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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131961
Prefixes after maximum aggregation: 81109
Unique aggregates announced to Internet: 63584
Total ASes present in the Internet Routing Table: 16506
Origin-only ASes present in the Internet Routing Table: 14319
Origin ASes announcing only one prefix: 6602
Transit ASes present in the Internet Routing Table: 2187
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: 30
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1280384612
Equivalent to 76 /8s, 81 /16s and 30 /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: 58297
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24439
Total APNIC prefixes after maximum aggregation: 13111
Prefixes being announced from the APNIC address blocks: 22885
Unique aggregates announced from the APNIC address blocks: 12968
APNIC Region origin ASes present in the Internet Routing Table: 1976
APNIC Region origin ASes announcing only one prefix: 588
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: 15
Number of APNIC addresses announced to Internet: 134703744
Equivalent to 8 /8s, 7 /16s and 106 /24s
Percentage of available APNIC address space announced: 72.6
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: 77270
Total ARIN prefixes after maximum aggregation: 47868
Prefixes being announced from the ARIN address blocks: 59827
Unique aggregates announced from the ARIN address blocks: 20804
ARIN Region origin ASes present in the Internet Routing Table: 8872
ARIN Region origin ASes announcing only one prefix: 3124
ARIN Region transit ASes present in the Internet Routing Table: 846
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 214992544
Equivalent to 12 /8s, 208 /16s and 134 /24s
Percentage of available ARIN address space announced: 71.2
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
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: 23663
Total RIPE prefixes after maximum aggregation: 17238
Prefixes being announced from the RIPE address blocks: 20501
Unique aggregates announced from the RIPE address blocks: 13600
RIPE Region origin ASes present in the Internet Routing Table: 5129
RIPE Region origin ASes announcing only one prefix: 2759
RIPE Region transit ASes present in the Internet Routing Table: 901
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 149558400
Equivalent to 8 /8s, 234 /16s and 20 /24s
Percentage of available RIPE address space announced: 68.6
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: 5440
Total LACNIC prefixes after maximum aggregation: 2217
Prefixes being announced from the LACNIC address blocks: 5022
Unique aggregates announced from the LACNIC address blocks: 3141
LACNIC Region origin ASes present in the Internet Routing Table: 367
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: 13
Number of LACNIC addresses announced to Internet: 14022656
Equivalent to 0 /8s, 213 /16s and 248 /24s
Percentage of available LACNIC address space announced: 41.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1144
Total AfriNIC prefixes after maximum aggregation: 675
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 907 1101 648 Telstra Pty Ltd
4134 667 2457 116 Data Communications Bureau
4766 408 2904 241 Korea Internet Exchange for "
2907 360 1846 337 SINET Japan
9443 344 69 79 Primus Telecommunications
703 336 372 260 UUNET
17557 320 23 155 Pakistan Telecom
9583 296 44 11 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 287 289 236 connect.com.au pty ltd
7474 271 305 213 Optus Communications Pty Ltd
4538 249 1811 21 China Education and Research
9929 218 154 30 China Netcom Corp.
4755 216 130 59 Videsh Sanchar Nigam Ltd. Aut
9942 216 69 128 COMindico Australia
9800 214 347 55 CHINA UNICOM
9498 183 46 35 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
4739 146 60 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1404 8678 971 UUNET Technologies, Inc.
7018 1387 7030 961 AT&T
1239 944 3089 660 Sprint
3356 766 10926 611 Level 3 Communications, LLC
6197 730 448 215 BellSouth Network Solutions,
209 723 3533 505 Qwest
18566 681 176 8 Covad Communications
4323 675 591 203 Time Warner Communications, I
20115 601 330 337 Charter Communications
6198 590 381 227 BellSouth Network Solutions,
7843 509 551 122 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 452 7418 310 Southwestern Bell Internet Se
2386 418 544 219 AT&T Data Communications Serv
19029 401 169 257 New Edge Networks
690 398 58 268 Merit Network
4355 392 323 101 EarthLink, Inc.
376 383 359 114 Reseau Interordinateurs Scien
27364 381 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 691 2074 574 UUNET - Commercial IP service
3301 334 1175 315 TeliaNet Sweden
3320 279 1972 230 Deutsche Telekom AG
8220 271 411 256 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 235 288 105 LANLINK autonomous system
1257 224 504 190 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 189 425 187 Song Networks
786 175 1826 175 The JANET IP Service
5515 169 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 165 111 157 Romania Data Systems S.A.
3215 152 790 69 France Telecom Transpac
5400 139 223 128 BT Ignite European Backbone
3303 138 557 138 Swisscom Ltd
12302 131 18 35 MobiFon S.A.
3269 122 1004 64 TELECOM ITALIA
2856 119 1294 109 BTnet UK Regional network
6746 105 17 94 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 354 121 66 ImpSat
8151 244 350 126 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 141 52 26 Telecom Argentina Stet-France
6505 133 90 93 Global One Communicaoes Ltda
6503 128 220 93 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 71 18 9 Red de Interconexion Universi
11992 70 25 29 Integrated Systems
11311 68 7 22 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 ANDINATEL S.A.
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 32 2 1 ARN Network
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
12455 22 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
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 667 551 Data Communications Bureau
6197 730 515 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1387 426 AT&T
7843 509 387 Adelphia Corp.
6198 590 363 BellSouth Network Solutions,
27364 381 358 Armstrong Cable Services
22909 331 313 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 331 301 Cox Communications, Inc. Atla
4355 392 291 EarthLink, Inc.
6140 354 288 ImpSat
9583 296 285 Satyam Infoway Ltd.,
1239 944 284 Sprint
376 383 269 Reseau Interordinateurs Scien
9443 344 265 Primus Telecommunications
20115 601 264 Charter Communications
1221 907 259 Telstra Pty Ltd
17676 295 257 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
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
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 /8:19 /9:4 /10:6 /11:15 /12:57
/13:105 /14:282 /15:500 /16:7541 /17:1850 /18:3437
/19:8901 /20:9351 /21:6718 /22:9455 /23:11021 /24:71944
/25:198 /26:297 /27:171 /28:28 /29:7 /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 577 730 BellSouth Network Solutions,
7018 505 1387 AT&T
6198 441 590 BellSouth Network Solutions,
701 422 1404 UUNET Technologies, Inc.
702 420 691 UUNET - Commercial IP service
3356 398 766 Level 3 Communications, LLC
7066 397 503 Virginia Polytechnic Institut
20115 381 601 Charter Communications
27364 374 381 Armstrong Cable Services
690 361 398 Merit Network
1239 329 944 Sprint
5668 283 320 Century Telephone
19029 262 401 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 235 408 Korea Internet Exchange for "
3320 227 279 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 218 242 Yipes Communications, Inc.
4355 215 392 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:759 13:1 15:6 16:1 17:3
20:7 24:876 32:83 38:44 40:26 44:2
55:1 56:1 57:13 61:349 62:454 63:1820
64:1841 65:1821 66:2213 67:258 68:637 69:369
80:456 81:190 82:76 128:142 129:261 130:70
131:79 132:17 134:177 135:16 136:128 137:115
138:148 139:40 140:158 141:132 142:104 143:48
144:84 145:39 146:291 147:74 148:291 149:85
150:123 151:61 152:213 153:61 154:1 155:131
156:66 157:56 158:139 159:142 160:46 161:51
162:369 163:69 164:314 165:167 166:104 167:218
168:178 169:96 170:306 171:8 192:5510 193:2537
194:2009 195:1311 196:517 198:3632 199:2831 200:2973
201:7 202:4339 203:5385 204:3027 205:2025 206:2275
207:2587 208:2431 209:2863 210:1026 211:418 212:910
213:1004 214:23 215:25 216:3376 217:801 218:115
219:83 220:157 221:18 222:1
End of report
