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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 18 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131788
Prefixes after maximum aggregation: 81051
Unique aggregates announced to Internet: 63578
Total ASes present in the Internet Routing Table: 16473
Origin-only ASes present in the Internet Routing Table: 14305
Origin ASes announcing only one prefix: 6586
Transit ASes present in the Internet Routing Table: 2168
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 30
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1279305828
Equivalent to 76 /8s, 64 /16s and 168 /24s
Percentage of available address space announced: 34.5
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58093
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24432
Total APNIC prefixes after maximum aggregation: 13096
Prefixes being announced from the APNIC address blocks: 22908
Unique aggregates announced from the APNIC address blocks: 12938
APNIC Region origin ASes present in the Internet Routing Table: 1975
APNIC Region origin ASes announcing only one prefix: 587
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 134349696
Equivalent to 8 /8s, 2 /16s and 3 /24s
Percentage of available APNIC address space announced: 72.4
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: 77229
Total ARIN prefixes after maximum aggregation: 47900
Prefixes being announced from the ARIN address blocks: 59775
Unique aggregates announced from the ARIN address blocks: 20882
ARIN Region origin ASes present in the Internet Routing Table: 8858
ARIN Region origin ASes announcing only one prefix: 3123
ARIN Region transit ASes present in the Internet Routing Table: 842
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 214823584
Equivalent to 12 /8s, 205 /16s and 242 /24s
Percentage of available ARIN address space announced: 71.1
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: 23546
Total RIPE prefixes after maximum aggregation: 17166
Prefixes being announced from the RIPE address blocks: 20387
Unique aggregates announced from the RIPE address blocks: 13516
RIPE Region origin ASes present in the Internet Routing Table: 5109
RIPE Region origin ASes announcing only one prefix: 2744
RIPE Region transit ASes present in the Internet Routing Table: 890
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 149180288
Equivalent to 8 /8s, 228 /16s and 79 /24s
Percentage of available RIPE address space announced: 68.4
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: 5425
Total LACNIC prefixes after maximum aggregation: 2213
Prefixes being announced from the LACNIC address blocks: 5008
Unique aggregates announced from the LACNIC address blocks: 3130
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 105
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: 12
Number of LACNIC addresses announced to Internet: 13958912
Equivalent to 0 /8s, 212 /16s and 255 /24s
Percentage of available LACNIC address space announced: 41.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1150
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 736
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: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1758464
Equivalent to 0 /8s, 26 /16s and 213 /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 905 1097 650 Telstra Pty Ltd
4134 695 2413 110 Data Communications Bureau
4766 409 2904 242 Korea Internet Exchange for "
2907 362 1847 339 SINET Japan
9443 344 69 79 Primus Telecommunications
703 338 372 262 UUNET
17557 315 22 154 Pakistan Telecom
9583 295 44 11 Satyam Infoway Ltd.,
17676 293 4316 39 XTAGE CORPORATION
2764 287 289 236 connect.com.au pty ltd
7474 272 305 214 Optus Communications Pty Ltd
4538 249 1811 21 China Education and Research
4755 223 130 58 Videsh Sanchar Nigam Ltd. Aut
9929 218 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9942 214 69 127 COMindico Australia
9498 184 46 35 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 153 117 58 Beijing Dian-Xin-Tong Network
7633 148 23 40 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1404 8678 971 UUNET Technologies, Inc.
7018 1385 7030 965 AT&T
1239 943 3090 660 Sprint
6197 774 484 252 BellSouth Network Solutions,
3356 763 10925 608 Level 3 Communications, LLC
209 721 3530 505 Qwest
18566 681 176 8 Covad Communications
4323 675 591 203 Time Warner Communications, I
20115 600 330 336 Charter Communications
6198 546 346 197 BellSouth Network Solutions,
7843 510 551 122 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 453 7402 311 Southwestern Bell Internet Se
2386 420 544 221 AT&T Data Communications Serv
19029 401 169 257 New Edge Networks
690 398 58 268 Merit Network
4355 391 323 101 EarthLink, Inc.
376 383 359 114 Reseau Interordinateurs Scien
27364 379 28 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 689 2076 572 UUNET - Commercial IP service
3301 335 1175 316 TeliaNet Sweden
3320 282 1972 232 Deutsche Telekom AG
8220 267 410 252 COLT Internet - International
1257 243 504 189 SWIPnet Swedish IP Network
680 241 2027 237 DFN-IP service G-WiN
719 234 288 104 LANLINK autonomous system
13083 215 51 8 Mannesmann Datenverarbeitung
3246 189 425 187 Song Networks
786 175 1826 175 The JANET IP Service
5515 172 762 134 Sonera Solution Autonomous Sy
25186 166 201 108 France Telecom Transpac's Tra
8708 165 111 157 Romania Data Systems S.A.
3215 150 786 68 France Telecom Transpac
3303 138 557 138 Swisscom Ltd
5400 137 224 127 BT Ignite European Backbone
12302 131 18 35 MobiFon S.A.
3269 120 972 64 TELECOM ITALIA
2856 119 1294 109 BTnet UK Regional network
6746 106 17 95 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 121 71 ImpSat
8151 239 336 123 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
16814 155 10 5 NSS, S.A.
7303 142 53 23 Telecom Argentina Stet-France
6505 133 90 93 Global One Communicaoes Ltda
6503 127 220 92 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 112 3 33 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 70 18 9 Red de Interconexion Universi
11311 68 7 22 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
11992 66 24 30 Integrated Systems
14420 62 4 23 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 60 5 27 TELECOMMUNICATIONS OF JAMAICA
1916 59 247 39 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 103 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 26 3 4 UUNET Kenya
16637 26 9 19 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
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 681 673 Covad Communications
4134 695 585 Data Communications Bureau
6197 774 522 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1385 420 AT&T
7843 510 388 Adelphia Corp.
27364 379 355 Armstrong Cable Services
6198 546 349 BellSouth Network Solutions,
22909 328 311 Comcast Cable Corporation
5668 321 305 Century Telephone
22773 331 301 Cox Communications, Inc. Atla
4355 391 290 EarthLink, Inc.
9583 295 284 Satyam Infoway Ltd.,
1239 943 283 Sprint
6140 352 281 ImpSat
376 383 269 Reseau Interordinateurs Scien
9443 344 265 Primus Telecommunications
20115 600 264 Charter Communications
1221 905 255 Telstra Pty Ltd
17676 293 254 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
65531 PRIVATE 203.115.82.0/23 23682 Broadband Pacenet In
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 4766 Korea Internet Excha
23861 UNALLOCATED 210.93.47.0/24 4766 Korea Internet Excha
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 /8:19 /9:4 /10:6 /11:15 /12:57
/13:105 /14:282 /15:496 /16:7549 /17:1834 /18:3441
/19:8899 /20:9348 /21:6705 /22:9448 /23:10998 /24:71836
/25:191 /26:298 /27:170 /28:28 /29:5 /30:43
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 665 681 Covad Communications
6197 619 774 BellSouth Network Solutions,
7018 505 1385 AT&T
701 422 1404 UUNET Technologies, Inc.
702 420 689 UUNET - Commercial IP service
6198 399 546 BellSouth Network Solutions,
7066 397 503 Virginia Polytechnic Institut
3356 394 763 Level 3 Communications, LLC
20115 380 600 Charter Communications
27364 373 379 Armstrong Cable Services
690 361 398 Merit Network
1239 331 943 Sprint
5668 284 321 Century Telephone
19029 262 401 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 236 409 Korea Internet Exchange for "
3320 229 282 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 219 243 Yipes Communications, Inc.
4355 215 391 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:756 13:1 15:6 16:1 17:3
20:7 24:874 32:81 38:44 40:26 44:2
55:1 56:1 57:13 61:350 62:449 63:1822
64:1826 65:1820 66:2185 67:256 68:635 69:366
80:455 81:193 82:63 128:144 129:261 130:69
131:79 132:17 134:175 135:16 136:128 137:115
138:126 139:39 140:158 141:132 142:102 143:48
144:86 145:39 146:291 147:74 148:319 149:85
150:119 151:61 152:212 153:61 154:1 155:131
156:62 157:56 158:138 159:144 160:46 161:51
162:369 163:69 164:332 165:167 166:104 167:216
168:176 169:96 170:304 171:8 192:5534 193:2524
194:1996 195:1291 196:517 198:3633 199:2828 200:2961
201:7 202:4357 203:5377 204:3023 205:2019 206:2275
207:2588 208:2430 209:2893 210:1021 211:417 212:884
213:992 214:23 215:25 216:3378 217:800 218:118
219:83 220:157 221:19 222:1
End of report
