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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 16 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 145921
Prefixes after maximum aggregation: 87333
Unique aggregates announced to Internet: 69572
Total ASes present in the Internet Routing Table: 18036
Origin-only ASes present in the Internet Routing Table: 15678
Origin ASes announcing only one prefix: 7309
Transit ASes present in the Internet Routing Table: 2358
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 46
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1338384292
Equivalent to 79 /8s, 198 /16s and 31 /24s
Percentage of available address space announced: 36.1
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67119
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27448
Total APNIC prefixes after maximum aggregation: 14211
Prefixes being announced from the APNIC address blocks: 25705
Unique aggregates announced from the APNIC address blocks: 14051
APNIC Region origin ASes present in the Internet Routing Table: 2135
APNIC Region origin ASes announcing only one prefix: 630
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 161338496
Equivalent to 9 /8s, 157 /16s and 212 /24s
Percentage of available APNIC address space announced: 73.6
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: 83583
Total ARIN prefixes after maximum aggregation: 51173
Prefixes being announced from the ARIN address blocks: 64109
Unique aggregates announced from the ARIN address blocks: 22415
ARIN Region origin ASes present in the Internet Routing Table: 9540
ARIN Region origin ASes announcing only one prefix: 3419
ARIN Region transit ASes present in the Internet Routing Table: 927
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233636608
Equivalent to 13 /8s, 237 /16s and 3 /24s
Percentage of available ARIN address space announced: 69.6
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: 27203
Total RIPE prefixes after maximum aggregation: 18986
Prefixes being announced from the RIPE address blocks: 24052
Unique aggregates announced from the RIPE address blocks: 15813
RIPE Region origin ASes present in the Internet Routing Table: 5814
RIPE Region origin ASes announcing only one prefix: 3121
RIPE Region transit ASes present in the Internet Routing Table: 991
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 170906176
Equivalent to 10 /8s, 47 /16s and 210 /24s
Percentage of available RIPE address space announced: 59.9
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: 6389
Total LACNIC prefixes after maximum aggregation: 2271
Prefixes being announced from the LACNIC address blocks: 6124
Unique aggregates announced from the LACNIC address blocks: 3522
LACNIC Region origin ASes present in the Internet Routing Table: 393
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: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16028160
Equivalent to 0 /8s, 244 /16s and 146 /24s
Percentage of available LACNIC address space announced: 47.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1256
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 818
Unique aggregates announced from the AfriNIC address blocks: 641
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: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2054912
Equivalent to 0 /8s, 31 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 12.2
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 545 3408 266 Korea Internet Exchange for "
9583 478 38 131 Satyam Infoway Ltd.,
4755 368 133 51 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
9929 346 161 33 China Netcom Corp.
703 309 341 238 UUNET
17557 309 22 153 Pakistan Telecom
2764 286 274 234 connect.com.au pty ltd
7474 272 270 202 Optus Communications Pty Ltd
9942 232 73 128 COMindico Australia
4802 231 28 141 Wantree Development
9800 229 372 66 CHINA UNICOM
4837 202 2264 106 chinanet IDC center beijing n
10036 201 18 184 C&M Communication Co. Ltd.
17974 201 61 10 PT TELEKOMUNIKASI INDONESIA
9304 188 160 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1406 6736 975 AT&T WorldNet Services
701 1269 8423 912 UUNET Technologies, Inc.
1239 946 2882 629 Sprint
2386 827 545 592 AT&T Data Communications Serv
4323 778 629 214 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 721 361 346 BellSouth Network Solutions,
721 710 21012 294 DLA Systems Automation Center
209 622 3431 494 Qwest
3356 594 10969 454 Level 3 Communications, LLC
20115 585 423 297 Charter Communications
3561 519 2487 370 Cable & Wireless USA
852 510 1141 397 Telus Advanced Communications
7843 488 674 104 Adelphia Corp.
7132 436 8157 378 SBC Internet Services
6198 430 394 199 BellSouth Network Solutions,
705 429 163 271 UUNET Technologies, Inc.
6347 400 159 95 SAVVIS Communications Corpora
22773 394 960 18 Cox Communications, Inc. Atla
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 1098 272 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 213 747 182 SWIPnet Swedish IP Network
8708 203 113 182 Romania Data Systems S.A.
5515 199 842 145 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
5400 156 209 126 BT Ignite European Backbone
6746 155 29 132 Dynamic Network Technologies,
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 365 138 65 ImpSat
11172 355 83 52 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 135 90 93 Global One Communicaoes Ltda
6503 134 187 90 AVANTEL, S.A.
7303 122 55 18 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
14420 86 6 35 ANDINATEL S.A.
6535 84 5 18 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
11311 80 7 20 Sinectis S.A.
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
14117 70 5 4 Telefonica del Sur S.A.
10292 69 6 27 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 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 32 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
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
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 778 564 Time Warner Telecom
721 710 416 DLA Systems Automation Center
7843 488 384 Adelphia Corp.
22773 394 376 Cox Communications, Inc. Atla
6197 721 375 BellSouth Network Solutions,
5668 393 375 Century Telephone
27364 388 369 Armstrong Cable Services
6467 389 359 E.Spire Communications, Inc.
701 1269 357 UUNET Technologies, Inc.
9583 478 347 Satyam Infoway Ltd.,
22909 363 327 Comcast Cable Corporation
1239 946 317 Sprint
4755 368 317 Videsh Sanchar Nigam Ltd. Aut
9929 346 313 China Netcom Corp.
17676 348 309 XTAGE CORPORATION
6347 400 305 SAVVIS Communications Corpora
11172 355 303 Servicios Alestra S.A de C.V
6140 365 300 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
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 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 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 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 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 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 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 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 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 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 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 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 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 /8:20 /9:3 /10:6 /11:15 /12:63
/13:134 /14:305 /15:540 /16:8039 /17:2205 /18:3838
/19:9777 /20:10292 /21:7748 /22:10632 /23:12249 /24:79349
/25:235 /26:191 /27:102 /28:49 /29:30 /30:68
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 594 827 AT&T Data Communications Serv
6197 573 721 BellSouth Network Solutions,
7018 553 1406 AT&T WorldNet Services
702 387 634 UUNET - Commercial IP service
1239 373 946 Sprint
27364 372 388 Armstrong Cable Services
4766 363 545 Korea Internet Exchange for "
701 356 1269 UUNET Technologies, Inc.
5668 343 393 Century Telephone
9583 333 478 Satyam Infoway Ltd.,
6198 317 430 BellSouth Network Solutions,
20115 299 585 Charter Communications
6347 297 400 SAVVIS Communications Corpora
6467 287 389 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 263 306 Choice One Communications Inc
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1396 13:1 15:5 16:1
17:3 20:9 24:724 32:66 33:2 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:449 62:491 63:1833 64:2324 65:2061
66:2469 67:388 68:537 69:717 70:69 80:517
81:546 82:317 83:146 84:26 111:1 128:110
129:168 130:87 131:187 132:26 134:183 135:17
136:74 137:55 138:169 139:35 140:182 141:107
142:120 143:67 144:151 145:41 146:294 147:94
148:424 149:108 150:87 151:70 152:157 153:68
154:2 155:127 156:58 157:71 158:142 159:160
160:57 161:70 162:383 163:81 164:207 165:159
166:111 167:222 168:291 169:115 170:270 171:9
192:5583 193:2896 194:2128 195:1478 196:574 198:3670
199:3254 200:3678 201:16 202:4534 203:5437 204:3232
205:2092 206:2318 207:2538 208:2149 209:3038 210:1453
211:624 212:1075 213:1187 214:129 215:31 216:3726
217:1001 218:191 219:101 220:247 221:37 222:44
End of report
