra Pty Ltd
6347 345 266 SAVVIS Communications Corpora
4134 369 260 Data Communications Bureau
9583 269 258 Satyam Infoway Ltd.,
1239 922 255 Sprint
17676 280 249 XTAGE CORPORATION
376 360 246 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
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 /8:19 /9:4 /10:6 /11:13 /12:57
/13:96 /14:272 /15:471 /16:7448 /17:1813 /18:3235
/19:8607 /20:9148 /21:6642 /22:9486 /23:10860 /24:70846
/25:177 /26:242 /27:166 /28:71 /29:23 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 714 720 Covad Communications
6197 539 678 BellSouth Network Solutions,
7018 495 1368 AT&T
701 443 1437 UUNET Technologies, Inc.
6198 442 577 BellSouth Network Solutions,
702 417 697 UUNET - Commercial IP service
7066 399 507 Virginia Polytechnic Institut
690 361 400 Merit Network
20115 347 541 Charter Communications
27364 332 338 Armstrong Cable Services
1239 328 922 Sprint
3356 310 623 Level 3 Communications, LLC
209 308 874 Qwest
5668 274 308 Century Telephone
19029 260 409 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 220 278 Deutsche Telekom AG
4355 220 398 EarthLink, Inc.
14824 200 225 NewSouth Communications Corp.
7843 197 524 Adelphia Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:755 13:1 15:6 16:1 17:2
20:7 24:880 25:1 32:82 38:42 40:23
43:1 44:2 55:1 57:14 61:333 62:463
63:1839 64:1794 65:1794 66:2178 67:275 68:432
69:310 80:437 81:159 82:68 128:154 129:161
130:66 131:78 132:17 134:174 135:9 136:183
137:121 138:131 139:48 140:194 141:138 142:102
143:46 144:59 145:36 146:284 147:67 148:309
149:81 150:120 151:78 152:211 153:59 154:1
155:130 156:65 157:60 158:117 159:140 160:46
161:68 162:364 163:66 164:324 165:154 166:108
167:210 168:178 169:96 170:323 171:9 192:5443
193:2412 194:2042 195:1342 196:512 198:3578 199:2825
200:3038 201:3 202:4198 203:5363 204:2903 205:1999
206:2271 207:2588 208:2512 209:2797 210:955 211:390
212:914 213:978 214:13 215:18 216:3353 217:779
218:114 219:83 220:115 221:20 222:1
End of report
