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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 146422
Prefixes after maximum aggregation: 87063
Unique aggregates announced to Internet: 69938
Total ASes present in the Internet Routing Table: 17993
Origin-only ASes present in the Internet Routing Table: 15624
Origin ASes announcing only one prefix: 7282
Transit ASes present in the Internet Routing Table: 2369
Transit-only ASes present in the Internet Routing Table: 78
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: 39
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1335108004
Equivalent to 79 /8s, 148 /16s and 33 /24s
Percentage of available address space announced: 36.0
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67049
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27996
Total APNIC prefixes after maximum aggregation: 14143
Prefixes being announced from the APNIC address blocks: 26225
Unique aggregates announced from the APNIC address blocks: 14215
APNIC Region origin ASes present in the Internet Routing Table: 2131
APNIC Region origin ASes announcing only one prefix: 634
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 160812416
Equivalent to 9 /8s, 149 /16s and 205 /24s
Percentage of available APNIC address space announced: 73.4
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: 83624
Total ARIN prefixes after maximum aggregation: 51004
Prefixes being announced from the ARIN address blocks: 63986
Unique aggregates announced from the ARIN address blocks: 22616
ARIN Region origin ASes present in the Internet Routing Table: 9511
ARIN Region origin ASes announcing only one prefix: 3397
ARIN Region transit ASes present in the Internet Routing Table: 919
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 231278368
Equivalent to 13 /8s, 201 /16s and 7 /24s
Percentage of available ARIN address space announced: 68.9
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: 27103
Total RIPE prefixes after maximum aggregation: 18953
Prefixes being announced from the RIPE address blocks: 23942
Unique aggregates announced from the RIPE address blocks: 15788
RIPE Region origin ASes present in the Internet Routing Table: 5800
RIPE Region origin ASes announcing only one prefix: 3113
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: 170554432
Equivalent to 10 /8s, 42 /16s and 116 /24s
Percentage of available RIPE address space announced: 59.8
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: 6405
Total LACNIC prefixes after maximum aggregation: 2270
Prefixes being announced from the LACNIC address blocks: 6172
Unique aggregates announced from the LACNIC address blocks: 3538
LACNIC Region origin ASes present in the Internet Routing Table: 391
LACNIC Region origin ASes announcing only one prefix: 117
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15855360
Equivalent to 0 /8s, 241 /16s and 239 /24s
Percentage of available LACNIC address space announced: 47.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1255
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 827
Unique aggregates announced from the AfriNIC address blocks: 662
AfriNIC Region origin ASes present in the Internet Routing Table: 92
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: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2060032
Equivalent to 0 /8s, 31 /16s and 111 /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 832 4193 156 Data Communications Bureau
1221 812 1184 586 Telstra Pty Ltd
4766 565 3409 266 Korea Internet Exchange for "
9583 531 41 102 Satyam Infoway Ltd.,
4755 366 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 356 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 351 1839 325 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
17557 315 22 155 Pakistan Telecom
703 312 341 241 UUNET
2764 284 274 232 connect.com.au pty ltd
7474 272 270 202 Optus Communications Pty Ltd
4802 233 28 143 Wantree Development
9942 232 73 127 COMindico Australia
9800 228 372 66 CHINA UNICOM
9498 225 49 50 BHARTI BT INTERNET LTD.
17974 202 61 10 PT TELEKOMUNIKASI INDONESIA
4837 201 2256 105 chinanet IDC center beijing n
10036 201 18 184 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1396 6751 965 AT&T WorldNet Services
701 1274 8423 916 UUNET Technologies, Inc.
1239 938 2867 626 Sprint
2386 823 560 587 AT&T Data Communications Serv
4323 779 633 216 Time Warner Telecom
18566 739 208 6 Covad Communications
721 715 21036 296 DLA Systems Automation Center
6197 715 362 339 BellSouth Network Solutions,
209 619 3431 496 Qwest
20115 583 414 295 Charter Communications
3356 578 10983 446 Level 3 Communications, LLC
6347 541 296 118 SAVVIS Communications Corpora
852 511 1141 398 Telus Advanced Communications
7843 486 671 111 Adelphia Corp.
3561 466 2390 346 Cable & Wireless USA
6198 450 401 210 BellSouth Network Solutions,
7132 435 8029 377 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6467 395 149 30 E.Spire Communications, Inc.
22773 394 960 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 642 2031 532 UUNET - Commercial IP service
3320 302 2470 239 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 272 428 259 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 182 876 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 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
3303 147 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 135 16 18 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 402 138 67 ImpSat
11172 356 99 53 Servicios Alestra S.A de C.V
8151 285 406 131 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 121 55 19 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
14420 86 6 34 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 78 7 19 Sinectis S.A.
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
10292 69 6 27 TELECOMMUNICATIONS OF JAMAICA
14117 69 5 4 Telefonica del Sur S.A.
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 49 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
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
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
21491 14 1 3 UTL On-line is RF broadband I
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 832 676 Data Communications Bureau
4323 779 563 Time Warner Telecom
9583 531 429 Satyam Infoway Ltd.,
6347 541 423 SAVVIS Communications Corpora
721 715 419 DLA Systems Automation Center
6197 715 376 BellSouth Network Solutions,
7843 486 375 Adelphia Corp.
22773 394 375 Cox Communications, Inc. Atla
5668 393 375 Century Telephone
6467 395 365 E.Spire Communications, Inc.
701 1274 358 UUNET Technologies, Inc.
27364 365 346 Armstrong Cable Services
6140 402 335 ImpSat
22909 365 330 Comcast Cable Corporation
9929 356 322 China Netcom Corp.
4755 366 316 Videsh Sanchar Nigam Ltd. Aut
1239 938 312 Sprint
17676 348 309 XTAGE CORPORATION
11172 356 303 Servicios Alestra S.A de C.V
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
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
37799 UNALLOCATED 195.214.216.0/21 30799 VERANET Internet Ser
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
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
/13:133 /14:302 /15:541 /16:8029 /17:2203 /18:3815
/19:9750 /20:10289 /21:7710 /22:10647 /23:12288 /24:79891
/25:245 /26:195 /27:100 /28:39 /29:23 /30:72
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 591 823 AT&T Data Communications Serv
6197 569 715 BellSouth Network Solutions,
7018 542 1396 AT&T WorldNet Services
702 395 642 UUNET - Commercial IP service
6347 390 541 SAVVIS Communications Corpora
9583 371 531 Satyam Infoway Ltd.,
1239 369 938 Sprint
4766 368 565 Korea Internet Exchange for "
701 358 1274 UUNET Technologies, Inc.
27364 349 365 Armstrong Cable Services
5668 343 393 Century Telephone
6198 329 450 BellSouth Network Solutions,
20115 302 583 Charter Communications
6467 291 395 E.Spire Communications, Inc.
9929 285 356 China Netcom Corp.
6517 267 294 Yipes Communications, Inc.
21502 265 268 NUMERICABLE is a cabled netwo
13609 261 304 Choice One Communications Inc
3320 248 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:1386 13:1 15:5 16:2
17:3 20:9 24:704 32:68 33:3 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:471 62:511 63:1838 64:2296 65:2059
66:2444 67:386 68:535 69:705 70:36 80:517
81:539 82:310 83:142 84:27 128:105 129:171
130:87 131:190 132:26 134:187 135:17 136:186
137:55 138:168 139:38 140:162 141:107 142:120
143:67 144:155 145:41 146:289 147:95 148:417
149:106 150:86 151:70 152:168 153:68 154:2
155:129 156:58 157:79 158:142 159:160 160:56
161:71 162:388 163:81 164:205 165:159 166:109
167:222 168:290 169:114 170:270 171:9 192:5598
193:2887 194:2118 195:1464 196:584 198:3667 199:3255
200:3752 201:16 202:4822 203:5649 204:3226 205:2086
206:2321 207:2542 208:2146 209:3060 210:1483 211:602
212:1035 213:1191 214:130 215:31 216:3732 217:994
218:193 219:85 220:247 221:37 222:43
End of report
