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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140471
Prefixes after maximum aggregation: 84950
Unique aggregates announced to Internet: 68180
Total ASes present in the Internet Routing Table: 17390
Origin-only ASes present in the Internet Routing Table: 15094
Origin ASes announcing only one prefix: 7015
Transit ASes present in the Internet Routing Table: 2296
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 26
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: 19
Number of addresses announced to Internet: 1311873020
Equivalent to 78 /8s, 49 /16s and 151 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64171
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26851
Total APNIC prefixes after maximum aggregation: 13908
Prefixes being announced from the APNIC address blocks: 25096
Unique aggregates announced from the APNIC address blocks: 14092
APNIC Region origin ASes present in the Internet Routing Table: 2058
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 149807104
Equivalent to 8 /8s, 237 /16s and 224 /24s
Percentage of available APNIC address space announced: 68.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 80583
Total ARIN prefixes after maximum aggregation: 49780
Prefixes being announced from the ARIN address blocks: 62398
Unique aggregates announced from the ARIN address blocks: 21956
ARIN Region origin ASes present in the Internet Routing Table: 9238
ARIN Region origin ASes announcing only one prefix: 3286
ARIN Region transit ASes present in the Internet Routing Table: 891
Average ARIN Region AS path length visible: 4.9
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225204256
Equivalent to 13 /8s, 108 /16s and 88 /24s
Percentage of available ARIN address space announced: 74.6
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 - 33791
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: 25765
Total RIPE prefixes after maximum aggregation: 18329
Prefixes being announced from the RIPE address blocks: 22570
Unique aggregates announced from the RIPE address blocks: 15067
RIPE Region origin ASes present in the Internet Routing Table: 5546
RIPE Region origin ASes announcing only one prefix: 2986
RIPE Region transit ASes present in the Internet Routing Table: 952
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164275200
Equivalent to 9 /8s, 202 /16s and 164 /24s
Percentage of available RIPE address space announced: 57.6
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6116
Total LACNIC prefixes after maximum aggregation: 2257
Prefixes being announced from the LACNIC address blocks: 5738
Unique aggregates announced from the LACNIC address blocks: 3509
LACNIC Region origin ASes present in the Internet Routing Table: 382
LACNIC Region origin ASes announcing only one prefix: 111
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15063808
Equivalent to 0 /8s, 229 /16s and 219 /24s
Percentage of available LACNIC address space announced: 44.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 778
Unique aggregates announced from the AfriNIC address blocks: 584
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1865728
Equivalent to 0 /8s, 28 /16s and 120 /24s
Percentage of available AfriNIC address space announced: 11.1
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 845 1075 613 Telstra Pty Ltd
4134 791 3660 144 Data Communications Bureau
4766 491 2896 264 Korea Internet Exchange for "
9583 453 34 137 Satyam Infoway Ltd.,
4755 366 133 53 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 352 1841 329 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
703 329 375 256 UUNET
17557 329 23 165 Pakistan Telecom
9929 323 156 33 China Netcom Corp.
2764 294 274 241 connect.com.au pty ltd
7474 263 267 206 Optus Communications Pty Ltd
9942 228 71 126 COMindico Australia
9800 224 367 62 CHINA UNICOM
9498 216 47 46 BHARTI BT INTERNET LTD.
4780 210 193 26 Digital United Inc.
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
4837 182 2019 105 chinanet IDC center beijing n
10036 181 17 169 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1435 6891 999 AT&T
701 1304 8493 929 UUNET Technologies, Inc.
1239 945 3000 638 Sprint
6347 940 400 98 SAVVIS Communications Corpora
3356 895 10901 679 Level 3 Communications, LLC
4323 736 548 204 Time Warner Communications, I
209 734 3456 503 Qwest
18566 710 192 8 Covad Communications
6197 707 499 286 BellSouth Network Solutions,
6198 573 440 220 BellSouth Network Solutions,
20115 556 369 287 Charter Communications
852 516 1142 405 Telus Advanced Communications
7843 506 652 128 Adelphia Corp.
7132 452 7868 338 Southwestern Bell Internet Se
2386 431 582 232 AT&T Data Communications Serv
705 394 144 269 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
22773 385 779 53 Cox Communications, Inc. Atla
5668 383 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2055 540 UUNET - Commercial IP service
3320 297 2462 237 Deutsche Telekom AG
3301 274 1097 264 TeliaNet Sweden
8220 274 429 262 COLT Internet - International
1257 251 497 197 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 209 468 206 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 184 112 171 Romania Data Systems S.A.
719 179 288 102 LANLINK autonomous system
3215 178 895 69 France Telecom Transpac
25186 175 156 116 France Telecom Transpac's Tra
786 174 1794 174 The JANET IP Service
6746 158 29 127 Dynamic Network Technologies,
5400 143 206 119 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 125 18 31 MobiFon S.A.
8866 121 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 80 57 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 273 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 144 53 31 Telecom Argentina Stet-France
6505 135 90 93 Global One Communicaoes Ltda
6503 129 218 87 AVANTEL, S.A.
11992 100 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
14420 76 5 32 ANDINATEL S.A.
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 276 79 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 7 AUCEGYPT Autonomous System
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 940 842 SAVVIS Communications Corpora
18566 710 702 Covad Communications
4134 791 647 Data Communications Bureau
4323 736 532 Time Warner Communications, I
6197 707 421 BellSouth Network Solutions,
7843 506 378 Adelphia Corp.
701 1304 375 UUNET Technologies, Inc.
5668 383 366 Century Telephone
22909 390 365 Comcast Cable Corporation
6198 573 353 BellSouth Network Solutions,
27364 360 341 Armstrong Cable Services
22773 385 332 Cox Communications, Inc. Atla
9583 453 316 Satyam Infoway Ltd.,
4755 366 313 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 945 307 Sprint
11172 356 299 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 323 290 China Netcom Corp.
6140 346 279 ImpSat
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
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
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
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:59
/13:124 /14:299 /15:516 /16:7859 /17:2060 /18:3619
/19:9412 /20:9885 /21:7258 /22:10318 /23:11721 /24:76547
/25:226 /26:257 /27:140 /28:31 /29:14 /30:69
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 717 940 SAVVIS Communications Corpora
18566 693 710 Covad Communications
7018 553 1435 AT&T
6197 538 707 BellSouth Network Solutions,
3356 509 895 Level 3 Communications, LLC
6198 402 573 BellSouth Network Solutions,
702 398 647 UUNET - Commercial IP service
1239 377 945 Sprint
701 373 1304 UUNET Technologies, Inc.
27364 348 360 Armstrong Cable Services
5668 335 383 Century Telephone
4766 312 491 Korea Internet Exchange for "
9583 304 453 Satyam Infoway Ltd.,
20115 295 556 Charter Communications
9929 256 323 China Netcom Corp.
14824 255 281 NewSouth Communications Corp.
3320 247 297 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
13609 237 278 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:824 13:1 15:5 16:2 17:3
20:8 24:733 32:65 33:1 38:67 40:54
44:3 55:1 56:3 57:16 61:436 62:503
63:1816 64:1966 65:2008 66:2597 67:329 68:528
69:556 70:64 80:495 81:308 82:175 83:68
84:2 128:144 129:186 130:78 131:177 132:21
133:1 134:181 135:17 136:182 137:92 138:154
139:44 140:166 141:125 142:116 143:55 144:89
145:42 146:305 147:78 148:418 149:121 150:93
151:72 152:165 153:64 154:1 155:117 156:60
157:60 158:145 159:147 160:52 161:57 162:379
163:77 164:179 165:156 166:94 167:218 168:226
169:106 170:284 171:8 192:5559 193:2755 194:2025
195:1386 196:557 198:3718 199:3099 200:3490 201:8
202:4625 203:5652 204:3096 205:2046 206:2257 207:2490
208:2226 209:2921 210:1429 211:564 212:978 213:1190
214:62 215:30 216:3691 217:929 218:164 219:108
220:227 221:28 222:45
End of report
