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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 26 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142862
Prefixes after maximum aggregation: 85620
Unique aggregates announced to Internet: 68683
Total ASes present in the Internet Routing Table: 17659
Origin-only ASes present in the Internet Routing Table: 15318
Origin ASes announcing only one prefix: 7174
Transit ASes present in the Internet Routing Table: 2341
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1304816032
Equivalent to 77 /8s, 197 /16s and 233 /24s
Percentage of available address space announced: 35.2
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27458
Total APNIC prefixes after maximum aggregation: 13989
Prefixes being announced from the APNIC address blocks: 25675
Unique aggregates announced from the APNIC address blocks: 14024
APNIC Region origin ASes present in the Internet Routing Table: 2083
APNIC Region origin ASes announcing only one prefix: 620
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 153462016
Equivalent to 9 /8s, 37 /16s and 165 /24s
Percentage of available APNIC address space announced: 70.0
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: 81664
Total ARIN prefixes after maximum aggregation: 50043
Prefixes being announced from the ARIN address blocks: 63463
Unique aggregates announced from the ARIN address blocks: 22050
ARIN Region origin ASes present in the Internet Routing Table: 9336
ARIN Region origin ASes announcing only one prefix: 3349
ARIN Region transit ASes present in the Internet Routing Table: 921
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 227958816
Equivalent to 13 /8s, 150 /16s and 96 /24s
Percentage of available ARIN address space announced: 75.5
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, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26393
Total RIPE prefixes after maximum aggregation: 18647
Prefixes being announced from the RIPE address blocks: 23179
Unique aggregates announced from the RIPE address blocks: 15381
RIPE Region origin ASes present in the Internet Routing Table: 5693
RIPE Region origin ASes announcing only one prefix: 3072
RIPE Region transit ASes present in the Internet Routing Table: 977
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 167487168
Equivalent to 9 /8s, 251 /16s and 166 /24s
Percentage of available RIPE address space announced: 58.7
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: 6140
Total LACNIC prefixes after maximum aggregation: 2266
Prefixes being announced from the LACNIC address blocks: 5814
Unique aggregates announced from the LACNIC address blocks: 3539
LACNIC Region origin ASes present in the Internet Routing Table: 385
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15359488
Equivalent to 0 /8s, 234 /16s and 94 /24s
Percentage of available LACNIC address space announced: 45.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1199
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 818
Unique aggregates announced from the AfriNIC address blocks: 645
AfriNIC Region origin ASes present in the Internet Routing Table: 89
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1903616
Equivalent to 0 /8s, 29 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 11.3
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 812 4096 150 Data Communications Bureau
1221 810 1056 583 Telstra Pty Ltd
4766 502 2895 265 Korea Internet Exchange for "
9583 489 39 109 Satyam Infoway Ltd.,
4755 398 134 54 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 329 159 31 China Netcom Corp.
17557 321 22 164 Pakistan Telecom
703 316 342 245 UUNET
2764 289 258 236 connect.com.au pty ltd
7474 267 269 205 Optus Communications Pty Ltd
9942 237 71 130 COMindico Australia
9800 225 369 62 CHINA UNICOM
4802 223 25 138 Wantree Development
9498 223 48 52 BHARTI BT INTERNET LTD.
17633 211 54 8 ASN for Shandong Provincial N
10036 197 18 178 C&M Communication Co. Ltd.
4837 191 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1425 6874 993 AT&T
701 1312 8443 943 UUNET Technologies, Inc.
6347 947 387 124 SAVVIS Communications Corpora
1239 930 2870 619 Sprint
3356 885 10929 668 Level 3 Communications, LLC
4323 741 570 212 Time Warner Communications, I
18566 733 192 8 Covad Communications
6197 721 479 301 BellSouth Network Solutions,
209 612 3427 499 Qwest
20115 566 376 291 Charter Communications
721 564 20760 261 DLA Systems Automation Center
852 511 1142 399 Telus Advanced Communications
7843 511 669 127 Adelphia Corp.
7132 486 7897 368 Southwestern Bell Internet Se
6198 449 394 203 BellSouth Network Solutions,
2386 411 533 230 AT&T Data Communications Serv
22909 397 831 34 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
22773 387 774 58 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2038 539 UUNET - Commercial IP service
3320 300 2468 237 Deutsche Telekom AG
3301 281 1098 270 TeliaNet Sweden
8220 276 433 264 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 217 747 186 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 215 484 212 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 192 113 176 Romania Data Systems S.A.
3215 182 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 158 29 128 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 146 207 121 BT Ignite European Backbone
3269 138 1131 63 TELECOM ITALIA
8866 132 15 14 Bulgarian Telecommunication C
3303 131 610 130 Swisscom Ltd
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 352 99 54 Servicios Alestra S.A de C.V
6140 332 140 65 ImpSat
8151 277 389 126 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 185 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
6503 128 202 86 AVANTEL, S.A.
11664 128 11 21 Keytech SA
7303 119 55 18 Telecom Argentina Stet-France
11992 91 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 81 5 31 ANDINATEL S.A.
11311 80 7 18 Sinectis S.A.
15311 75 19 37 Telefonica Empresas
5639 71 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
11340 67 5 36 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 218 The Internet Solution
5536 112 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
11845 42 9 11 Data Pro Business Online
20928 42 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
14988 28 16 1 Botswana Telecommunications C
9129 27 3 4 UUNET Kenya
6713 26 38 9 Itissalat Al-MAGHRIB
5713 25 125 23 Telkom SA Ltd
8524 24 2 7 AUCEGYPT Autonomous System
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 15 3 10 Vodacom Internet Company
15706 15 4 2 Sudatel Internet Exchange Aut
8346 13 6 12 SONATEL-AS Autonomous System
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
6347 947 823 SAVVIS Communications Corpora
18566 733 725 Covad Communications
4134 812 662 Data Communications Bureau
4323 741 529 Time Warner Communications, I
6197 721 420 BellSouth Network Solutions,
7843 511 384 Adelphia Corp.
9583 489 380 Satyam Infoway Ltd.,
701 1312 369 UUNET Technologies, Inc.
5668 383 365 Century Telephone
22909 397 363 Comcast Cable Corporation
4755 398 344 Videsh Sanchar Nigam Ltd. Aut
6467 369 336 E.Spire Communications, Inc.
27364 349 330 Armstrong Cable Services
22773 387 329 Cox Communications, Inc. Atla
1239 930 311 Sprint
17676 341 308 XTAGE CORPORATION
721 564 303 DLA Systems Automation Center
11172 352 298 Servicios Alestra S.A de C.V
9929 329 298 China Netcom Corp.
4355 391 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65534 PRIVATE 80.68.80.0/20 8943 Jump Networks Ltd.
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm
63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm
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
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 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
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 /8:18 /9:3 /10:6 /11:15 /12:61
/13:127 /14:301 /15:530 /16:7913 /17:2123 /18:3712
/19:9552 /20:10072 /21:7394 /22:10397 /23:11889 /24:78088
/25:219 /26:197 /27:116 /28:35 /29:16 /30:68
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 730 947 SAVVIS Communications Corpora
18566 716 733 Covad Communications
6197 552 721 BellSouth Network Solutions,
7018 549 1425 AT&T
3356 500 885 Level 3 Communications, LLC
702 397 648 UUNET - Commercial IP service
701 387 1312 UUNET Technologies, Inc.
1239 361 930 Sprint
5668 336 383 Century Telephone
9583 336 489 Satyam Infoway Ltd.,
27364 336 349 Armstrong Cable Services
6198 331 449 BellSouth Network Solutions,
4766 317 502 Korea Internet Exchange for "
20115 300 566 Charter Communications
6467 268 369 E.Spire Communications, Inc.
9929 260 329 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 248 300 Deutsche Telekom AG
13609 246 289 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:1 12:835 13:1 15:5 16:2
17:3 20:7 24:738 32:66 33:2 38:74
40:54 44:4 55:1 56:3 57:16 60:5
61:440 62:510 63:1888 64:2073 65:2035 66:2715
67:345 68:506 69:691 70:64 80:547 81:349
82:190 83:115 84:7 128:153 129:171 130:81
131:181 132:20 134:177 135:17 136:175 137:55
138:165 139:35 140:165 141:105 142:119 143:60
144:100 145:42 146:282 147:93 148:417 149:109
150:91 151:69 152:162 153:64 154:2 155:126
156:57 157:66 158:138 159:147 160:53 161:65
162:386 163:78 164:185 165:161 166:111 167:218
168:231 169:114 170:285 171:8 192:5551 193:2832
194:2063 195:1398 196:580 198:3646 199:3258 200:3563
201:8 202:4768 203:5681 204:3118 205:2080 206:2263
207:2502 208:2176 209:3057 210:1454 211:575 212:1000
213:1191 214:70 215:30 216:3766 217:970 218:171
219:123 220:222 221:30 222:108
End of report
