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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 03 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140481
Prefixes after maximum aggregation: 85292
Unique aggregates announced to Internet: 67597
Total ASes present in the Internet Routing Table: 17352
Origin-only ASes present in the Internet Routing Table: 15059
Origin ASes announcing only one prefix: 6971
Transit ASes present in the Internet Routing Table: 2293
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: 26
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1309398524
Equivalent to 78 /8s, 11 /16s and 213 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 63661
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26620
Total APNIC prefixes after maximum aggregation: 13874
Prefixes being announced from the APNIC address blocks: 24904
Unique aggregates announced from the APNIC address blocks: 13879
APNIC Region origin ASes present in the Internet Routing Table: 2058
APNIC Region origin ASes announcing only one prefix: 614
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 149413888
Equivalent to 8 /8s, 231 /16s and 224 /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: 81003
Total ARIN prefixes after maximum aggregation: 50237
Prefixes being announced from the ARIN address blocks: 62589
Unique aggregates announced from the ARIN address blocks: 21747
ARIN Region origin ASes present in the Internet Routing Table: 9247
ARIN Region origin ASes announcing only one prefix: 3272
ARIN Region transit ASes present in the Internet Routing Table: 910
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224904224
Equivalent to 13 /8s, 103 /16s and 196 /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: 25621
Total RIPE prefixes after maximum aggregation: 18249
Prefixes being announced from the RIPE address blocks: 22413
Unique aggregates announced from the RIPE address blocks: 14922
RIPE Region origin ASes present in the Internet Routing Table: 5502
RIPE Region origin ASes announcing only one prefix: 2955
RIPE Region transit ASes present in the Internet Routing Table: 936
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 163076608
Equivalent to 9 /8s, 184 /16s and 90 /24s
Percentage of available RIPE address space announced: 57.2
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: 6085
Total LACNIC prefixes after maximum aggregation: 2257
Prefixes being announced from the LACNIC address blocks: 5705
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: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15005952
Equivalent to 0 /8s, 228 /16s and 249 /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: 1147
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 777
Unique aggregates announced from the AfriNIC address blocks: 583
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: 1865472
Equivalent to 0 /8s, 28 /16s and 119 /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 848 1091 613 Telstra Pty Ltd
4134 789 3660 144 Data Communications Bureau
4766 490 2896 264 Korea Internet Exchange for "
9583 441 34 131 Satyam Infoway Ltd.,
4755 369 134 58 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 345 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
17557 333 23 167 Pakistan Telecom
703 329 375 256 UUNET
2764 295 274 241 connect.com.au pty ltd
7474 263 268 207 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 210 193 26 Digital United Inc.
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
4837 181 2003 108 chinanet IDC center beijing n
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 1442 6891 1004 AT&T
701 1313 8513 940 UUNET Technologies, Inc.
6347 939 398 98 SAVVIS Communications Corpora
1239 934 2998 635 Sprint
3356 893 10900 678 Level 3 Communications, LLC
209 737 3459 502 Qwest
4323 732 563 204 Time Warner Communications, I
6197 709 525 274 BellSouth Network Solutions,
18566 707 192 8 Covad Communications
6198 570 440 218 BellSouth Network Solutions,
721 568 4446 415 DLA Systems Automation Center
20115 552 365 286 Charter Communications
852 515 1142 405 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
705 395 144 270 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
5668 380 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 645 2039 541 UUNET - Commercial IP service
3320 298 2477 238 Deutsche Telekom AG
3301 274 1097 264 TeliaNet Sweden
8220 272 429 260 COLT Internet - International
1257 246 495 197 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 204 463 201 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 155 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 124 18 30 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 271 373 132 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 70 18 9 Red de Interconexion Universi
14420 68 4 29 ANDINATEL S.A.
14259 67 4 5 GTD Internet S.A.
10292 65 6 28 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 254 632 219 The Internet Solution
5536 108 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 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 939 841 SAVVIS Communications Corpora
18566 707 699 Covad Communications
4134 789 645 Data Communications Bureau
4323 732 528 Time Warner Communications, I
6197 709 435 BellSouth Network Solutions,
7843 505 386 Adelphia Corp.
701 1313 373 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 570 352 BellSouth Network Solutions,
27364 363 344 Armstrong Cable Services
22773 379 329 Cox Communications, Inc. Atla
9929 345 312 China Netcom Corp.
4755 369 311 Videsh Sanchar Nigam Ltd. Aut
9583 441 310 Satyam Infoway Ltd.,
17676 341 308 XTAGE CORPORATION
1239 934 299 Sprint
11172 353 298 Servicios Alestra S.A de C.V
4355 391 290 EarthLink, Inc.
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
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
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
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 /14:296 /15:513 /16:7753 /17:2042 /18:3610
/19:9403 /20:9895 /21:7238 /22:10297 /23:11630 /24:76839
/25:220 /26:256 /27:135 /28:32 /29:15 /30:67
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 715 939 SAVVIS Communications Corpora
18566 690 707 Covad Communications
7018 556 1442 AT&T
6197 538 709 BellSouth Network Solutions,
3356 509 893 Level 3 Communications, LLC
6198 399 570 BellSouth Network Solutions,
702 396 645 UUNET - Commercial IP service
701 370 1313 UUNET Technologies, Inc.
1239 365 934 Sprint
27364 351 363 Armstrong Cable Services
5668 332 380 Century Telephone
4766 311 490 Korea Internet Exchange for "
20115 294 552 Charter Communications
9583 288 441 Satyam Infoway Ltd.,
9929 275 345 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
6517 237 263 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 24:733 32:101 38:68 40:54 44:3
55:1 56:3 57:15 61:383 62:482 63:1829
64:1959 65:1999 66:2577 67:319 68:526 69:543
70:64 80:491 81:308 82:174 83:63 128:148
129:185 130:82 131:132 132:18 133:1 134:181
135:17 136:185 137:92 138:156 139:43 140:162
141:124 142:116 143:61 144:87 145:42 146:301
147:77 148:418 149:120 150:93 151:71 152:165
153:62 154:1 155:118 156:62 157:59 158:144
159:146 160:54 161:55 162:377 163:76 164:166
165:161 166:100 167:220 168:224 169:106 170:286
171:8 192:5716 193:2743 194:2023 195:1370 196:556
198:3888 199:3267 200:3462 201:7 202:4582 203:5588
204:3034 205:2250 206:2244 207:2418 208:2239 209:2942
210:1420 211:561 212:983 213:1175 214:224 215:29
216:3572 217:926 218:163 219:109 220:228 221:28
222:56
End of report
