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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 21 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147094
Prefixes after maximum aggregation: 87382
Unique aggregates announced to Internet: 70150
Total ASes present in the Internet Routing Table: 18074
Origin-only ASes present in the Internet Routing Table: 15706
Origin ASes announcing only one prefix: 7326
Transit ASes present in the Internet Routing Table: 2368
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 57
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1338066596
Equivalent to 79 /8s, 193 /16s and 70 /24s
Percentage of available address space announced: 36.1
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67539
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28213
Total APNIC prefixes after maximum aggregation: 14193
Prefixes being announced from the APNIC address blocks: 26467
Unique aggregates announced from the APNIC address blocks: 14108
APNIC Region origin ASes present in the Internet Routing Table: 2138
APNIC Region origin ASes announcing only one prefix: 632
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 162297472
Equivalent to 9 /8s, 172 /16s and 118 /24s
Percentage of available APNIC address space announced: 74.1
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: 83783
Total ARIN prefixes after maximum aggregation: 51167
Prefixes being announced from the ARIN address blocks: 64090
Unique aggregates announced from the ARIN address blocks: 22766
ARIN Region origin ASes present in the Internet Routing Table: 9554
ARIN Region origin ASes announcing only one prefix: 3423
ARIN Region transit ASes present in the Internet Routing Table: 921
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232222720
Equivalent to 13 /8s, 215 /16s and 112 /24s
Percentage of available ARIN address space announced: 69.2
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27317
Total RIPE prefixes after maximum aggregation: 19036
Prefixes being announced from the RIPE address blocks: 24166
Unique aggregates announced from the RIPE address blocks: 15870
RIPE Region origin ASes present in the Internet Routing Table: 5831
RIPE Region origin ASes announcing only one prefix: 3132
RIPE Region transit ASes present in the Internet Routing Table: 998
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 171335232
Equivalent to 10 /8s, 54 /16s and 94 /24s
Percentage of available RIPE address space announced: 60.1
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, 33792-34815
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: 6477
Total LACNIC prefixes after maximum aggregation: 2294
Prefixes being announced from the LACNIC address blocks: 6265
Unique aggregates announced from the LACNIC address blocks: 3610
LACNIC Region origin ASes present in the Internet Routing Table: 393
LACNIC Region origin ASes announcing only one prefix: 118
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16063488
Equivalent to 0 /8s, 245 /16s and 28 /24s
Percentage of available LACNIC address space announced: 47.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1251
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 830
Unique aggregates announced from the AfriNIC address blocks: 666
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2061056
Equivalent to 0 /8s, 31 /16s and 115 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 834 4193 156 Data Communications Bureau
1221 809 1184 582 Telstra Pty Ltd
4766 561 3409 267 Korea Internet Exchange for "
9583 531 41 103 Satyam Infoway Ltd.,
4755 365 133 48 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 81 Primus Telecommunications
17676 353 5260 43 XTAGE CORPORATION
2907 352 1841 326 SINET Japan
9929 346 161 33 China Netcom Corp.
17557 313 22 155 Pakistan Telecom
703 311 342 240 UUNET
2764 285 286 234 connect.com.au pty ltd
7474 271 269 200 Optus Communications Pty Ltd
9942 239 73 129 COMindico Australia
4802 232 28 142 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 223 49 49 BHARTI BT INTERNET LTD.
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
4837 202 2264 106 chinanet IDC center beijing n
10036 202 18 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1414 6753 980 AT&T WorldNet Services
701 1269 8423 915 UUNET Technologies, Inc.
1239 945 2882 628 Sprint
2386 829 529 594 AT&T Data Communications Serv
4323 777 613 213 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 723 362 350 BellSouth Network Solutions,
721 717 21012 296 DLA Systems Automation Center
209 623 3465 496 Qwest
3356 587 10923 447 Level 3 Communications, LLC
20115 578 422 291 Charter Communications
3561 531 2487 371 Cable & Wireless USA
852 509 1141 396 Telus Advanced Communications
7843 488 672 104 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
6198 431 396 199 BellSouth Network Solutions,
705 429 163 271 UUNET Technologies, Inc.
22773 397 960 18 Cox Communications, Inc. Atla
27364 395 36 19 Armstrong Cable Services
5668 393 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2031 526 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
3301 282 1100 272 TeliaNet Sweden
8220 276 460 263 COLT Internet - International
21502 268 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 744 179 SWIPnet Swedish IP Network
8708 204 113 183 Romania Data Systems S.A.
5515 198 842 144 Sonera Solution Autonomous Sy
3215 184 876 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 155 29 132 Dynamic Network Technologies,
5400 151 209 122 BT Ignite European Backbone
25186 151 154 109 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 140 16 21 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 362 138 67 ImpSat
11172 340 100 54 Servicios Alestra S.A de C.V
8151 300 438 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 190 86 19 Telefonica Del Peru
11664 146 11 31 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 131 171 87 AVANTEL, S.A.
7303 123 55 18 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
10620 86 12 5 TVCABLE BOGOTA
14420 86 7 36 ANDINATEL S.A.
6535 84 5 18 Chilesat Servicios Empresari
11311 83 8 22 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
14988 48 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
6713 32 42 10 Itissalat Al-MAGHRIB
9129 30 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21491 16 1 3 UTL On-line is RF broadband I
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 739 733 Covad Communications
4134 834 678 Data Communications Bureau
4323 777 564 Time Warner Telecom
9583 531 428 Satyam Infoway Ltd.,
721 717 421 DLA Systems Automation Center
7843 488 384 Adelphia Corp.
22773 397 379 Cox Communications, Inc. Atla
27364 395 376 Armstrong Cable Services
5668 393 375 Century Telephone
6197 723 373 BellSouth Network Solutions,
6467 393 363 E.Spire Communications, Inc.
701 1269 354 UUNET Technologies, Inc.
22909 375 338 Comcast Cable Corporation
1239 945 317 Sprint
4755 365 317 Videsh Sanchar Nigam Ltd. Aut
9929 346 313 China Netcom Corp.
17676 353 310 XTAGE CORPORATION
6140 362 295 ImpSat
4766 561 294 Korea Internet Exchange for "
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
22750 UNALLOCATED 196.44.64.0/19 3741 The Internet Solutio
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 3741 The Internet Solutio
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.96.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/21 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/21 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro
64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64586 PRIVATE 219.146.232.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/19 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/19 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/19 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/19 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/19 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/19 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro
64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
64586 PRIVATE 222.175.64.0/19 17633 ASN for Shandong Pro
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
111.0.0.0/24 7563 Korea Internet Infrastructure
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 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 WorldNet Services
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 /12:63
/13:134 /14:306 /15:541 /16:8030 /17:2216 /18:3850
/19:9801 /20:10320 /21:7770 /22:10720 /23:12319 /24:80184
/25:251 /26:198 /27:107 /28:55 /29:41 /30:94
/31:0 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 596 829 AT&T Data Communications Serv
6197 575 723 BellSouth Network Solutions,
7018 556 1414 AT&T WorldNet Services
702 388 634 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
4766 378 561 Korea Internet Exchange for "
1239 374 945 Sprint
9583 370 531 Satyam Infoway Ltd.,
701 355 1269 UUNET Technologies, Inc.
5668 343 393 Century Telephone
6198 317 431 BellSouth Network Solutions,
20115 292 578 Charter Communications
6467 290 393 E.Spire Communications, Inc.
9929 277 346 China Netcom Corp.
6517 269 296 Yipes Communications, Inc.
21502 265 268 NUMERICABLE is a cabled netwo
13609 264 307 Choice One Communications Inc
6347 254 340 SAVVIS Communications Corpora
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1393 13:1 15:5 16:2
17:3 20:5 24:720 32:66 33:2 38:78
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:499 62:491 63:1838 64:2339 65:2057
66:2466 67:392 68:537 69:721 70:71 80:529
81:548 82:321 83:153 84:26 111:1 128:117
129:169 130:87 131:187 132:26 134:166 135:17
136:177 137:55 138:175 139:35 140:184 141:107
142:117 143:66 144:161 145:41 146:294 147:94
148:425 149:108 150:88 151:70 152:152 153:68
154:2 155:128 156:59 157:71 158:142 159:161
160:57 161:71 162:374 163:80 164:214 165:159
166:118 167:224 168:292 169:114 170:270 171:9
192:5573 193:2887 194:2125 195:1485 196:587 198:3676
199:3250 200:3819 201:16 202:4827 203:5646 204:3231
205:2081 206:2310 207:2541 208:2137 209:3022 210:1487
211:612 212:1087 213:1196 214:133 215:31 216:3720
217:1005 218:176 219:101 220:253 221:37 222:43
End of report
