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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 23 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147564
Prefixes after maximum aggregation: 87524
Unique aggregates announced to Internet: 70215
Total ASes present in the Internet Routing Table: 18087
Origin-only ASes present in the Internet Routing Table: 15727
Origin ASes announcing only one prefix: 7336
Transit ASes present in the Internet Routing Table: 2360
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
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: 1340372260
Equivalent to 79 /8s, 228 /16s and 117 /24s
Percentage of available address space announced: 36.2
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67766
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28292
Total APNIC prefixes after maximum aggregation: 14198
Prefixes being announced from the APNIC address blocks: 26548
Unique aggregates announced from the APNIC address blocks: 14114
APNIC Region origin ASes present in the Internet Routing Table: 2140
APNIC Region origin ASes announcing only one prefix: 634
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 163490176
Equivalent to 9 /8s, 190 /16s and 169 /24s
Percentage of available APNIC address space announced: 74.6
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: 84104
Total ARIN prefixes after maximum aggregation: 51287
Prefixes being announced from the ARIN address blocks: 64334
Unique aggregates announced from the ARIN address blocks: 22781
ARIN Region origin ASes present in the Internet Routing Table: 9565
ARIN Region origin ASes announcing only one prefix: 3426
ARIN Region transit ASes present in the Internet Routing Table: 919
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232708608
Equivalent to 13 /8s, 222 /16s and 218 /24s
Percentage of available ARIN address space announced: 69.4
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: 27328
Total RIPE prefixes after maximum aggregation: 19041
Prefixes being announced from the RIPE address blocks: 24186
Unique aggregates announced from the RIPE address blocks: 15893
RIPE Region origin ASes present in the Internet Routing Table: 5836
RIPE Region origin ASes announcing only one prefix: 3139
RIPE Region transit ASes present in the Internet Routing Table: 994
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 171680576
Equivalent to 10 /8s, 59 /16s and 163 /24s
Percentage of available RIPE address space announced: 60.2
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, 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: 6541
Total LACNIC prefixes after maximum aggregation: 2309
Prefixes being announced from the LACNIC address blocks: 6313
Unique aggregates announced from the LACNIC address blocks: 3619
LACNIC Region origin ASes present in the Internet Routing Table: 392
LACNIC Region origin ASes announcing only one prefix: 117
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16091264
Equivalent to 0 /8s, 245 /16s and 136 /24s
Percentage of available LACNIC address space announced: 48.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1246
Total AfriNIC prefixes after maximum aggregation: 686
Prefixes being announced from the AfriNIC address blocks: 825
Unique aggregates announced from the AfriNIC address blocks: 666
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
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 836 4385 158 Data Communications Bureau
1221 809 1184 582 Telstra Pty Ltd
4766 565 3409 267 Korea Internet Exchange for "
9583 532 41 103 Satyam Infoway Ltd.,
4755 366 133 48 Videsh Sanchar Nigam Ltd. Aut
17676 359 5356 47 XTAGE CORPORATION
9443 355 70 81 Primus Telecommunications
2907 352 1841 326 SINET Japan
9929 346 161 33 China Netcom Corp.
17557 312 23 154 Pakistan Telecom
703 311 342 240 UUNET
2764 285 286 234 connect.com.au pty ltd
7474 272 269 200 Optus Communications Pty Ltd
9942 242 73 129 COMindico Australia
4802 233 28 143 Wantree Development
9800 227 371 64 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 1412 6752 980 AT&T WorldNet Services
701 1269 8423 915 UUNET Technologies, Inc.
1239 946 2882 628 Sprint
2386 829 529 594 AT&T Data Communications Serv
4323 786 617 214 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 723 362 350 BellSouth Network Solutions,
721 717 21012 296 DLA Systems Automation Center
209 622 3465 496 Qwest
3356 589 10923 449 Level 3 Communications, LLC
20115 585 424 298 Charter Communications
3561 532 2486 370 Cable & Wireless USA
852 509 1141 396 Telus Advanced Communications
7843 491 681 98 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
702 635 2031 527 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
3301 284 1100 274 TeliaNet Sweden
8220 274 460 261 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 208 744 178 SWIPnet Swedish IP Network
8708 205 113 183 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,
25186 149 154 106 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
5400 148 206 120 BT Ignite European Backbone
3269 145 1195 66 TELECOM ITALIA
8866 145 17 23 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 364 138 67 ImpSat
11172 352 100 54 Servicios Alestra S.A de C.V
8151 298 438 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 190 86 19 Telefonica Del Peru
11664 148 13 33 Keytech SA
6505 136 90 94 Global One Communicaoes Ltda
6503 131 171 87 AVANTEL, S.A.
7303 125 56 19 Telecom Argentina Stet-France
10620 99 12 5 TVCABLE BOGOTA
11992 90 9 31 Integrated Systems
14420 87 7 35 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 34 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 836 678 Data Communications Bureau
4323 786 572 Time Warner Telecom
9583 532 429 Satyam Infoway Ltd.,
721 717 421 DLA Systems Automation Center
7843 491 393 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 392 362 E.Spire Communications, Inc.
701 1269 354 UUNET Technologies, Inc.
22909 375 338 Comcast Cable Corporation
1239 946 318 Sprint
4755 366 318 Videsh Sanchar Nigam Ltd. Aut
9929 346 313 China Netcom Corp.
17676 359 312 XTAGE CORPORATION
4766 565 298 Korea Internet Exchange for "
11172 352 298 Servicios Alestra S.A de C.V
6140 364 297 ImpSat
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
/13:135 /14:308 /15:541 /16:8060 /17:2224 /18:3861
/19:9822 /20:10346 /21:7778 /22:10765 /23:12374 /24:80439
/25:252 /26:203 /27:108 /28:55 /29:37 /30:98
/31:0 /32:52
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 1412 AT&T WorldNet Services
702 388 635 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
4766 378 565 Korea Internet Exchange for "
1239 375 946 Sprint
9583 371 532 Satyam Infoway Ltd.,
701 355 1269 UUNET Technologies, Inc.
5668 343 393 Century Telephone
6198 317 431 BellSouth Network Solutions,
20115 298 585 Charter Communications
6467 289 392 E.Spire Communications, Inc.
9929 277 346 China Netcom Corp.
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
21502 265 268 NUMERICABLE is a cabled netwo
3320 246 300 Deutsche Telekom AG
6347 246 332 SAVVIS Communications Corpora
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1394 13:1 15:5 16:2
17:3 20:6 24:724 32:66 33:2 38:78
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:507 62:506 63:1840 64:2345 65:2062
66:2487 67:394 68:548 69:723 70:71 80:523
81:551 82:324 83:158 84:26 111:1 128:120
129:169 130:86 131:189 132:26 134:186 135:17
136:182 137:55 138:175 139:35 140:186 141:107
142:120 143:65 144:158 145:41 146:293 147:94
148:425 149:109 150:88 151:65 152:152 153:68
154:2 155:127 156:59 157:71 158:143 159:163
160:57 161:71 162:376 163:81 164:214 165:161
166:118 167:224 168:294 169:115 170:270 171:9
192:5581 193:2895 194:2112 195:1487 196:584 198:3676
199:3271 200:3847 201:20 202:4830 203:5652 204:3242
205:2090 206:2316 207:2561 208:2145 209:3024 210:1489
211:627 212:1088 213:1197 214:134 215:31 216:3715
217:1004 218:176 219:101 220:254 221:37 222:45
End of report
