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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 03 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132215
Prefixes after maximum aggregation: 81382
Unique aggregates announced to Internet: 63726
Total ASes present in the Internet Routing Table: 16560
Origin-only ASes present in the Internet Routing Table: 14386
Origin ASes announcing only one prefix: 6641
Transit ASes present in the Internet Routing Table: 2174
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 28
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: 1285576292
Equivalent to 76 /8s, 160 /16s and 86 /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: 58412
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24511
Total APNIC prefixes after maximum aggregation: 13221
Prefixes being announced from the APNIC address blocks: 22933
Unique aggregates announced from the APNIC address blocks: 13298
APNIC Region origin ASes present in the Internet Routing Table: 1987
APNIC Region origin ASes announcing only one prefix: 592
APNIC Region transit ASes present in the Internet Routing Table: 315
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 135304320
Equivalent to 8 /8s, 16 /16s and 148 /24s
Percentage of available APNIC address space announced: 72.9
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: 77431
Total ARIN prefixes after maximum aggregation: 47978
Prefixes being announced from the ARIN address blocks: 59945
Unique aggregates announced from the ARIN address blocks: 20865
ARIN Region origin ASes present in the Internet Routing Table: 8903
ARIN Region origin ASes announcing only one prefix: 3149
ARIN Region transit ASes present in the Internet Routing Table: 850
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215816608
Equivalent to 12 /8s, 221 /16s and 25 /24s
Percentage of available ARIN address space announced: 71.5
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
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: 23732
Total RIPE prefixes after maximum aggregation: 17300
Prefixes being announced from the RIPE address blocks: 20570
Unique aggregates announced from the RIPE address blocks: 13285
RIPE Region origin ASes present in the Internet Routing Table: 5146
RIPE Region origin ASes announcing only one prefix: 2772
RIPE Region transit ASes present in the Internet Routing Table: 892
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 153273216
Equivalent to 9 /8s, 34 /16s and 195 /24s
Percentage of available RIPE address space announced: 70.3
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5375
Total LACNIC prefixes after maximum aggregation: 2206
Prefixes being announced from the LACNIC address blocks: 5000
Unique aggregates announced from the LACNIC address blocks: 3155
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 14079744
Equivalent to 0 /8s, 214 /16s and 215 /24s
Percentage of available LACNIC address space announced: 42.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1161
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 736
Unique aggregates announced from the AfriNIC address blocks: 570
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
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: 15
Number of AfriNIC addresses announced to Internet: 1766912
Equivalent to 0 /8s, 26 /16s and 246 /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 937 1120 663 Telstra Pty Ltd
4134 668 2489 117 Data Communications Bureau
4766 411 2905 244 Korea Internet Exchange for "
2907 361 1831 337 SINET Japan
4755 349 130 59 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
703 341 372 264 UUNET
9583 335 39 90 Satyam Infoway Ltd.,
17557 321 23 157 Pakistan Telecom
17676 295 4348 38 XTAGE CORPORATION
2764 282 288 236 connect.com.au pty ltd
7474 275 305 215 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 219 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 188 30 35 BHARTI BT INTERNET LTD.
17642 152 40 111 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
4739 148 60 135 Commerical Internet eXchange
4837 147 1425 97 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1401 7007 977 AT&T
701 1369 8662 963 UUNET Technologies, Inc.
1239 946 3089 660 Sprint
3356 767 10928 613 Level 3 Communications, LLC
209 717 3532 506 Qwest
18566 687 192 9 Covad Communications
4323 683 544 202 Time Warner Communications, I
6197 677 399 235 BellSouth Network Solutions,
20115 612 334 334 Charter Communications
6198 589 389 225 BellSouth Network Solutions,
7843 513 570 116 Adelphia Corp.
7066 503 207 271 Virginia Polytechnic Institut
852 502 1123 399 Telus Advanced Communications
7132 453 7449 312 Southwestern Bell Internet Se
2386 417 560 220 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 395 323 101 EarthLink, Inc.
19029 390 169 251 New Edge Networks
376 382 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 686 2074 571 UUNET - Commercial IP service
3301 336 1174 315 TeliaNet Sweden
3320 285 1972 232 Deutsche Telekom AG
8220 264 410 250 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 222 505 191 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 Song Networks
786 175 1826 175 The JANET IP Service
8708 170 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
3215 154 791 70 France Telecom Transpac
5400 146 223 133 BT Ignite European Backbone
3303 136 556 136 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 123 1005 65 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
3352 103 892 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 121 66 ImpSat
8151 246 368 125 UniNet S.A. de C.V.
11172 204 77 44 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 137 204 92 AVANTEL, S.A.
7303 137 51 30 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11992 71 25 28 Integrated Systems
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
14420 60 4 26 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
4926 57 4 48 Telintar 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 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
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
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
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 687 678 Covad Communications
4134 668 551 Data Communications Bureau
4323 683 481 Time Warner Communications, I
6197 677 442 BellSouth Network Solutions,
701 1369 406 UUNET Technologies, Inc.
7843 513 397 Adelphia Corp.
6198 589 364 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
5668 342 326 Century Telephone
22909 337 319 Comcast Cable Corporation
22773 337 303 Cox Communications, Inc. Atla
4355 395 294 EarthLink, Inc.
6140 357 291 ImpSat
4755 349 290 Videsh Sanchar Nigam Ltd. Aut
1239 946 286 Sprint
20115 612 278 Charter Communications
1221 937 274 Telstra Pty Ltd
376 382 268 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 295 257 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
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 /8:20 /9:4 /10:6 /11:15 /12:58
/13:105 /14:281 /15:502 /16:7551 /17:1875 /18:3461
/19:8902 /20:9241 /21:6690 /22:9506 /23:11074 /24:72275
/25:164 /26:258 /27:149 /28:27 /29:5 /30:38
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 670 687 Covad Communications
6197 526 677 BellSouth Network Solutions,
7018 508 1401 AT&T
6198 434 589 BellSouth Network Solutions,
702 415 686 UUNET - Commercial IP service
7066 397 503 Virginia Polytechnic Institut
3356 396 767 Level 3 Communications, LLC
701 395 1369 UUNET Technologies, Inc.
20115 388 612 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 332 946 Sprint
5668 303 342 Century Telephone
19029 256 390 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 235 411 Korea Internet Exchange for "
3320 233 285 Deutsche Telekom AG
6517 225 249 Yipes Communications, Inc.
6386 220 246 bellsouth.net, inc.
4355 215 395 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:766 13:1 15:6 16:1 17:3
20:7 24:853 32:84 38:44 40:26 44:2
55:1 56:1 57:13 61:358 62:459 63:1821
64:1830 65:1838 66:2288 67:270 68:591 69:361
80:460 81:202 82:73 128:143 129:263 130:73
131:79 132:16 134:180 135:16 136:128 137:116
138:146 139:40 140:160 141:135 142:106 143:47
144:80 145:39 146:292 147:75 148:300 149:85
150:119 151:61 152:214 153:60 154:1 155:131
156:66 157:55 158:135 159:142 160:46 161:51
162:366 163:69 164:331 165:173 166:106 167:214
168:176 169:96 170:304 171:8 192:5524 193:2547
194:2001 195:1311 196:518 198:3631 199:2882 200:2973
201:7 202:4437 203:5456 204:3023 205:2005 206:2269
207:2588 208:2427 209:2887 210:1045 211:414 212:899
213:997 214:23 215:25 216:3364 217:819 218:118
219:93 220:168 221:18 222:1
End of report
