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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 20 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147037
Prefixes after maximum aggregation: 87368
Unique aggregates announced to Internet: 70148
Total ASes present in the Internet Routing Table: 18063
Origin-only ASes present in the Internet Routing Table: 15697
Origin ASes announcing only one prefix: 7327
Transit ASes present in the Internet Routing Table: 2366
Transit-only ASes present in the Internet Routing Table: 74
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: 1337884064
Equivalent to 79 /8s, 190 /16s and 125 /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: 67450
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28166
Total APNIC prefixes after maximum aggregation: 14204
Prefixes being announced from the APNIC address blocks: 26420
Unique aggregates announced from the APNIC address blocks: 14217
APNIC Region origin ASes present in the Internet Routing Table: 2140
APNIC Region origin ASes announcing only one prefix: 636
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 162103424
Equivalent to 9 /8s, 169 /16s and 128 /24s
Percentage of available APNIC address space announced: 74.0
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: 83827
Total ARIN prefixes after maximum aggregation: 51179
Prefixes being announced from the ARIN address blocks: 64148
Unique aggregates announced from the ARIN address blocks: 22756
ARIN Region origin ASes present in the Internet Routing Table: 9551
ARIN Region origin ASes announcing only one prefix: 3422
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232591616
Equivalent to 13 /8s, 221 /16s and 17 /24s
Percentage of available ARIN address space announced: 69.3
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: 27268
Total RIPE prefixes after maximum aggregation: 19015
Prefixes being announced from the RIPE address blocks: 24113
Unique aggregates announced from the RIPE address blocks: 15848
RIPE Region origin ASes present in the Internet Routing Table: 5824
RIPE Region origin ASes announcing only one prefix: 3129
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: 171321664
Equivalent to 10 /8s, 54 /16s and 41 /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: 6472
Total LACNIC prefixes after maximum aggregation: 2278
Prefixes being announced from the LACNIC address blocks: 6263
Unique aggregates announced from the LACNIC address blocks: 3559
LACNIC Region origin ASes present in the Internet Routing Table: 392
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16065536
Equivalent to 0 /8s, 245 /16s and 36 /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: 1250
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 811
Unique aggregates announced from the AfriNIC address blocks: 648
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: 12
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2056448
Equivalent to 0 /8s, 31 /16s and 97 /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 810 1184 583 Telstra Pty Ltd
4766 545 3408 266 Korea Internet Exchange for "
9583 531 41 103 Satyam Infoway Ltd.,
4755 366 133 49 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 81 Primus Telecommunications
17676 353 5260 43 XTAGE CORPORATION
2907 352 1841 326 SINET Japan
9929 347 161 33 China Netcom Corp.
17557 313 22 155 Pakistan Telecom
703 311 342 240 UUNET
2764 283 274 232 connect.com.au pty ltd
7474 270 269 200 Optus Communications Pty Ltd
9942 234 73 130 COMindico Australia
4802 232 28 142 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 223 49 49 BHARTI BT INTERNET LTD.
4837 202 2264 106 chinanet IDC center beijing n
10036 202 18 185 C&M Communication Co. Ltd.
17974 192 62 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1413 6753 979 AT&T WorldNet Services
701 1263 8422 909 UUNET Technologies, Inc.
1239 946 2882 629 Sprint
2386 830 545 595 AT&T Data Communications Serv
4323 776 613 212 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 722 362 350 BellSouth Network Solutions,
721 710 21012 294 DLA Systems Automation Center
209 622 3465 495 Qwest
3356 588 10923 448 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 489 676 100 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
702 633 2015 525 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
3301 282 1098 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 211 745 180 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
786 176 1794 176 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 155 29 132 Dynamic Network Technologies,
5400 154 209 124 BT Ignite European Backbone
25186 153 154 109 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 138 16 20 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 138 65 ImpSat
11172 340 100 54 Servicios Alestra S.A de C.V
8151 301 439 133 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 191 86 19 Telefonica Del Peru
11664 154 11 21 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 82 7 21 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 48 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
6713 32 42 10 Itissalat Al-MAGHRIB
9129 31 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 776 564 Time Warner Telecom
9583 531 428 Satyam Infoway Ltd.,
721 710 416 DLA Systems Automation Center
7843 489 389 Adelphia Corp.
22773 397 379 Cox Communications, Inc. Atla
27364 395 376 Armstrong Cable Services
5668 393 375 Century Telephone
6197 722 372 BellSouth Network Solutions,
6467 389 359 E.Spire Communications, Inc.
701 1263 354 UUNET Technologies, Inc.
22909 366 329 Comcast Cable Corporation
1239 946 317 Sprint
4755 366 317 Videsh Sanchar Nigam Ltd. Aut
9929 347 314 China Netcom Corp.
17676 353 310 XTAGE CORPORATION
6140 361 296 ImpSat
4355 389 290 EarthLink, Inc.
6478 360 289 AT&T Worldnet Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
65115 PRIVATE 64.28.115.0/24 20385 AccessLine Communica
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
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 /14:304 /15:541 /16:8037 /17:2215 /18:3843
/19:9804 /20:10321 /21:7773 /22:10708 /23:12318 /24:80166
/25:234 /26:197 /27:106 /28:56 /29:39 /30:91
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 596 830 AT&T Data Communications Serv
6197 574 722 BellSouth Network Solutions,
7018 556 1413 AT&T WorldNet Services
702 388 633 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
1239 374 946 Sprint
9583 370 531 Satyam Infoway Ltd.,
4766 363 545 Korea Internet Exchange for "
701 353 1263 UUNET Technologies, Inc.
5668 343 393 Century Telephone
6198 317 431 BellSouth Network Solutions,
20115 292 578 Charter Communications
6467 287 389 E.Spire Communications, Inc.
9929 278 347 China Netcom Corp.
6517 269 296 Yipes Communications, Inc.
21502 265 268 NUMERICABLE is a cabled netwo
13609 263 306 Choice One Communications Inc
6347 253 339 SAVVIS Communications Corpora
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1390 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 61:489 62:490 63:1836 64:2340 65:2056
66:2474 67:391 68:536 69:720 70:71 80:524
81:547 82:317 83:147 84:26 111:1 128:117
129:169 130:87 131:186 132:25 134:182 135:17
136:164 137:55 138:170 139:35 140:184 141:106
142:120 143:67 144:157 145:41 146:294 147:94
148:425 149:108 150:88 151:70 152:152 153:68
154:2 155:128 156:59 157:71 158:141 159:161
160:56 161:69 162:379 163:79 164:214 165:159
166:118 167:224 168:293 169:115 170:269 171:9
192:5584 193:2897 194:2129 195:1483 196:568 198:3670
199:3252 200:3811 201:16 202:4821 203:5647 204:3236
205:2086 206:2319 207:2548 208:2140 209:3029 210:1485
211:626 212:1075 213:1193 214:133 215:31 216:3722
217:1001 218:176 219:101 220:249 221:37 222:42
End of report
