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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 26 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137035
Prefixes after maximum aggregation: 83094
Unique aggregates announced to Internet: 66413
Total ASes present in the Internet Routing Table: 17079
Origin-only ASes present in the Internet Routing Table: 14814
Origin ASes announcing only one prefix: 6838
Transit ASes present in the Internet Routing Table: 2265
Transit-only ASes present in the Internet Routing Table: 78
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: 1283193348
Equivalent to 76 /8s, 123 /16s and 250 /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: 61518
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26149
Total APNIC prefixes after maximum aggregation: 13631
Prefixes being announced from the APNIC address blocks: 24458
Unique aggregates announced from the APNIC address blocks: 13645
APNIC Region origin ASes present in the Internet Routing Table: 2042
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 145436288
Equivalent to 8 /8s, 171 /16s and 46 /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: 78863
Total ARIN prefixes after maximum aggregation: 48653
Prefixes being announced from the ARIN address blocks: 60780
Unique aggregates announced from the ARIN address blocks: 21475
ARIN Region origin ASes present in the Internet Routing Table: 9123
ARIN Region origin ASes announcing only one prefix: 3237
ARIN Region transit ASes present in the Internet Routing Table: 895
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 222271776
Equivalent to 13 /8s, 63 /16s and 153 /24s
Percentage of available ARIN address space announced: 73.6
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: 25082
Total RIPE prefixes after maximum aggregation: 17927
Prefixes being announced from the RIPE address blocks: 21890
Unique aggregates announced from the RIPE address blocks: 14420
RIPE Region origin ASes present in the Internet Routing Table: 5373
RIPE Region origin ASes announcing only one prefix: 2865
RIPE Region transit ASes present in the Internet Routing Table: 920
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 159803392
Equivalent to 9 /8s, 134 /16s and 104 /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: 5799
Total LACNIC prefixes after maximum aggregation: 2212
Prefixes being announced from the LACNIC address blocks: 5440
Unique aggregates announced from the LACNIC address blocks: 3406
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: 73
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14604800
Equivalent to 0 /8s, 222 /16s and 218 /24s
Percentage of available LACNIC address space announced: 43.5
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1140
Total AfriNIC prefixes after maximum aggregation: 671
Prefixes being announced from the AfriNIC address blocks: 755
Unique aggregates announced from the AfriNIC address blocks: 561
AfriNIC Region origin ASes present in the Internet Routing Table: 89
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: 1840128
Equivalent to 0 /8s, 28 /16s and 20 /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 859 1091 626 Telstra Pty Ltd
4134 771 3480 137 Data Communications Bureau
4766 474 2916 253 Korea Internet Exchange for "
9583 453 40 82 Satyam Infoway Ltd.,
4755 359 129 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 323 23 162 Pakistan Telecom
2764 294 273 240 connect.com.au pty ltd
7474 271 284 212 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 1425 6964 996 AT&T
701 1314 8538 942 UUNET Technologies, Inc.
1239 940 3033 638 Sprint
3356 894 10967 689 Level 3 Communications, LLC
209 757 3481 519 Qwest
4323 720 561 199 Time Warner Communications, I
18566 699 192 8 Covad Communications
6197 695 507 256 BellSouth Network Solutions,
6198 564 368 206 BellSouth Network Solutions,
20115 541 342 283 Charter Communications
852 513 1127 404 Telus Advanced Communications
7843 499 632 111 Adelphia Corp.
7066 498 208 274 Virginia Polytechnic Institut
7132 450 7847 332 Southwestern Bell Internet Se
2386 429 579 232 AT&T Data Communications Serv
27364 405 29 23 Armstrong Cable Services
4355 393 323 103 EarthLink, Inc.
22909 384 839 23 Comcast Cable Corporation
6347 381 386 86 SAVVIS Communications Corpora
376 380 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 663 2039 554 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
3301 268 984 258 TeliaNet Sweden
8220 268 412 255 COLT Internet - International
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 198 451 195 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 167 815 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 149 78 20 Telefonica Del Peru
7303 140 53 27 Telecom Argentina Stet-France
6503 136 220 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
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 26 3 4 UUNET Kenya
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 771 634 Data Communications Bureau
4323 720 521 Time Warner Communications, I
6197 695 439 BellSouth Network Solutions,
7843 499 388 Adelphia Corp.
27364 405 382 Armstrong Cable Services
701 1314 372 UUNET Technologies, Inc.
9583 453 371 Satyam Infoway Ltd.,
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.
17676 341 308 XTAGE CORPORATION
4755 359 307 Videsh Sanchar Nigam Ltd. Aut
6140 379 305 ImpSat
1239 940 302 Sprint
6347 381 295 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
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
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 /15:509 /16:7745 /17:1992 /18:3554
/19:9319 /20:9711 /21:7042 /22:9934 /23:11399 /24:74630
/25:205 /26:252 /27:140 /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 535 1425 AT&T
6197 531 695 BellSouth Network Solutions,
3356 495 894 Level 3 Communications, LLC
6198 402 564 BellSouth Network Solutions,
702 401 663 UUNET - Commercial IP service
27364 398 405 Armstrong Cable Services
7066 392 498 Virginia Polytechnic Institut
701 365 1314 UUNET Technologies, Inc.
1239 356 940 Sprint
5668 320 367 Century Telephone
20115 296 541 Charter Communications
690 295 332 Merit Network
4766 294 474 Korea Internet Exchange for "
9583 293 453 Satyam Infoway Ltd.,
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 12:820 13:1 15:4 16:1 17:3
20:8 24:783 32:80 38:63 40:54 44:3
55:1 56:4 57:13 61:405 62:464 63:1827
64:1858 65:1947 66:2503 67:291 68:540 69:505
70:32 80:506 81:267 82:150 83:31 128:145
129:253 130:99 131:89 132:19 133:1 134:185
135:17 136:193 137:106 138:150 139:35 140:150
141:133 142:108 143:50 144:93 145:41 146:299
147:77 148:367 149:92 150:93 151:64 152:188
153:62 154:1 155:124 156:133 157:54 158:146
159:161 160:51 161:51 162:378 163:78 164:327
165:163 166:98 167:209 168:217 169:103 170:288
171:8 192:5517 193:2659 194:2019 195:1342 196:537
198:3646 199:3021 200:3267 201:8 202:4548 203:5504
204:2986 205:1974 206:2270 207:2480 208:2285 209:2846
210:1376 211:522 212:956 213:1158 214:35 215:27
216:3358 217:894 218:169 219:100 220:209 221:27
222:24
End of report
