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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 27 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142427
Prefixes after maximum aggregation: 85266
Unique aggregates announced to Internet: 68209
Total ASes present in the Internet Routing Table: 17487
Origin-only ASes present in the Internet Routing Table: 15145
Origin ASes announcing only one prefix: 7067
Transit ASes present in the Internet Routing Table: 2342
Transit-only ASes present in the Internet Routing Table: 73
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1313972252
Equivalent to 78 /8s, 81 /16s and 160 /24s
Percentage of available address space announced: 35.5
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65653
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26985
Total APNIC prefixes after maximum aggregation: 13979
Prefixes being announced from the APNIC address blocks: 25218
Unique aggregates announced from the APNIC address blocks: 13913
APNIC Region origin ASes present in the Internet Routing Table: 2068
APNIC Region origin ASes announcing only one prefix: 616
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 150454272
Equivalent to 8 /8s, 247 /16s and 192 /24s
Percentage of available APNIC address space announced: 68.7
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: 82095
Total ARIN prefixes after maximum aggregation: 49931
Prefixes being announced from the ARIN address blocks: 63182
Unique aggregates announced from the ARIN address blocks: 21955
ARIN Region origin ASes present in the Internet Routing Table: 9272
ARIN Region origin ASes announcing only one prefix: 3301
ARIN Region transit ASes present in the Internet Routing Table: 908
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225847072
Equivalent to 13 /8s, 118 /16s and 39 /24s
Percentage of available ARIN address space announced: 74.8
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: 26022
Total RIPE prefixes after maximum aggregation: 18434
Prefixes being announced from the RIPE address blocks: 22794
Unique aggregates announced from the RIPE address blocks: 15171
RIPE Region origin ASes present in the Internet Routing Table: 5604
RIPE Region origin ASes announcing only one prefix: 3018
RIPE Region transit ASes present in the Internet Routing Table: 979
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 165041216
Equivalent to 9 /8s, 214 /16s and 84 /24s
Percentage of available RIPE address space announced: 57.9
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
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: 6170
Total LACNIC prefixes after maximum aggregation: 2246
Prefixes being announced from the LACNIC address blocks: 5806
Unique aggregates announced from the LACNIC address blocks: 3540
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: 75
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15119872
Equivalent to 0 /8s, 230 /16s and 182 /24s
Percentage of available LACNIC address space announced: 45.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1154
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 781
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: 16
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 847 1075 615 Telstra Pty Ltd
4134 792 3664 146 Data Communications Bureau
4766 493 2895 263 Korea Internet Exchange for "
9583 462 38 97 Satyam Infoway Ltd.,
4755 366 132 52 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 349 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 337 23 165 Pakistan Telecom
703 327 359 256 UUNET
9929 322 156 33 China Netcom Corp.
2764 294 259 241 connect.com.au pty ltd
7474 263 268 206 Optus Communications Pty Ltd
9942 231 71 128 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 216 48 48 BHARTI BT INTERNET LTD.
10036 198 18 179 C&M Communication Co. Ltd.
4837 185 2017 104 chinanet IDC center beijing n
9304 174 161 25 Hutchison Telecom (HK)
4780 168 193 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1449 6891 1004 AT&T
701 1298 8485 925 UUNET Technologies, Inc.
6347 983 400 100 SAVVIS Communications Corpora
1239 938 2981 632 Sprint
3356 892 10934 674 Level 3 Communications, LLC
557 768 63 15 University of Maine System Co
4323 743 553 205 Time Warner Communications, I
18566 724 192 8 Covad Communications
6197 707 525 276 BellSouth Network Solutions,
209 616 3469 508 Qwest
6198 575 439 221 BellSouth Network Solutions,
20115 562 373 288 Charter Communications
852 514 1142 402 Telus Advanced Communications
7843 511 661 128 Adelphia Corp.
7132 455 7872 341 Southwestern Bell Internet Se
2386 423 565 225 AT&T Data Communications Serv
721 393 13171 289 DLA Systems Automation Center
22909 393 825 26 Comcast Cable Corporation
705 391 128 267 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2039 539 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 295 1098 268 TeliaNet Sweden
8220 271 428 259 COLT Internet - International
1257 247 497 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 477 208 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 186 112 173 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 180 288 102 LANLINK autonomous system
25186 174 156 115 France Telecom Transpac's Tra
786 173 1778 173 The JANET IP Service
6746 156 29 127 Dynamic Network Technologies,
5400 144 205 120 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 133 611 132 Swisscom Ltd
12302 128 18 32 MobiFon S.A.
8866 126 14 11 Bulgarian Telecommunication C
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 343 140 67 ImpSat
8151 270 373 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 146 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 80 5 17 Chilesat Servicios Empresari
14420 77 5 27 ANDINATEL S.A.
14535 76 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
4270 72 18 9 Red de Interconexion Universi
5639 72 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 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
8524 25 2 4 AUCEGYPT Autonomous System
12455 25 4 2 Jambonet Autonomous system
16637 25 9 18 Johnnic e-Ventures
5713 24 125 23 Telkom SA Ltd
6713 24 38 9 Itissalat Al-MAGHRIB
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
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 983 883 SAVVIS Communications Corpora
557 768 753 University of Maine System Co
18566 724 716 Covad Communications
4134 792 646 Data Communications Bureau
4323 743 538 Time Warner Communications, I
6197 707 431 BellSouth Network Solutions,
7843 511 383 Adelphia Corp.
701 1298 373 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 384 367 Century Telephone
9583 462 365 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
6198 575 354 BellSouth Network Solutions,
22773 388 332 Cox Communications, Inc. Atla
4755 366 314 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 938 306 Sprint
11172 356 298 Servicios Alestra S.A de C.V
4355 391 290 EarthLink, Inc.
9929 322 289 China Netcom Corp.
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
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
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
/13:124 /14:301 /15:519 /16:7882 /17:2073 /18:3639
/19:9482 /20:9959 /21:7315 /22:10356 /23:11881 /24:77419
/25:373 /26:383 /27:348 /28:174 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 759 983 SAVVIS Communications Corpora
557 735 768 University of Maine System Co
18566 707 724 Covad Communications
7018 564 1449 AT&T
6197 536 707 BellSouth Network Solutions,
3356 503 892 Level 3 Communications, LLC
6198 405 575 BellSouth Network Solutions,
702 394 646 UUNET - Commercial IP service
1239 371 938 Sprint
701 367 1298 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 384 Century Telephone
4766 311 493 Korea Internet Exchange for "
9583 311 462 Satyam Infoway Ltd.,
20115 297 562 Charter Communications
9929 255 322 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:828 13:1 15:5 16:2 17:3
20:8 24:751 32:65 33:1 38:72 40:52
44:4 55:1 56:3 57:15 61:414 62:510
63:1864 64:2041 65:2045 66:2628 67:326 68:500
69:585 70:64 80:532 81:324 82:181 83:92
84:3 128:147 129:176 130:77 131:185 132:21
133:1 134:181 135:17 136:180 137:54 138:167
139:37 140:215 141:124 142:119 143:57 144:100
145:41 146:308 147:77 148:417 149:119 150:96
151:71 152:164 153:64 154:2 155:123 156:60
157:60 158:145 159:147 160:52 161:64 162:383
163:75 164:180 165:160 166:100 167:218 168:229
169:161 170:286 171:8 192:5566 193:2783 194:2047
195:1370 196:554 198:3694 199:3106 200:3556 201:7
202:4670 203:5638 204:3112 205:2100 206:2290 207:2534
208:2219 209:3058 210:1430 211:557 212:991 213:1175
214:66 215:30 216:3749 217:942 218:168 219:114
220:232 221:30 222:40
End of report
