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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 04 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149518
Prefixes after maximum aggregation: 88465
Unique aggregates announced to Internet: 71765
Total ASes present in the Internet Routing Table: 18359
Origin-only ASes present in the Internet Routing Table: 15927
Origin ASes announcing only one prefix: 7475
Transit ASes present in the Internet Routing Table: 2432
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1348138856
Equivalent to 80 /8s, 90 /16s and 247 /24s
Percentage of available address space announced: 36.4
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68884
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29121
Total APNIC prefixes after maximum aggregation: 14405
Prefixes being announced from the APNIC address blocks: 27233
Unique aggregates announced from the APNIC address blocks: 14304
APNIC Region origin ASes present in the Internet Routing Table: 2163
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165871488
Equivalent to 9 /8s, 226 /16s and 255 /24s
Percentage of available APNIC address space announced: 75.7
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: 84862
Total ARIN prefixes after maximum aggregation: 51600
Prefixes being announced from the ARIN address blocks: 64885
Unique aggregates announced from the ARIN address blocks: 23354
ARIN Region origin ASes present in the Internet Routing Table: 9653
ARIN Region origin ASes announcing only one prefix: 3473
ARIN Region transit ASes present in the Internet Routing Table: 945
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234507520
Equivalent to 13 /8s, 250 /16s and 77 /24s
Percentage of available ARIN address space announced: 69.9
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: 27792
Total RIPE prefixes after maximum aggregation: 19421
Prefixes being announced from the RIPE address blocks: 24662
Unique aggregates announced from the RIPE address blocks: 16225
RIPE Region origin ASes present in the Internet Routing Table: 5978
RIPE Region origin ASes announcing only one prefix: 3219
RIPE Region transit ASes present in the Internet Routing Table: 1027
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 175983488
Equivalent to 10 /8s, 125 /16s and 75 /24s
Percentage of available RIPE address space announced: 61.7
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: 6506
Total LACNIC prefixes after maximum aggregation: 2350
Prefixes being announced from the LACNIC address blocks: 6369
Unique aggregates announced from the LACNIC address blocks: 3865
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 16323328
Equivalent to 0 /8s, 249 /16s and 19 /24s
Percentage of available LACNIC address space announced: 48.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1232
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 670
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: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /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 855 4391 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
9583 544 41 103 Satyam Infoway Ltd.,
4766 542 3407 266 Korea Internet Exchange for "
4755 378 133 59 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 321 23 160 Pakistan Telecom
703 318 346 245 UUNET
2764 284 273 232 connect.com.au pty ltd
7474 263 268 196 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 233 72 124 COMindico Australia
9498 231 81 53 BHARTI BT INTERNET LTD.
9800 231 380 71 CHINA UNICOM
7563 227 48 164 Korea Internet Infrastructure
10036 209 19 190 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6697 993 AT&T WorldNet Services
701 1238 8415 888 UUNET Technologies, Inc.
1239 925 2881 614 Sprint
2386 848 530 609 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 795 655 217 Time Warner Telecom
721 766 19801 302 DLA Systems Automation Center
18566 749 208 6 Covad Communications
209 640 3434 505 Qwest
3356 639 10953 443 Level 3 Communications, LLC
20115 570 430 306 Charter Communications
3561 559 2417 423 Cable & Wireless USA
852 516 1142 399 Telus Advanced Communications
7843 498 710 95 Adelphia Corp.
7132 445 8288 377 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 436 377 201 BellSouth Network Solutions,
6478 423 731 96 AT&T Worldnet Services
27364 413 36 19 Armstrong Cable Services
22909 409 843 58 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2009 523 UUNET - Commercial IP service
3320 297 2484 234 Deutsche Telekom AG
8220 279 463 266 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 253 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 209 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 160 20 7 Bulgarian Telecommunication C
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 333 138 65 ImpSat
8151 308 455 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 138 90 94 Global One Communicaoes Ltda
7303 135 61 24 Telecom Argentina Stet-France
6503 122 164 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 84 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
11340 71 21 47 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 93 259 65 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
12455 17 4 2 Jambonet Autonomous system
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
21280 13 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 749 743 Covad Communications
4134 855 692 Data Communications Bureau
4323 795 578 Time Warner Telecom
721 766 464 DLA Systems Automation Center
6197 809 459 BellSouth Network Solutions,
9583 544 441 Satyam Infoway Ltd.,
7843 498 403 Adelphia Corp.
27364 413 394 Armstrong Cable Services
5668 407 389 Century Telephone
22773 399 383 Cox Communications, Inc. Atla
6467 403 371 E.Spire Communications, Inc.
22909 409 351 Comcast Cable Corporation
701 1238 350 UUNET Technologies, Inc.
6478 423 327 AT&T Worldnet Services
4755 378 319 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 925 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 542 276 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 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 /12:61
/13:138 /14:314 /15:555 /16:8108 /17:2277 /18:3915
/19:9778 /20:10364 /21:7945 /22:11013 /23:12653 /24:81496
/25:241 /26:222 /27:123 /28:68 /29:54 /30:114
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 613 848 AT&T Data Communications Serv
7018 575 1426 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
702 385 631 UUNET - Commercial IP service
9583 381 544 Satyam Infoway Ltd.,
1239 369 925 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 346 1238 UUNET Technologies, Inc.
6198 317 436 BellSouth Network Solutions,
6467 301 403 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 279 570 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
4323 255 795 Time Warner Telecom
21502 250 253 NUMERICABLE is a cabled netwo
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:745 32:67 33:2 38:81
40:55 44:3 47:2 52:3 55:1 56:3
57:22 60:3 61:613 62:494 63:1841 64:2439
65:2086 66:2478 67:445 68:536 69:752 70:34
72:2 80:501 81:544 82:307 83:198 84:42
128:126 129:164 130:84 131:185 132:26 134:185
135:19 136:185 137:65 138:184 139:39 140:191
141:108 142:123 143:68 144:159 145:42 146:295
147:94 148:328 149:112 150:93 151:65 152:133
153:68 154:2 155:130 156:58 157:67 158:131
159:163 160:61 161:68 162:377 163:81 164:216
165:158 166:119 167:221 168:339 169:122 170:298
171:9 192:5662 193:2920 194:2168 195:1499 196:586
198:3691 199:3286 200:3806 201:23 202:4928 203:5756
204:3549 205:2080 206:2262 207:2559 208:2122 209:3017
210:1516 211:657 212:1133 213:1218 214:131 215:31
216:3699 217:1056 218:175 219:81 220:273 221:65
222:22
End of report
