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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 24 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147554
Prefixes after maximum aggregation: 87564
Unique aggregates announced to Internet: 70283
Total ASes present in the Internet Routing Table: 18098
Origin-only ASes present in the Internet Routing Table: 15733
Origin ASes announcing only one prefix: 7335
Transit ASes present in the Internet Routing Table: 2365
Transit-only ASes present in the Internet Routing Table: 74
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: 1340759204
Equivalent to 79 /8s, 234 /16s and 92 /24s
Percentage of available address space announced: 36.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67716
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28282
Total APNIC prefixes after maximum aggregation: 14221
Prefixes being announced from the APNIC address blocks: 26540
Unique aggregates announced from the APNIC address blocks: 14137
APNIC Region origin ASes present in the Internet Routing Table: 2139
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: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 163499904
Equivalent to 9 /8s, 190 /16s and 207 /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: 84125
Total ARIN prefixes after maximum aggregation: 51292
Prefixes being announced from the ARIN address blocks: 64354
Unique aggregates announced from the ARIN address blocks: 22806
ARIN Region origin ASes present in the Internet Routing Table: 9569
ARIN Region origin ASes announcing only one prefix: 3425
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: 19
Number of ARIN addresses announced to Internet: 232955904
Equivalent to 13 /8s, 226 /16s and 160 /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: 27358
Total RIPE prefixes after maximum aggregation: 19046
Prefixes being announced from the RIPE address blocks: 24211
Unique aggregates announced from the RIPE address blocks: 15903
RIPE Region origin ASes present in the Internet Routing Table: 5841
RIPE Region origin ASes announcing only one prefix: 3140
RIPE Region transit ASes present in the Internet Routing Table: 999
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 171816768
Equivalent to 10 /8s, 61 /16s and 183 /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: 6489
Total LACNIC prefixes after maximum aggregation: 2315
Prefixes being announced from the LACNIC address blocks: 6309
Unique aggregates announced from the LACNIC address blocks: 3629
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: 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: 16081920
Equivalent to 0 /8s, 245 /16s and 100 /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: 1247
Total AfriNIC prefixes after maximum aggregation: 687
Prefixes being announced from the AfriNIC address blocks: 829
Unique aggregates announced from the AfriNIC address blocks: 666
AfriNIC Region origin ASes present in the Internet Routing Table: 92
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: 4.9
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 808 1183 581 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 533 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 286 286 235 connect.com.au pty ltd
7474 272 269 200 Optus Communications Pty Ltd
9942 243 73 130 COMindico Australia
4802 234 28 143 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 223 49 49 BHARTI BT INTERNET LTD.
7563 205 48 164 Korea Internet Infrastructure
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 984 AT&T WorldNet Services
701 1270 8423 916 UUNET Technologies, Inc.
1239 947 2883 629 Sprint
2386 831 529 594 AT&T Data Communications Serv
4323 789 633 215 Time Warner Telecom
18566 740 208 6 Covad Communications
6197 722 362 349 BellSouth Network Solutions,
721 718 21019 295 DLA Systems Automation Center
209 624 3465 495 Qwest
3356 588 10923 448 Level 3 Communications, LLC
20115 585 424 298 Charter Communications
3561 530 2486 369 Cable & Wireless USA
852 510 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,
705 428 163 270 UUNET Technologies, Inc.
22773 398 960 18 Cox Communications, Inc. Atla
5668 396 87 18 Century Telephone
27364 394 36 19 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 637 2031 529 UUNET - Commercial IP service
3320 299 2470 237 Deutsche Telekom AG
3301 280 1100 270 TeliaNet Sweden
8220 275 460 262 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 151 29 128 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
8866 147 17 23 Bulgarian Telecommunication C
3269 145 1195 66 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 364 138 67 ImpSat
8151 301 439 133 UniNet S.A. de C.V.
11172 287 100 54 Servicios Alestra 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 127 164 86 AVANTEL, S.A.
7303 126 57 20 Telecom Argentina Stet-France
10620 99 12 5 TVCABLE BOGOTA
11992 90 9 31 Integrated Systems
14420 88 7 36 ANDINATEL S.A.
6535 85 7 19 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
14117 71 6 4 Telefonica del Sur S.A.
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 49 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 740 734 Covad Communications
4134 836 678 Data Communications Bureau
4323 789 574 Time Warner Telecom
9583 533 430 Satyam Infoway Ltd.,
721 718 423 DLA Systems Automation Center
7843 491 393 Adelphia Corp.
22773 398 380 Cox Communications, Inc. Atla
5668 396 378 Century Telephone
27364 394 375 Armstrong Cable Services
6197 722 373 BellSouth Network Solutions,
6467 392 362 E.Spire Communications, Inc.
701 1270 354 UUNET Technologies, Inc.
22909 376 338 Comcast Cable Corporation
1239 947 318 Sprint
4755 366 318 Videsh Sanchar Nigam Ltd. Aut
9929 346 313 China Netcom Corp.
17676 359 312 XTAGE CORPORATION
6140 364 297 ImpSat
6478 361 291 AT&T Worldnet Services
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
/13:135 /14:308 /15:542 /16:8062 /17:2228 /18:3862
/19:9824 /20:10348 /21:7779 /22:10749 /23:12368 /24:80439
/25:241 /26:203 /27:107 /28:58 /29:43 /30:102
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 740 Covad Communications
2386 598 831 AT&T Data Communications Serv
6197 574 722 BellSouth Network Solutions,
7018 556 1412 AT&T WorldNet Services
702 388 637 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
1239 375 947 Sprint
9583 372 533 Satyam Infoway Ltd.,
4766 363 544 Korea Internet Exchange for "
701 356 1270 UUNET Technologies, Inc.
5668 346 396 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
6347 246 332 SAVVIS Communications Corpora
3320 245 299 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1392 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 61:508 62:505 63:1840 64:2338 65:2060
66:2493 67:396 68:550 69:723 70:73 80:523
81:550 82:324 83:158 84:26 111:1 128:121
129:169 130:86 131:189 132:26 134:186 135:17
136:180 137:55 138:174 139:35 140:186 141:107
142:120 143:67 144:158 145:42 146:293 147:94
148:384 149:109 150:87 151:65 152:152 153:68
154:2 155:127 156:59 157:69 158:143 159:163
160:57 161:71 162:376 163:81 164:214 165:161
166:118 167:224 168:294 169:120 170:270 171:9
192:5580 193:2901 194:2121 195:1489 196:588 198:3676
199:3264 200:3841 201:20 202:4838 203:5667 204:3242
205:2095 206:2325 207:2566 208:2142 209:3023 210:1490
211:623 212:1098 213:1198 214:134 215:31 216:3704
217:1003 218:175 219:100 220:254 221:37 222:44
End of report
