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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138409
Prefixes after maximum aggregation: 83584
Unique aggregates announced to Internet: 66667
Total ASes present in the Internet Routing Table: 17219
Origin-only ASes present in the Internet Routing Table: 14915
Origin ASes announcing only one prefix: 6937
Transit ASes present in the Internet Routing Table: 2304
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 10
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1304552952
Equivalent to 77 /8s, 193 /16s and 229 /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: 62278
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26305
Total APNIC prefixes after maximum aggregation: 13636
Prefixes being announced from the APNIC address blocks: 24623
Unique aggregates announced from the APNIC address blocks: 13715
APNIC Region origin ASes present in the Internet Routing Table: 2056
APNIC Region origin ASes announcing only one prefix: 615
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 146576896
Equivalent to 8 /8s, 188 /16s and 150 /24s
Percentage of available APNIC address space announced: 66.9
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: 79652
Total ARIN prefixes after maximum aggregation: 48984
Prefixes being announced from the ARIN address blocks: 61652
Unique aggregates announced from the ARIN address blocks: 21318
ARIN Region origin ASes present in the Internet Routing Table: 9169
ARIN Region origin ASes announcing only one prefix: 3268
ARIN Region transit ASes present in the Internet Routing Table: 911
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224274208
Equivalent to 13 /8s, 94 /16s and 39 /24s
Percentage of available ARIN address space announced: 74.3
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 - 32767
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: 25413
Total RIPE prefixes after maximum aggregation: 18065
Prefixes being announced from the RIPE address blocks: 22254
Unique aggregates announced from the RIPE address blocks: 14679
RIPE Region origin ASes present in the Internet Routing Table: 5448
RIPE Region origin ASes announcing only one prefix: 2925
RIPE Region transit ASes present in the Internet Routing Table: 945
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 161067520
Equivalent to 9 /8s, 153 /16s and 178 /24s
Percentage of available RIPE address space announced: 56.5
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: 5884
Total LACNIC prefixes after maximum aggregation: 2223
Prefixes being announced from the LACNIC address blocks: 5538
Unique aggregates announced from the LACNIC address blocks: 3441
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14902016
Equivalent to 0 /8s, 227 /16s and 99 /24s
Percentage of available LACNIC address space announced: 44.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 770
Unique aggregates announced from the AfriNIC address blocks: 572
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1850368
Equivalent to 0 /8s, 28 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 11.0
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 851 1091 617 Telstra Pty Ltd
4134 768 3482 139 Data Communications Bureau
4766 485 2903 261 Korea Internet Exchange for "
9583 464 40 81 Satyam Infoway Ltd.,
4755 355 125 52 Videsh Sanchar Nigam Ltd. Aut
9443 352 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 341 155 32 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 326 23 165 Pakistan Telecom
2764 295 275 242 connect.com.au pty ltd
7474 268 268 210 Optus Communications Pty Ltd
9942 229 71 125 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 191 31 45 BHARTI BT INTERNET LTD.
17974 179 51 98 PT TELEKOMUNIKASI INDONESIA
4837 176 1683 105 chinanet IDC center beijing n
9304 171 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1439 6904 998 AT&T
701 1320 8544 946 UUNET Technologies, Inc.
3549 946 599 254 Global Crossing
1239 937 3016 636 Sprint
3356 898 10950 682 Level 3 Communications, LLC
209 735 3469 504 Qwest
4323 725 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 701 517 267 BellSouth Network Solutions,
6198 569 372 210 BellSouth Network Solutions,
20115 536 848 273 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 504 208 274 Virginia Polytechnic Institut
7843 496 644 116 Adelphia Corp.
7132 450 7868 334 Southwestern Bell Internet Se
2386 426 593 232 AT&T Data Communications Serv
6347 401 388 90 SAVVIS Communications Corpora
705 400 145 275 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 386 840 29 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 641 2037 545 UUNET - Commercial IP service
3320 298 2477 238 Deutsche Telekom AG
3301 270 1096 260 TeliaNet Sweden
8220 270 428 257 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 242 495 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 201 779 143 Sonera Solution Autonomous Sy
719 195 288 102 LANLINK autonomous system
3215 177 835 69 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
25186 174 172 115 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
5400 153 227 134 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 135 1101 65 TELECOM ITALIA
3303 134 611 134 Swisscom Ltd
12302 121 17 28 MobiFon S.A.
1273 112 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 384 122 69 ImpSat
8151 269 372 129 UniNet S.A. de C.V.
11172 215 79 50 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 144 53 29 Telecom Argentina Stet-France
6505 133 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 78 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14420 71 5 30 ANDINATEL S.A.
14535 71 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
10292 65 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
6713 28 38 9 Itissalat Al-MAGHRIB
9129 28 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
8524 23 2 4 AUCEGYPT Autonomous System
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 14 22 13 SONATEL-AS Autonomous System
15808 13 1 5 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 704 696 Covad Communications
3549 946 692 Global Crossing
4134 768 629 Data Communications Bureau
4323 725 525 Time Warner Communications, I
6197 701 434 BellSouth Network Solutions,
9583 464 383 Satyam Infoway Ltd.,
7843 496 380 Adelphia Corp.
701 1320 374 UUNET Technologies, Inc.
5668 377 360 Century Telephone
6198 569 359 BellSouth Network Solutions,
22909 386 357 Comcast Cable Corporation
27364 359 340 Armstrong Cable Services
22773 369 329 Cox Communications, Inc. Atla
6140 384 315 ImpSat
6347 401 311 SAVVIS Communications Corpora
9929 341 309 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
4755 355 303 Videsh Sanchar Nigam Ltd. Aut
1239 937 301 Sprint
4355 391 290 EarthLink, Inc.
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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
30306 UNALLOCATED 212.85.220.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.220.0/22 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.221.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.222.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.223.0/24 21242 Menasat - GDBC ,Glob
65500 PRIVATE 219.83.32.0/22 4795 INDOSATNET-ASN
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
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
192.83.16.0/20 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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:6 /11:16 /12:59
/13:117 /14:294 /15:509 /16:7748 /17:2012 /18:3581
/19:9357 /20:9842 /21:7113 /22:10185 /23:11527 /24:75297
/25:215 /26:265 /27:142 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 547 1439 AT&T
6197 533 701 BellSouth Network Solutions,
3356 505 898 Level 3 Communications, LLC
3549 461 946 Global Crossing
6198 405 569 BellSouth Network Solutions,
7066 398 504 Virginia Polytechnic Institut
702 386 641 UUNET - Commercial IP service
701 367 1320 UUNET Technologies, Inc.
1239 360 937 Sprint
27364 347 359 Armstrong Cable Services
5668 329 377 Century Telephone
9583 306 464 Satyam Infoway Ltd.,
4766 305 485 Korea Internet Exchange for "
20115 275 536 Charter Communications
9929 272 341 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 298 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:814 13:1 15:5 16:1 17:3
20:8 24:715 32:96 38:67 40:54 44:3
55:1 56:4 57:14 61:418 62:486 63:1843
64:2005 65:1989 66:2486 67:323 68:514 69:540
70:64 80:508 81:289 82:172 83:56 128:146
129:199 130:77 131:90 132:18 133:1 134:180
135:17 136:148 137:104 138:150 139:40 140:154
141:126 142:113 143:54 144:91 145:42 146:322
147:76 148:375 149:115 150:93 151:64 152:168
153:62 154:1 155:123 156:58 157:54 158:144
159:148 160:52 161:54 162:380 163:76 164:329
165:160 166:99 167:218 168:222 169:105 170:285
171:8 192:5531 193:2694 194:2042 195:1385 196:547
198:3648 199:3042 200:3316 201:8 202:4561 203:5534
204:3008 205:1968 206:2369 207:2548 208:2364 209:2835
210:1365 211:506 212:956 213:1145 214:41 215:28
216:3372 217:915 218:170 219:99 220:216 221:28
222:33
End of report
