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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 27 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137150
Prefixes after maximum aggregation: 83136
Unique aggregates announced to Internet: 66381
Total ASes present in the Internet Routing Table: 17092
Origin-only ASes present in the Internet Routing Table: 14826
Origin ASes announcing only one prefix: 6836
Transit ASes present in the Internet Routing Table: 2266
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
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: 17
Number of addresses announced to Internet: 1282981252
Equivalent to 76 /8s, 120 /16s and 189 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61620
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26172
Total APNIC prefixes after maximum aggregation: 13629
Prefixes being announced from the APNIC address blocks: 24483
Unique aggregates announced from the APNIC address blocks: 13626
APNIC Region origin ASes present in the Internet Routing Table: 2042
APNIC Region origin ASes announcing only one prefix: 611
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: 16
Number of APNIC addresses announced to Internet: 145496064
Equivalent to 8 /8s, 172 /16s and 24 /24s
Percentage of available APNIC address space announced: 78.4
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: 78917
Total ARIN prefixes after maximum aggregation: 48667
Prefixes being announced from the ARIN address blocks: 60815
Unique aggregates announced from the ARIN address blocks: 21487
ARIN Region origin ASes present in the Internet Routing Table: 9130
ARIN Region origin ASes announcing only one prefix: 3238
ARIN Region transit ASes present in the Internet Routing Table: 897
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 222039584
Equivalent to 13 /8s, 60 /16s and 14 /24s
Percentage of available ARIN address space announced: 73.5
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: 25110
Total RIPE prefixes after maximum aggregation: 17956
Prefixes being announced from the RIPE address blocks: 21923
Unique aggregates announced from the RIPE address blocks: 14419
RIPE Region origin ASes present in the Internet Routing Table: 5376
RIPE Region origin ASes announcing only one prefix: 2861
RIPE Region transit ASes present in the Internet Routing Table: 925
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 159740672
Equivalent to 9 /8s, 133 /16s and 115 /24s
Percentage of available RIPE address space announced: 56.0
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5801
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 5445
Unique aggregates announced from the LACNIC address blocks: 3394
LACNIC Region origin ASes present in the Internet Routing Table: 374
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 14630912
Equivalent to 0 /8s, 223 /16s and 64 /24s
Percentage of available LACNIC address space announced: 43.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1149
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 756
Unique aggregates announced from the AfriNIC address blocks: 562
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1840384
Equivalent to 0 /8s, 28 /16s and 21 /24s
Percentage of available AfriNIC address space announced: 11.0
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 857 1091 624 Telstra Pty Ltd
4134 768 3480 137 Data Communications Bureau
4766 473 2916 252 Korea Internet Exchange for "
9583 458 40 82 Satyam Infoway Ltd.,
4755 364 129 52 Videsh Sanchar Nigam Ltd. Aut
2907 354 1841 330 SINET Japan
9443 354 69 78 Primus Telecommunications
9929 348 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 335 373 258 UUNET
17557 324 23 163 Pakistan Telecom
2764 293 273 239 connect.com.au pty ltd
7474 270 284 212 Optus Communications Pty Ltd
9942 222 70 125 COMindico Australia
9800 218 348 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 205 31 45 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 169 159 24 Hutchison Telecom (HK)
7633 159 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6948 997 AT&T
701 1315 8538 942 UUNET Technologies, Inc.
1239 939 3033 637 Sprint
3356 895 10967 689 Level 3 Communications, LLC
209 757 3481 519 Qwest
4323 720 561 199 Time Warner Communications, I
6197 699 513 258 BellSouth Network Solutions,
18566 699 192 8 Covad Communications
6198 564 368 206 BellSouth Network Solutions,
20115 539 342 282 Charter Communications
852 513 1127 404 Telus Advanced Communications
7066 502 208 274 Virginia Polytechnic Institut
7843 499 632 111 Adelphia Corp.
2386 428 579 231 AT&T Data Communications Serv
7132 423 7781 313 Southwestern Bell Internet Se
27364 413 29 24 Armstrong Cable Services
4355 393 323 103 EarthLink, Inc.
22909 384 839 23 Comcast Cable Corporation
6347 382 386 87 SAVVIS Communications Corpora
376 381 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 664 2039 555 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
8220 268 412 255 COLT Internet - International
3301 267 968 257 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 234 510 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
719 200 288 103 LANLINK autonomous system
3246 196 445 194 Song Networks
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 175 111 164 Romania Data Systems S.A.
3215 168 815 71 France Telecom Transpac
5400 157 241 138 BT Ignite European Backbone
6746 137 28 114 Dynamic Network Technologies,
3303 135 610 135 Swisscom Ltd
3269 134 1101 65 TELECOM ITALIA
12302 122 18 29 MobiFon S.A.
1273 112 166 89 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 122 74 ImpSat
8151 262 357 129 UniNet S.A. de C.V.
11172 208 75 43 Servicios Alestra S.A de C.V
16814 163 11 6 NSS, S.A.
6147 148 78 20 Telefonica Del Peru
7303 140 53 27 Telecom Argentina Stet-France
6503 135 220 92 AVANTEL, S.A.
6505 132 90 91 Global One Communicaoes Ltda
11992 90 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
14420 76 5 32 ANDINATEL S.A.
15311 74 18 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 70 7 15 Sinectis S.A.
14535 70 6 5 Techtel S.A.
14259 69 4 5 GTD Internet S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 62 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
9129 31 3 4 UUNET Kenya
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
14988 25 16 1 Botswana Telecommunications C
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 23 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
15808 14 1 6 Communication Solutions Ltd i
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 699 691 Covad Communications
4134 768 631 Data Communications Bureau
4323 720 521 Time Warner Communications, I
6197 699 441 BellSouth Network Solutions,
27364 413 389 Armstrong Cable Services
7843 499 388 Adelphia Corp.
9583 458 376 Satyam Infoway Ltd.,
701 1315 373 UUNET Technologies, Inc.
22909 384 361 Comcast Cable Corporation
6198 564 358 BellSouth Network Solutions,
5668 367 351 Century Telephone
22773 362 326 Cox Communications, Inc. Atla
9929 348 317 China Netcom Corp.
4755 364 312 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
6140 379 305 ImpSat
1239 939 302 Sprint
6347 382 295 SAVVIS Communications Corpora
4355 393 290 EarthLink, Inc.
9443 354 276 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
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 /8:18 /9:3 /10:6 /11:15 /12:58
/13:112 /14:294 /15:508 /16:7745 /17:1991 /18:3549
/19:9332 /20:9717 /21:7049 /22:9937 /23:11408 /24:74708
/25:207 /26:255 /27:141 /28:30 /29:4 /30:51
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 699 Covad Communications
7018 537 1426 AT&T
6197 532 699 BellSouth Network Solutions,
3356 496 895 Level 3 Communications, LLC
27364 406 413 Armstrong Cable Services
702 402 664 UUNET - Commercial IP service
6198 402 564 BellSouth Network Solutions,
7066 396 502 Virginia Polytechnic Institut
701 365 1315 UUNET Technologies, Inc.
1239 356 939 Sprint
5668 320 367 Century Telephone
9583 298 458 Satyam Infoway Ltd.,
690 295 332 Merit Network
20115 294 539 Charter Communications
4766 293 473 Korea Internet Exchange for "
9929 277 348 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
25844 244 244 Skadden, Arps, Slate, Meagher
3320 243 296 Deutsche Telekom AG
13609 233 274 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:822 13:1 15:4 16:1 17:3
20:8 24:789 32:81 38:63 40:54 44:3
55:1 56:4 57:13 61:405 62:465 63:1840
64:1855 65:1951 66:2500 67:291 68:541 69:504
70:64 80:506 81:273 82:154 83:33 128:144
129:249 130:104 131:84 132:19 133:2 134:185
135:17 136:193 137:107 138:151 139:35 140:150
141:134 142:108 143:50 144:96 145:41 146:291
147:77 148:364 149:93 150:93 151:64 152:188
153:62 154:1 155:124 156:133 157:54 158:146
159:161 160:51 161:53 162:379 163:80 164:330
165:163 166:98 167:209 168:218 169:103 170:287
171:8 192:5515 193:2665 194:2027 195:1344 196:538
198:3648 199:3013 200:3265 201:8 202:4545 203:5507
204:2984 205:1972 206:2269 207:2484 208:2287 209:2851
210:1382 211:521 212:959 213:1153 214:35 215:27
216:3350 217:895 218:169 219:101 220:208 221:30
222:25
End of report
