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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138300
Prefixes after maximum aggregation: 84013
Unique aggregates announced to Internet: 67117
Total ASes present in the Internet Routing Table: 17252
Origin-only ASes present in the Internet Routing Table: 14963
Origin ASes announcing only one prefix: 6948
Transit ASes present in the Internet Routing Table: 2289
Transit-only ASes present in the Internet Routing Table: 76
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1289247228
Equivalent to 76 /8s, 216 /16s and 89 /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: 62176
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26460
Total APNIC prefixes after maximum aggregation: 13743
Prefixes being announced from the APNIC address blocks: 24768
Unique aggregates announced from the APNIC address blocks: 13812
APNIC Region origin ASes present in the Internet Routing Table: 2052
APNIC Region origin ASes announcing only one prefix: 612
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146953984
Equivalent to 8 /8s, 194 /16s and 87 /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: 79319
Total ARIN prefixes after maximum aggregation: 49257
Prefixes being announced from the ARIN address blocks: 61195
Unique aggregates announced from the ARIN address blocks: 21537
ARIN Region origin ASes present in the Internet Routing Table: 9193
ARIN Region origin ASes announcing only one prefix: 3270
ARIN Region transit ASes present in the Internet Routing Table: 907
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224203808
Equivalent to 13 /8s, 93 /16s and 20 /24s
Percentage of available ARIN address space announced: 74.2
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 - 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: 25453
Total RIPE prefixes after maximum aggregation: 18108
Prefixes being announced from the RIPE address blocks: 22267
Unique aggregates announced from the RIPE address blocks: 14758
RIPE Region origin ASes present in the Internet Routing Table: 5462
RIPE Region origin ASes announcing only one prefix: 2940
RIPE Region transit ASes present in the Internet Routing Table: 937
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162413568
Equivalent to 9 /8s, 174 /16s and 60 /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: 5916
Total LACNIC prefixes after maximum aggregation: 2228
Prefixes being announced from the LACNIC address blocks: 5580
Unique aggregates announced from the LACNIC address blocks: 3495
LACNIC Region origin ASes present in the Internet Routing Table: 378
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14919424
Equivalent to 0 /8s, 227 /16s and 167 /24s
Percentage of available LACNIC address space announced: 44.5
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: 677
Prefixes being announced from the AfriNIC address blocks: 769
Unique aggregates announced from the AfriNIC address blocks: 578
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
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: 1848064
Equivalent to 0 /8s, 28 /16s and 51 /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 471 39 88 Satyam Infoway Ltd.,
9443 354 69 78 Primus Telecommunications
2907 353 1841 330 SINET Japan
4755 353 125 53 Videsh Sanchar Nigam Ltd. Aut
9929 345 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 326 23 167 Pakistan Telecom
2764 298 275 243 connect.com.au pty ltd
7474 265 268 208 Optus Communications Pty Ltd
9942 229 71 126 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
10036 173 16 162 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1445 6891 1007 AT&T
701 1318 8544 944 UUNET Technologies, Inc.
1239 936 3016 639 Sprint
3356 895 10916 679 Level 3 Communications, LLC
209 735 3459 503 Qwest
4323 723 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 702 519 268 BellSouth Network Solutions,
6198 570 373 213 BellSouth Network Solutions,
20115 559 366 289 Charter Communications
852 511 1140 402 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 496 646 115 Adelphia Corp.
7132 452 7868 336 Southwestern Bell Internet Se
2386 426 601 229 AT&T Data Communications Serv
705 401 147 275 UUNET Technologies, Inc.
6347 400 388 90 SAVVIS Communications Corpora
4355 391 323 101 EarthLink, Inc.
22909 387 840 29 Comcast Cable Corporation
376 383 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2021 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
6746 155 29 129 Dynamic Network Technologies,
5400 150 225 128 BT Ignite European Backbone
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 115 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
14420 73 5 32 ANDINATEL S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14535 71 6 5 Techtel S.A.
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 723 523 Time Warner Communications, I
6197 702 434 BellSouth Network Solutions,
9583 471 383 Satyam Infoway Ltd.,
7843 496 381 Adelphia Corp.
701 1318 374 UUNET Technologies, Inc.
5668 380 363 Century Telephone
22909 387 358 Comcast Cable Corporation
6198 570 357 BellSouth Network Solutions,
27364 359 340 Armstrong Cable Services
22773 372 328 Cox Communications, Inc. Atla
6140 386 321 ImpSat
9929 345 312 China Netcom Corp.
6347 400 310 SAVVIS Communications Corpora
17676 341 308 XTAGE CORPORATION
4755 353 300 Videsh Sanchar Nigam Ltd. Aut
1239 936 297 Sprint
4355 391 290 EarthLink, Inc.
9443 354 276 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
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 /8:18 /9:3 /10:6 /11:15 /12:59
/13:120 /14:293 /15:510 /16:7753 /17:2019 /18:3595
/19:9366 /20:9861 /21:7174 /22:10187 /23:11543 /24:75070
/25:216 /26:253 /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 1445 AT&T
6197 533 702 BellSouth Network Solutions,
3356 507 895 Level 3 Communications, LLC
6198 405 570 BellSouth Network Solutions,
7066 399 505 Virginia Polytechnic Institut
702 396 650 UUNET - Commercial IP service
701 367 1318 UUNET Technologies, Inc.
1239 360 936 Sprint
27364 347 359 Armstrong Cable Services
5668 332 380 Century Telephone
4766 313 490 Korea Internet Exchange for "
9583 312 471 Satyam Infoway Ltd.,
20115 299 559 Charter Communications
9929 275 345 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 282 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 12:816 13:1 15:5 16:1 17:3
20:8 24:722 32:96 38:68 40:54 44:3
55:1 56:4 57:13 61:378 62:491 63:1838
64:1832 65:1990 66:2482 67:312 68:516 69:546
70:64 80:497 81:297 82:172 83:56 128:146
129:198 130:80 131:131 132:18 133:1 134:178
135:17 136:186 137:105 138:157 139:40 140:156
141:126 142:117 143:54 144:90 145:42 146:301
147:76 148:374 149:115 150:93 151:66 152:165
153:62 154:1 155:120 156:61 157:54 158:145
159:147 160:54 161:54 162:381 163:75 164:332
165:160 166:99 167:218 168:224 169:105 170:286
171:8 192:5531 193:2705 194:2030 195:1368 196:547
198:3678 199:3061 200:3352 201:7 202:4563 203:5551
204:3041 205:1990 206:2249 207:2444 208:2243 209:2801
210:1432 211:541 212:966 213:1161 214:56 215:28
216:3386 217:902 218:171 219:106 220:216 221:28
222:29
End of report
