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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133177
Prefixes after maximum aggregation: 81674
Unique aggregates announced to Internet: 64324
Total ASes present in the Internet Routing Table: 16637
Origin-only ASes present in the Internet Routing Table: 14431
Origin ASes announcing only one prefix: 6664
Transit ASes present in the Internet Routing Table: 2206
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1286073764
Equivalent to 76 /8s, 167 /16s and 237 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59038
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24748
Total APNIC prefixes after maximum aggregation: 13233
Prefixes being announced from the APNIC address blocks: 23163
Unique aggregates announced from the APNIC address blocks: 13364
APNIC Region origin ASes present in the Internet Routing Table: 1993
APNIC Region origin ASes announcing only one prefix: 594
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136024960
Equivalent to 8 /8s, 27 /16s and 147 /24s
Percentage of available APNIC address space announced: 73.3
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: 77827
Total ARIN prefixes after maximum aggregation: 48156
Prefixes being announced from the ARIN address blocks: 60204
Unique aggregates announced from the ARIN address blocks: 20774
ARIN Region origin ASes present in the Internet Routing Table: 8944
ARIN Region origin ASes announcing only one prefix: 3170
ARIN Region transit ASes present in the Internet Routing Table: 869
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 216988256
Equivalent to 12 /8s, 238 /16s and 250 /24s
Percentage of available ARIN address space announced: 71.9
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23938
Total RIPE prefixes after maximum aggregation: 17398
Prefixes being announced from the RIPE address blocks: 20781
Unique aggregates announced from the RIPE address blocks: 13779
RIPE Region origin ASes present in the Internet Routing Table: 5165
RIPE Region origin ASes announcing only one prefix: 2771
RIPE Region transit ASes present in the Internet Routing Table: 889
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 151280128
Equivalent to 9 /8s, 4 /16s and 90 /24s
Percentage of available RIPE address space announced: 69.4
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: 5491
Total LACNIC prefixes after maximum aggregation: 2208
Prefixes being announced from the LACNIC address blocks: 5135
Unique aggregates announced from the LACNIC address blocks: 3271
LACNIC Region origin ASes present in the Internet Routing Table: 370
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 14
Number of LACNIC addresses announced to Internet: 14195712
Equivalent to 0 /8s, 216 /16s and 156 /24s
Percentage of available LACNIC address space announced: 42.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1171
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 741
Unique aggregates announced from the AfriNIC address blocks: 568
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /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 938 1120 661 Telstra Pty Ltd
4134 667 2491 118 Data Communications Bureau
4766 425 2905 250 Korea Internet Exchange for "
2907 359 1830 336 SINET Japan
4755 357 130 58 Videsh Sanchar Nigam Ltd. Aut
9583 347 40 90 Satyam Infoway Ltd.,
9443 345 69 80 Primus Telecommunications
703 338 374 261 UUNET
17557 325 23 158 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 280 254 233 connect.com.au pty ltd
7474 274 305 214 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 220 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 192 30 34 BHARTI BT INTERNET LTD.
4837 150 1521 99 chinanet IDC center beijing n
17964 150 118 60 Beijing Dian-Xin-Tong Network
4739 148 60 135 Commerical Internet eXchange
17642 147 39 108 RequestDSL BGP AS# for Sydney
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1398 7009 985 AT&T
701 1366 8614 964 UUNET Technologies, Inc.
1239 945 3096 659 Sprint
3356 818 10920 652 Level 3 Communications, LLC
6197 731 441 270 BellSouth Network Solutions,
209 719 3534 509 Qwest
18566 688 192 9 Covad Communications
4323 685 544 202 Time Warner Communications, I
20115 614 340 346 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
7843 506 576 128 Adelphia Corp.
852 503 1123 399 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 455 7577 314 Southwestern Bell Internet Se
2386 421 562 223 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 387 168 248 New Edge Networks
27364 382 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 684 2073 570 UUNET - Commercial IP service
3301 336 1174 315 TeliaNet Sweden
3320 284 1971 231 Deutsche Telekom AG
8220 269 411 254 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 234 288 105 LANLINK autonomous system
1257 228 506 192 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 189 431 187 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
3215 159 787 73 France Telecom Transpac
5400 145 221 130 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
6746 127 19 112 Dynamic Network Technologies,
12302 126 18 33 MobiFon S.A.
3269 125 1037 65 TELECOM ITALIA
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 121 66 ImpSat
8151 257 384 125 UniNet S.A. de C.V.
11172 207 77 44 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 137 204 92 AVANTEL, S.A.
7303 137 51 32 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 79 25 28 Integrated Systems
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 67 7 20 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 63 4 28 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
7738 59 218 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
5536 104 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 57 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 25 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15825 17 4 3 Network Computer Systems Auto
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 688 679 Covad Communications
4134 667 549 Data Communications Bureau
4323 685 483 Time Warner Communications, I
6197 731 461 BellSouth Network Solutions,
701 1366 402 UUNET Technologies, Inc.
7843 506 378 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 346 329 Century Telephone
22909 340 320 Comcast Cable Corporation
22773 342 309 Cox Communications, Inc. Atla
4755 357 299 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
6140 358 292 ImpSat
1239 945 286 Sprint
1221 938 277 Telstra Pty Ltd
20115 614 268 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 296 259 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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
192.84.205.0/24 719 LANLINK autonomous system
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 /8:20 /9:4 /10:6 /11:15 /12:58
/13:105 /14:286 /15:503 /16:7565 /17:1886 /18:3484
/19:8945 /20:9297 /21:6781 /22:9572 /23:11143 /24:72835
/25:184 /26:276 /27:153 /28:27 /29:5 /30:16
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 671 688 Covad Communications
6197 573 731 BellSouth Network Solutions,
7018 499 1398 AT&T
3356 439 818 Level 3 Communications, LLC
702 416 684 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 393 499 Virginia Polytechnic Institut
701 392 1366 UUNET Technologies, Inc.
20115 386 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 945 Sprint
5668 304 346 Century Telephone
19029 255 387 New Edge Networks
4766 247 425 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 232 284 Deutsche Telekom AG
6517 224 248 Yipes Communications, Inc.
6386 221 247 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:779 13:1 15:6 16:1 17:3
20:8 24:842 32:84 38:45 40:26 44:2
55:1 56:1 57:14 61:373 62:467 63:1819
64:1842 65:1883 66:2372 67:275 68:607 69:393
80:453 81:218 82:77 83:2 128:148 129:265
130:78 131:78 132:16 134:172 135:16 136:185
137:113 138:149 139:39 140:158 141:135 142:103
143:49 144:80 145:39 146:282 147:75 148:330
149:84 150:122 151:61 152:214 153:60 154:1
155:137 156:66 157:56 158:149 159:143 160:47
161:52 162:372 163:71 164:324 165:159 166:106
167:210 168:179 169:97 170:295 171:8 192:5526
193:2590 194:2006 195:1321 196:523 198:3635 199:2872
200:3030 201:7 202:4462 203:5476 204:3006 205:2007
206:2265 207:2596 208:2410 209:2868 210:1057 211:451
212:908 213:1030 214:23 215:26 216:3386 217:831
218:119 219:97 220:168 221:18 222:1
End of report
