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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 20 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138070
Prefixes after maximum aggregation: 83803
Unique aggregates announced to Internet: 66150
Total ASes present in the Internet Routing Table: 17238
Origin-only ASes present in the Internet Routing Table: 14950
Origin ASes announcing only one prefix: 6952
Transit ASes present in the Internet Routing Table: 2288
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 27
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1289768444
Equivalent to 76 /8s, 224 /16s and 77 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61999
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26318
Total APNIC prefixes after maximum aggregation: 13588
Prefixes being announced from the APNIC address blocks: 24620
Unique aggregates announced from the APNIC address blocks: 13568
APNIC Region origin ASes present in the Internet Routing Table: 2054
APNIC Region origin ASes announcing only one prefix: 613
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 146968832
Equivalent to 8 /8s, 194 /16s and 145 /24s
Percentage of available APNIC address space announced: 67.1
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: 79243
Total ARIN prefixes after maximum aggregation: 49210
Prefixes being announced from the ARIN address blocks: 61153
Unique aggregates announced from the ARIN address blocks: 20867
ARIN Region origin ASes present in the Internet Routing Table: 9182
ARIN Region origin ASes announcing only one prefix: 3271
ARIN Region transit ASes present in the Internet Routing Table: 908
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224926496
Equivalent to 13 /8s, 104 /16s and 27 /24s
Percentage of available ARIN address space announced: 74.5
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 - 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: 25456
Total RIPE prefixes after maximum aggregation: 18111
Prefixes being announced from the RIPE address blocks: 22268
Unique aggregates announced from the RIPE address blocks: 14734
RIPE Region origin ASes present in the Internet Routing Table: 5461
RIPE Region origin ASes announcing only one prefix: 2939
RIPE Region transit ASes present in the Internet Routing Table: 933
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 162298624
Equivalent to 9 /8s, 172 /16s and 123 /24s
Percentage of available RIPE address space announced: 56.9
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: 5900
Total LACNIC prefixes after maximum aggregation: 2219
Prefixes being announced from the LACNIC address blocks: 5565
Unique aggregates announced from the LACNIC address blocks: 3470
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 107
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: 14825216
Equivalent to 0 /8s, 226 /16s and 55 /24s
Percentage of available LACNIC address space announced: 44.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1149
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 772
Unique aggregates announced from the AfriNIC address blocks: 579
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 22
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: 16
Number of AfriNIC addresses announced to Internet: 1848320
Equivalent to 0 /8s, 28 /16s and 52 /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 854 1091 616 Telstra Pty Ltd
4134 768 3514 140 Data Communications Bureau
4766 490 2904 264 Korea Internet Exchange for "
9583 473 43 33 Satyam Infoway Ltd.,
2907 352 1841 329 SINET Japan
9443 352 69 78 Primus Telecommunications
4755 351 124 51 Videsh Sanchar Nigam Ltd. Aut
9929 341 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 167 Pakistan Telecom
2764 298 275 243 connect.com.au pty ltd
7474 267 268 210 Optus Communications Pty Ltd
9942 228 71 125 COMindico Australia
9800 222 367 61 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 47 46 BHARTI BT INTERNET LTD.
17974 179 51 98 PT TELEKOMUNIKASI INDONESIA
4837 176 1683 105 chinanet IDC center beijing n
9304 170 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1446 6891 1008 AT&T
701 1320 8544 946 UUNET Technologies, Inc.
1239 938 3016 640 Sprint
3356 894 10932 679 Level 3 Communications, LLC
209 733 3458 500 Qwest
4323 724 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 702 519 268 BellSouth Network Solutions,
6198 568 373 213 BellSouth Network Solutions,
20115 558 365 288 Charter Communications
852 512 1142 403 Telus Advanced Communications
7066 497 208 274 Virginia Polytechnic Institut
7843 495 644 117 Adelphia Corp.
7132 452 7868 336 Southwestern Bell Internet Se
2386 428 601 231 AT&T Data Communications Serv
6347 400 388 90 SAVVIS Communications Corpora
705 398 146 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 386 840 29 Comcast Cable Corporation
376 381 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2037 545 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
3301 272 1096 262 TeliaNet Sweden
8220 272 428 259 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 240 493 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 202 795 144 Sonera Solution Autonomous Sy
719 177 288 102 LANLINK autonomous system
3215 176 833 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 150 225 128 BT Ignite European Backbone
6746 141 28 115 Dynamic Network Technologies,
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 112 13 6 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 386 124 65 ImpSat
8151 268 373 129 UniNet S.A. de C.V.
11172 214 79 50 Servicios Alestra S.A de C.V
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
14420 71 5 30 ANDINATEL S.A.
14535 71 6 5 Techtel S.A.
4270 70 18 9 Red de Interconexion Universi
11311 69 7 19 Sinectis S.A.
14259 68 4 5 GTD Internet S.A.
10292 66 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 107 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
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
4134 768 628 Data Communications Bureau
4323 724 524 Time Warner Communications, I
9583 473 440 Satyam Infoway Ltd.,
6197 702 434 BellSouth Network Solutions,
7843 495 378 Adelphia Corp.
701 1320 374 UUNET Technologies, Inc.
5668 379 362 Century Telephone
22909 386 357 Comcast Cable Corporation
6198 568 355 BellSouth Network Solutions,
27364 359 340 Armstrong Cable Services
22773 373 329 Cox Communications, Inc. Atla
6140 386 321 ImpSat
6347 400 310 SAVVIS Communications Corpora
9929 341 308 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
4755 351 300 Videsh Sanchar Nigam Ltd. Aut
1239 938 298 Sprint
4355 391 290 EarthLink, Inc.
9443 352 274 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
65001 PRIVATE 148.235.124.0/24 8151 UniNet S.A. de C.V.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 200.79.116.0/24 8151 UniNet S.A. de C.V.
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 5713 Telkom SA Ltd
65001 PRIVATE 216.104.223.0/24 21371 Interconnect Exchang
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
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
/13:120 /14:293 /15:509 /16:7755 /17:2019 /18:3597
/19:9369 /20:9858 /21:7169 /22:10159 /23:11504 /24:74914
/25:214 /26:249 /27:137 /28:30 /29:6 /30:54
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 550 1446 AT&T
6197 533 702 BellSouth Network Solutions,
3356 505 894 Level 3 Communications, LLC
6198 403 568 BellSouth Network Solutions,
702 395 650 UUNET - Commercial IP service
7066 391 497 Virginia Polytechnic Institut
701 368 1320 UUNET Technologies, Inc.
1239 362 938 Sprint
27364 347 359 Armstrong Cable Services
5668 331 379 Century Telephone
4766 313 490 Korea Internet Exchange for "
9583 309 473 Satyam Infoway Ltd.,
20115 299 558 Charter Communications
9929 271 341 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 296 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 235 276 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:5 16:1 17:3
20:8 24:721 32:96 38:67 40:54 44:3
55:1 56:4 57:14 61:362 62:495 63:1849
64:1829 65:1987 66:2478 67:311 68:516 69:548
70:64 80:498 81:296 82:175 83:55 128:147
129:198 130:82 131:131 132:18 133:1 134:179
135:17 136:187 137:106 138:157 139:40 140:157
141:126 142:116 143:54 144:91 145:42 146:300
147:76 148:374 149:114 150:93 151:65 152:165
153:62 154:1 155:120 156:59 157:53 158:145
159:147 160:54 161:54 162:381 163:75 164:324
165:160 166:99 167:218 168:224 169:105 170:286
171:8 192:5533 193:2703 194:2031 195:1366 196:550
198:3669 199:3058 200:3343 201:7 202:4562 203:5533
204:3035 205:1987 206:2247 207:2452 208:2240 209:2800
210:1369 211:526 212:969 213:1157 214:43 215:28
216:3389 217:899 218:171 219:104 220:214 221:28
222:29
End of report
