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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 04 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141665
Prefixes after maximum aggregation: 85279
Unique aggregates announced to Internet: 68282
Total ASes present in the Internet Routing Table: 17512
Origin-only ASes present in the Internet Routing Table: 15167
Origin ASes announcing only one prefix: 7102
Transit ASes present in the Internet Routing Table: 2345
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1316736488
Equivalent to 78 /8s, 123 /16s and 205 /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: 64825
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27188
Total APNIC prefixes after maximum aggregation: 13990
Prefixes being announced from the APNIC address blocks: 25411
Unique aggregates announced from the APNIC address blocks: 13938
APNIC Region origin ASes present in the Internet Routing Table: 2060
APNIC Region origin ASes announcing only one prefix: 617
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 151060160
Equivalent to 9 /8s, 0 /16s and 254 /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: 81014
Total ARIN prefixes after maximum aggregation: 49858
Prefixes being announced from the ARIN address blocks: 62811
Unique aggregates announced from the ARIN address blocks: 21950
ARIN Region origin ASes present in the Internet Routing Table: 9284
ARIN Region origin ASes announcing only one prefix: 3316
ARIN Region transit ASes present in the Internet Routing Table: 906
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 227255840
Equivalent to 13 /8s, 139 /16s and 166 /24s
Percentage of available ARIN address space announced: 75.3
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, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26114
Total RIPE prefixes after maximum aggregation: 18498
Prefixes being announced from the RIPE address blocks: 22889
Unique aggregates announced from the RIPE address blocks: 15200
RIPE Region origin ASes present in the Internet Routing Table: 5624
RIPE Region origin ASes announcing only one prefix: 3037
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: 165974592
Equivalent to 9 /8s, 228 /16s and 146 /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: 6174
Total LACNIC prefixes after maximum aggregation: 2258
Prefixes being announced from the LACNIC address blocks: 5843
Unique aggregates announced from the LACNIC address blocks: 3581
LACNIC Region origin ASes present in the Internet Routing Table: 378
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15206656
Equivalent to 0 /8s, 232 /16s and 9 /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: 1174
Total AfriNIC prefixes after maximum aggregation: 675
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: 4.9
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 822 1041 592 Telstra Pty Ltd
4134 792 3656 146 Data Communications Bureau
4766 499 2895 266 Korea Internet Exchange for "
9583 481 39 102 Satyam Infoway Ltd.,
4755 395 133 60 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 349 1840 326 SINET Japan
17557 341 24 168 Pakistan Telecom
17676 341 5084 33 XTAGE CORPORATION
9929 324 156 33 China Netcom Corp.
703 320 358 249 UUNET
2764 292 258 239 connect.com.au pty ltd
7474 264 268 206 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 202 11 131 IXNet Hong Kong Limited
4802 198 23 137 Wantree Development
10036 198 18 179 C&M Communication Co. Ltd.
4837 189 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1440 6833 992 AT&T
701 1303 8486 930 UUNET Technologies, Inc.
6347 984 400 103 SAVVIS Communications Corpora
1239 936 2889 628 Sprint
3356 893 10916 678 Level 3 Communications, LLC
4323 739 570 206 Time Warner Communications, I
18566 725 192 8 Covad Communications
6197 710 526 278 BellSouth Network Solutions,
209 612 3454 505 Qwest
20115 563 374 289 Charter Communications
6198 515 396 214 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
721 400 13205 293 DLA Systems Automation Center
22909 393 825 26 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
22773 388 782 56 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2039 541 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 250 498 195 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 188 112 175 Romania Data Systems S.A.
3215 183 895 70 France Telecom Transpac
719 181 288 103 LANLINK autonomous system
25186 174 156 115 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 157 29 128 Dynamic Network Technologies,
5400 144 205 120 BT Ignite European Backbone
3269 135 1099 64 TELECOM ITALIA
3303 133 611 132 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 327 140 65 ImpSat
8151 280 389 129 UniNet S.A. de C.V.
16814 208 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 131 202 89 AVANTEL, S.A.
11992 90 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 77 5 29 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
11340 71 5 37 Red Universitaria Nacional
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 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
12455 26 4 2 Jambonet Autonomous system
5713 25 125 23 Telkom SA Ltd
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
9129 23 3 2 UUNET Kenya
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 984 881 SAVVIS Communications Corpora
18566 725 717 Covad Communications
4134 792 646 Data Communications Bureau
4323 739 533 Time Warner Communications, I
6197 710 432 BellSouth Network Solutions,
7843 512 383 Adelphia Corp.
9583 481 379 Satyam Infoway Ltd.,
701 1303 373 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 380 362 Century Telephone
27364 376 357 Armstrong Cable Services
4755 395 335 Videsh Sanchar Nigam Ltd. Aut
22773 388 332 Cox Communications, Inc. Atla
1239 936 308 Sprint
17676 341 308 XTAGE CORPORATION
6198 515 301 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 /16:7889 /17:2086 /18:3662
/19:9515 /20:9957 /21:7306 /22:10338 /23:11840 /24:77291
/25:222 /26:223 /27:165 /28:25 /29:14 /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 562 1440 AT&T
6197 539 710 BellSouth Network Solutions,
3356 502 893 Level 3 Communications, LLC
702 395 647 UUNET - Commercial IP service
6198 385 515 BellSouth Network Solutions,
1239 374 936 Sprint
701 367 1303 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 333 380 Century Telephone
9583 325 481 Satyam Infoway Ltd.,
4766 318 499 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
13609 244 286 Choice One Communications Inc
25844 244 244 Skadden, Arps, Slate, Meagher
6517 242 268 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:828 13:1 15:5 16:2 17:3
20:8 24:732 32:65 33:2 38:74 40:53
44:4 55:1 56:3 57:16 61:451 62:503
63:1860 64:2007 65:2042 66:2649 67:327 68:486
69:595 70:64 80:541 81:320 82:182 83:96
84:3 128:147 129:176 130:80 131:187 132:23
133:1 134:178 135:17 136:178 137:54 138:170
139:35 140:169 141:122 142:116 143:58 144:103
145:41 146:297 147:77 148:414 149:117 150:96
151:72 152:161 153:64 154:2 155:124 156:60
157:63 158:140 159:147 160:52 161:64 162:383
163:76 164:186 165:160 166:104 167:220 168:230
169:111 170:287 171:8 192:5551 193:2793 194:2051
195:1378 196:551 198:3683 199:3115 200:3589 201:8
202:4738 203:5638 204:3124 205:2093 206:2260 207:2486
208:2201 209:2995 210:1439 211:564 212:982 213:1172
214:66 215:30 216:3716 217:969 218:170 219:119
220:232 221:31 222:51
End of report
