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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 17 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 146729
Prefixes after maximum aggregation: 87328
Unique aggregates announced to Internet: 70024
Total ASes present in the Internet Routing Table: 18051
Origin-only ASes present in the Internet Routing Table: 15688
Origin ASes announcing only one prefix: 7314
Transit ASes present in the Internet Routing Table: 2363
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: 46
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1337644452
Equivalent to 79 /8s, 186 /16s and 213 /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: 67281
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28164
Total APNIC prefixes after maximum aggregation: 14188
Prefixes being announced from the APNIC address blocks: 26419
Unique aggregates announced from the APNIC address blocks: 14170
APNIC Region origin ASes present in the Internet Routing Table: 2141
APNIC Region origin ASes announcing only one prefix: 635
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: 161908864
Equivalent to 9 /8s, 166 /16s and 136 /24s
Percentage of available APNIC address space announced: 73.9
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: 83657
Total ARIN prefixes after maximum aggregation: 51162
Prefixes being announced from the ARIN address blocks: 64100
Unique aggregates announced from the ARIN address blocks: 22731
ARIN Region origin ASes present in the Internet Routing Table: 9543
ARIN Region origin ASes announcing only one prefix: 3418
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: 19
Number of ARIN addresses announced to Internet: 232490752
Equivalent to 13 /8s, 219 /16s and 135 /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: 27242
Total RIPE prefixes after maximum aggregation: 19014
Prefixes being announced from the RIPE address blocks: 24083
Unique aggregates announced from the RIPE address blocks: 15834
RIPE Region origin ASes present in the Internet Routing Table: 5819
RIPE Region origin ASes announcing only one prefix: 3122
RIPE Region transit ASes present in the Internet Routing Table: 990
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170962496
Equivalent to 10 /8s, 48 /16s and 174 /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: 6374
Total LACNIC prefixes after maximum aggregation: 2272
Prefixes being announced from the LACNIC address blocks: 6165
Unique aggregates announced from the LACNIC address blocks: 3509
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: 16027904
Equivalent to 0 /8s, 244 /16s and 145 /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: 1250
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 826
Unique aggregates announced from the AfriNIC address blocks: 658
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: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2059008
Equivalent to 0 /8s, 31 /16s and 107 /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 809 1184 583 Telstra Pty Ltd
4766 545 3408 266 Korea Internet Exchange for "
9583 530 41 102 Satyam Infoway Ltd.,
4755 367 133 49 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 81 Primus Telecommunications
2907 353 1841 327 SINET Japan
17676 349 5196 40 XTAGE CORPORATION
9929 347 161 33 China Netcom Corp.
703 310 341 239 UUNET
17557 309 22 153 Pakistan Telecom
2764 285 274 234 connect.com.au pty ltd
7474 271 269 200 Optus Communications Pty Ltd
4802 232 28 142 Wantree Development
9942 232 73 128 COMindico Australia
9800 229 372 66 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 1408 6736 975 AT&T WorldNet Services
701 1266 8422 909 UUNET Technologies, Inc.
1239 945 2882 628 Sprint
2386 829 545 594 AT&T Data Communications Serv
4323 776 613 212 Time Warner Telecom
18566 739 208 6 Covad Communications
6197 723 362 346 BellSouth Network Solutions,
721 716 21011 295 DLA Systems Automation Center
209 622 3462 494 Qwest
3356 594 10969 454 Level 3 Communications, LLC
20115 585 423 297 Charter Communications
3561 517 2487 368 Cable & Wireless USA
852 509 1141 396 Telus Advanced Communications
7843 489 676 100 Adelphia Corp.
7132 434 8157 376 SBC Internet Services
6198 429 394 199 BellSouth Network Solutions,
705 428 163 270 UUNET Technologies, Inc.
6347 400 159 95 SAVVIS Communications Corpora
22773 396 960 18 Cox Communications, Inc. Atla
27364 395 36 19 Armstrong Cable Services
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 279 1098 269 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
13083 217 51 8 Mannesmann Datenverarbeitung
3246 215 475 212 Song Networks
1257 213 747 182 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
786 177 1794 177 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 365 138 65 ImpSat
11172 355 83 52 Servicios Alestra S.A de C.V
8151 302 455 134 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 132 171 88 AVANTEL, S.A.
7303 122 55 18 Telecom Argentina Stet-France
11992 89 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
14117 71 6 4 Telefonica del Sur S.A.
4270 70 18 9 Red de Interconexion Universi
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 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
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 776 564 Time Warner Telecom
9583 530 428 Satyam Infoway Ltd.,
721 716 421 DLA Systems Automation Center
7843 489 389 Adelphia Corp.
22773 396 378 Cox Communications, Inc. Atla
6197 723 377 BellSouth Network Solutions,
27364 395 376 Armstrong Cable Services
5668 393 375 Century Telephone
701 1266 357 UUNET Technologies, Inc.
6467 385 355 E.Spire Communications, Inc.
22909 362 325 Comcast Cable Corporation
4755 367 318 Videsh Sanchar Nigam Ltd. Aut
1239 945 317 Sprint
9929 347 314 China Netcom Corp.
17676 349 309 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 /8:19 /9:3 /10:6 /11:15 /12:63
/13:134 /14:305 /15:541 /16:8038 /17:2213 /18:3848
/19:9804 /20:10315 /21:7753 /22:10686 /23:12323 /24:79957
/25:237 /26:191 /27:103 /28:49 /29:29 /30:66
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 739 Covad Communications
2386 595 829 AT&T Data Communications Serv
6197 575 723 BellSouth Network Solutions,
7018 554 1408 AT&T WorldNet Services
702 388 634 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
1239 373 945 Sprint
9583 370 530 Satyam Infoway Ltd.,
4766 363 545 Korea Internet Exchange for "
701 356 1266 UUNET Technologies, Inc.
5668 343 393 Century Telephone
6198 316 429 BellSouth Network Solutions,
20115 299 585 Charter Communications
6347 297 400 SAVVIS Communications Corpora
6467 283 385 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
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1397 13:1 15:5 16:2
17:3 20:9 24:731 32:66 33:2 38:79
40:54 44:4 55:1 56:3 57:17 60:6
61:498 62:486 63:1829 64:2326 65:2061 66:2477
67:388 68:535 69:716 70:69 80:522 81:555
82:317 83:146 84:26 111:1 128:108 129:168
130:87 131:188 132:23 134:182 135:17 136:67
137:55 138:169 139:36 140:184 141:107 142:120
143:67 144:156 145:41 146:294 147:94 148:423
149:108 150:85 151:70 152:158 153:68 154:2
155:127 156:58 157:71 158:142 159:161 160:57
161:70 162:383 163:81 164:210 165:159 166:115
167:223 168:293 169:115 170:270 171:9 192:5581
193:2893 194:2127 195:1479 196:583 198:3667 199:3224
200:3717 201:16 202:4823 203:5658 204:3236 205:2087
206:2317 207:2532 208:2146 209:3045 210:1486 211:624
212:1073 213:1187 214:131 215:31 216:3724 217:1004
218:177 219:101 220:247 221:37 222:44
End of report
