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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 139459
Prefixes after maximum aggregation: 84454
Unique aggregates announced to Internet: 67645
Total ASes present in the Internet Routing Table: 17339
Origin-only ASes present in the Internet Routing Table: 15040
Origin ASes announcing only one prefix: 6978
Transit ASes present in the Internet Routing Table: 2299
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 20
Illegal AS announcements present in the Routing Table: 40
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1310247420
Equivalent to 78 /8s, 24 /16s and 201 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 63547
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26596
Total APNIC prefixes after maximum aggregation: 13867
Prefixes being announced from the APNIC address blocks: 24929
Unique aggregates announced from the APNIC address blocks: 13880
APNIC Region origin ASes present in the Internet Routing Table: 2062
APNIC Region origin ASes announcing only one prefix: 614
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 149520128
Equivalent to 8 /8s, 233 /16s and 127 /24s
Percentage of available APNIC address space announced: 68.2
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: 79895
Total ARIN prefixes after maximum aggregation: 49388
Prefixes being announced from the ARIN address blocks: 61854
Unique aggregates announced from the ARIN address blocks: 21756
ARIN Region origin ASes present in the Internet Routing Table: 9222
ARIN Region origin ASes announcing only one prefix: 3275
ARIN Region transit ASes present in the Internet Routing Table: 904
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224980512
Equivalent to 13 /8s, 104 /16s and 238 /24s
Percentage of available ARIN address space announced: 74.5
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 - 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: 25693
Total RIPE prefixes after maximum aggregation: 18279
Prefixes being announced from the RIPE address blocks: 22471
Unique aggregates announced from the RIPE address blocks: 14987
RIPE Region origin ASes present in the Internet Routing Table: 5511
RIPE Region origin ASes announcing only one prefix: 2959
RIPE Region transit ASes present in the Internet Routing Table: 944
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 163506176
Equivalent to 9 /8s, 190 /16s and 232 /24s
Percentage of available RIPE address space announced: 57.3
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6096
Total LACNIC prefixes after maximum aggregation: 2245
Prefixes being announced from the LACNIC address blocks: 5708
Unique aggregates announced from the LACNIC address blocks: 3487
LACNIC Region origin ASes present in the Internet Routing Table: 381
LACNIC Region origin ASes announcing only one prefix: 108
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: 14998016
Equivalent to 0 /8s, 228 /16s and 218 /24s
Percentage of available LACNIC address space announced: 44.7
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: 775
Unique aggregates announced from the AfriNIC address blocks: 582
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: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1865216
Equivalent to 0 /8s, 28 /16s and 118 /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 849 1091 614 Telstra Pty Ltd
4134 789 3660 144 Data Communications Bureau
4766 485 2895 258 Korea Internet Exchange for "
9583 439 34 131 Satyam Infoway Ltd.,
4755 369 133 57 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 352 1841 329 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 330 23 165 Pakistan Telecom
703 329 375 256 UUNET
9929 323 156 33 China Netcom Corp.
2764 295 274 241 connect.com.au pty ltd
7474 264 268 207 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 216 47 46 BHARTI BT INTERNET LTD.
4780 209 193 26 Digital United Inc.
4837 182 2019 105 chinanet IDC center beijing n
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
10036 180 16 168 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1441 6891 1002 AT&T
701 1312 8513 938 UUNET Technologies, Inc.
6347 938 398 98 SAVVIS Communications Corpora
1239 936 2998 636 Sprint
3356 893 10900 677 Level 3 Communications, LLC
209 737 3459 502 Qwest
4323 735 547 203 Time Warner Communications, I
6197 710 525 275 BellSouth Network Solutions,
18566 708 192 8 Covad Communications
6198 570 440 218 BellSouth Network Solutions,
20115 553 366 287 Charter Communications
852 511 1126 402 Telus Advanced Communications
7843 505 648 119 Adelphia Corp.
7132 449 7851 335 Southwestern Bell Internet Se
2386 430 582 231 AT&T Data Communications Serv
705 394 144 269 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
376 383 359 112 Reseau Interordinateurs Scien
5668 380 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2039 541 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 274 1097 264 TeliaNet Sweden
8220 274 430 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 244 495 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 207 468 204 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 180 288 102 LANLINK autonomous system
3215 176 831 68 France Telecom Transpac
8708 176 111 165 Romania Data Systems S.A.
25186 175 172 116 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 156 29 127 Dynamic Network Technologies,
5400 143 207 121 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 116 13 7 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 353 80 55 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 272 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 219 90 AVANTEL, S.A.
11992 101 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
11311 72 7 19 Sinectis S.A.
4270 71 18 9 Red de Interconexion Universi
14420 68 4 29 ANDINATEL S.A.
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 252 632 219 The Internet Solution
5536 108 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 276 79 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 30 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 25 3 4 UUNET Kenya
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 938 840 SAVVIS Communications Corpora
18566 708 700 Covad Communications
4134 789 645 Data Communications Bureau
4323 735 532 Time Warner Communications, I
6197 710 435 BellSouth Network Solutions,
7843 505 386 Adelphia Corp.
701 1312 374 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 570 352 BellSouth Network Solutions,
27364 360 341 Armstrong Cable Services
22773 379 329 Cox Communications, Inc. Atla
4755 369 312 Videsh Sanchar Nigam Ltd. Aut
9583 439 308 Satyam Infoway Ltd.,
17676 341 308 XTAGE CORPORATION
1239 936 300 Sprint
11172 353 298 Servicios Alestra S.A de C.V
4355 391 290 EarthLink, Inc.
9929 323 290 China Netcom Corp.
6140 346 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
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
64601 PRIVATE 61.233.0.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.1.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.2.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.3.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.4.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.5.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.6.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.7.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.8.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.10.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.11.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.12.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.14.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.15.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.16.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.17.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.18.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.19.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.20.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.21.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.22.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.23.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.24.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.25.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.26.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.27.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.28.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.29.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.30.0/24 9394 CHINA RAILWAY Intern
64601 PRIVATE 61.233.31.0/24 9394 CHINA RAILWAY Intern
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
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
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
192.172.0.0/19 568 DISO-UNRRA
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 /14:297 /15:513 /16:7767 /17:2045 /18:3614
/19:9404 /20:9887 /21:7227 /22:10269 /23:11616 /24:75846
/25:224 /26:258 /27:137 /28:32 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 715 938 SAVVIS Communications Corpora
18566 691 708 Covad Communications
7018 555 1441 AT&T
6197 539 710 BellSouth Network Solutions,
3356 509 893 Level 3 Communications, LLC
6198 399 570 BellSouth Network Solutions,
702 397 646 UUNET - Commercial IP service
701 371 1312 UUNET Technologies, Inc.
1239 367 936 Sprint
27364 348 360 Armstrong Cable Services
5668 332 380 Century Telephone
4766 306 485 Korea Internet Exchange for "
20115 294 553 Charter Communications
9583 286 439 Satyam Infoway Ltd.,
9929 256 323 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
690 246 282 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
6517 236 262 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:5 16:2 17:3
20:8 24:727 32:101 38:69 40:54 44:3
55:1 56:3 57:15 61:417 62:480 63:1823
64:1955 65:2006 66:2574 67:320 68:526 69:541
70:64 80:495 81:309 82:174 83:67 128:147
129:186 130:82 131:132 132:18 133:1 134:181
135:17 136:186 137:92 138:157 139:43 140:161
141:125 142:116 143:51 144:87 145:42 146:302
147:77 148:418 149:122 150:93 151:71 152:165
153:62 154:1 155:117 156:62 157:60 158:144
159:146 160:54 161:55 162:377 163:76 164:166
165:161 166:100 167:219 168:222 169:106 170:285
171:8 192:5541 193:2746 194:2020 195:1360 196:554
198:3690 199:3056 200:3466 201:7 202:4581 203:5602
204:3056 205:1990 206:2273 207:2452 208:2234 209:2937
210:1416 211:564 212:986 213:1184 214:58 215:29
216:3482 217:925 218:163 219:109 220:225 221:28
222:56
End of report
