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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 02 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141614
Prefixes after maximum aggregation: 85191
Unique aggregates announced to Internet: 68244
Total ASes present in the Internet Routing Table: 17502
Origin-only ASes present in the Internet Routing Table: 15158
Origin ASes announcing only one prefix: 7093
Transit ASes present in the Internet Routing Table: 2344
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1316562088
Equivalent to 78 /8s, 121 /16s and 36 /24s
Percentage of available address space announced: 35.5
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64891
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27199
Total APNIC prefixes after maximum aggregation: 14032
Prefixes being announced from the APNIC address blocks: 25414
Unique aggregates announced from the APNIC address blocks: 13930
APNIC Region origin ASes present in the Internet Routing Table: 2064
APNIC Region origin ASes announcing only one prefix: 617
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 151099008
Equivalent to 9 /8s, 1 /16s and 150 /24s
Percentage of available APNIC address space announced: 68.9
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: 80963
Total ARIN prefixes after maximum aggregation: 49737
Prefixes being announced from the ARIN address blocks: 62841
Unique aggregates announced from the ARIN address blocks: 21972
ARIN Region origin ASes present in the Internet Routing Table: 9276
ARIN Region origin ASes announcing only one prefix: 3311
ARIN Region transit ASes present in the Internet Routing Table: 904
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 227126048
Equivalent to 13 /8s, 137 /16s and 171 /24s
Percentage of available ARIN address space announced: 75.2
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: 26101
Total RIPE prefixes after maximum aggregation: 18492
Prefixes being announced from the RIPE address blocks: 22871
Unique aggregates announced from the RIPE address blocks: 15185
RIPE Region origin ASes present in the Internet Routing Table: 5622
RIPE Region origin ASes announcing only one prefix: 3033
RIPE Region transit ASes present in the Internet Routing Table: 986
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 165929280
Equivalent to 9 /8s, 227 /16s and 225 /24s
Percentage of available RIPE address space announced: 58.2
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: 6173
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 5819
Unique aggregates announced from the LACNIC address blocks: 3552
LACNIC Region origin ASes present in the Internet Routing Table: 376
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15214080
Equivalent to 0 /8s, 232 /16s and 38 /24s
Percentage of available LACNIC address space announced: 45.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1177
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 778
Unique aggregates announced from the AfriNIC address blocks: 584
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1886720
Equivalent to 0 /8s, 28 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 11.2
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 824 1041 594 Telstra Pty Ltd
4134 793 3664 147 Data Communications Bureau
4766 495 2895 263 Korea Internet Exchange for "
9583 473 39 101 Satyam Infoway Ltd.,
4755 376 134 55 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17557 341 24 168 Pakistan Telecom
17676 341 5084 33 XTAGE CORPORATION
9929 324 156 33 China Netcom Corp.
703 321 358 250 UUNET
2764 293 258 240 connect.com.au pty ltd
7474 263 268 206 Optus Communications Pty Ltd
9942 233 71 129 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 218 48 49 BHARTI BT INTERNET LTD.
10026 198 11 135 IXNet Hong Kong Limited
10036 198 18 179 C&M Communication Co. Ltd.
4837 188 2019 105 chinanet IDC center beijing n
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1442 6880 993 AT&T
701 1304 8487 931 UUNET Technologies, Inc.
6347 984 400 100 SAVVIS Communications Corpora
1239 936 2889 629 Sprint
3356 895 10917 677 Level 3 Communications, LLC
4323 735 553 204 Time Warner Communications, I
18566 725 192 8 Covad Communications
6197 710 526 278 BellSouth Network Solutions,
209 611 3454 504 Qwest
20115 563 374 289 Charter Communications
6198 514 396 212 BellSouth Network Solutions,
852 512 1142 400 Telus Advanced Communications
7843 512 663 129 Adelphia Corp.
7132 456 7872 342 Southwestern Bell Internet Se
2386 424 565 226 AT&T Data Communications Serv
22909 393 825 26 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
22773 389 782 56 Cox Communications, Inc. Atla
721 387 13262 278 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2039 540 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 295 1098 268 TeliaNet Sweden
8220 275 429 263 COLT Internet - International
1257 249 498 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 476 208 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 187 112 174 Romania Data Systems S.A.
3215 183 895 70 France Telecom Transpac
719 181 288 103 LANLINK autonomous system
786 174 1794 174 The JANET IP Service
25186 174 156 115 France Telecom Transpac's Tra
6746 156 29 127 Dynamic Network Technologies,
5400 143 205 121 BT Ignite European Backbone
3269 135 1099 64 TELECOM ITALIA
3303 134 611 132 Swisscom Ltd
8866 128 14 11 Bulgarian Telecommunication C
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 58 Servicios Alestra S.A de C.V
6140 339 140 66 ImpSat
8151 279 389 129 UniNet S.A. de C.V.
16814 207 14 10 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 147 53 30 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 132 202 90 AVANTEL, S.A.
11992 90 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 80 5 17 Chilesat Servicios Empresari
4270 77 18 9 Red de Interconexion Universi
14420 77 5 27 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 18 Sinectis S.A.
14535 72 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 39 9 11 Data Pro Business Online
20928 35 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 25 125 23 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 7 AUCEGYPT Autonomous System
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
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
6347 984 884 SAVVIS Communications Corpora
18566 725 717 Covad Communications
4134 793 646 Data Communications Bureau
4323 735 531 Time Warner Communications, I
6197 710 432 BellSouth Network Solutions,
7843 512 383 Adelphia Corp.
701 1304 373 UUNET Technologies, Inc.
9583 473 372 Satyam Infoway Ltd.,
22909 393 367 Comcast Cable Corporation
5668 383 365 Century Telephone
27364 376 357 Armstrong Cable Services
22773 389 333 Cox Communications, Inc. Atla
4755 376 321 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 936 307 Sprint
6198 514 302 BellSouth Network Solutions,
11172 356 298 Servicios Alestra S.A de C.V
9929 324 291 China Netcom Corp.
4355 391 290 EarthLink, Inc.
9443 353 275 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
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
192.172.0.0/19 568 DISO-UNRRA
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 /12:59
/13:127 /14:301 /15:521 /16:7879 /17:2082 /18:3658
/19:9514 /20:9965 /21:7307 /22:10343 /23:11860 /24:77166
/25:229 /26:238 /27:201 /28:25 /29:15 /30:67
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 761 984 SAVVIS Communications Corpora
18566 708 725 Covad Communications
7018 558 1442 AT&T
6197 539 710 BellSouth Network Solutions,
3356 504 895 Level 3 Communications, LLC
702 395 647 UUNET - Commercial IP service
6198 384 514 BellSouth Network Solutions,
1239 373 936 Sprint
701 367 1304 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
9583 319 473 Satyam Infoway Ltd.,
4766 313 495 Korea Internet Exchange for "
20115 297 563 Charter Communications
9929 257 324 China Netcom Corp.
14824 255 279 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 243 285 Choice One Communications Inc
690 241 277 Merit Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:830 13:1 15:5 16:2 17:3
20:8 24:731 32:65 33:1 38:74 40:53
44:4 55:1 56:3 57:16 61:449 62:500
63:1860 64:2005 65:2045 66:2643 67:325 68:487
69:592 70:64 80:541 81:319 82:183 83:94
84:3 128:146 129:176 130:80 131:177 132:23
133:1 134:178 135:17 136:178 137:54 138:169
139:35 140:168 141:122 142:118 143:56 144:92
145:41 146:300 147:77 148:414 149:120 150:97
151:71 152:161 153:64 154:2 155:124 156:60
157:62 158:143 159:147 160:52 161:64 162:383
163:77 164:185 165:160 166:103 167:219 168:228
169:111 170:295 171:8 192:5544 193:2789 194:2043
195:1373 196:551 198:3680 199:3103 200:3571 201:8
202:4706 203:5638 204:3104 205:2075 206:2262 207:2484
208:2201 209:3037 210:1435 211:566 212:987 213:1172
214:62 215:30 216:3710 217:971 218:173 219:119
220:233 221:31 222:40
End of report
