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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 09 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133999
Prefixes after maximum aggregation: 82094
Unique aggregates announced to Internet: 64948
Total ASes present in the Internet Routing Table: 16780
Origin-only ASes present in the Internet Routing Table: 14570
Origin ASes announcing only one prefix: 6736
Transit ASes present in the Internet Routing Table: 2210
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 31
Illegal AS announcements present in the Routing Table: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1291900836
Equivalent to 77 /8s, 0 /16s and 215 /24s
Percentage of available address space announced: 34.9
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59556
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24827
Total APNIC prefixes after maximum aggregation: 13302
Prefixes being announced from the APNIC address blocks: 23215
Unique aggregates announced from the APNIC address blocks: 13430
APNIC Region origin ASes present in the Internet Routing Table: 2015
APNIC Region origin ASes announcing only one prefix: 601
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 137974016
Equivalent to 8 /8s, 57 /16s and 81 /24s
Percentage of available APNIC address space announced: 74.3
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 78009
Total ARIN prefixes after maximum aggregation: 48282
Prefixes being announced from the ARIN address blocks: 60433
Unique aggregates announced from the ARIN address blocks: 20978
ARIN Region origin ASes present in the Internet Routing Table: 8998
ARIN Region origin ASes announcing only one prefix: 3194
ARIN Region transit ASes present in the Internet Routing Table: 876
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 219135776
Equivalent to 13 /8s, 15 /16s and 191 /24s
Percentage of available ARIN address space announced: 72.6
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: 24338
Total RIPE prefixes after maximum aggregation: 17627
Prefixes being announced from the RIPE address blocks: 21152
Unique aggregates announced from the RIPE address blocks: 14048
RIPE Region origin ASes present in the Internet Routing Table: 5249
RIPE Region origin ASes announcing only one prefix: 2817
RIPE Region transit ASes present in the Internet Routing Table: 901
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152761472
Equivalent to 9 /8s, 26 /16s and 244 /24s
Percentage of available RIPE address space announced: 70.0
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5625
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 5292
Unique aggregates announced from the LACNIC address blocks: 3297
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 100
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: 15
Number of LACNIC addresses announced to Internet: 14332160
Equivalent to 0 /8s, 218 /16s and 177 /24s
Percentage of available LACNIC address space announced: 42.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1185
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 739
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 24
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: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 10.5
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 882 1086 637 Telstra Pty Ltd
4134 665 2617 117 Data Communications Bureau
4766 446 2914 245 Korea Internet Exchange for "
9583 380 38 95 Satyam Infoway Ltd.,
2907 361 1847 338 SINET Japan
9443 347 70 81 Primus Telecommunications
703 340 374 262 UUNET
17557 311 22 165 Pakistan Telecom
17676 297 4380 38 XTAGE CORPORATION
2764 296 274 241 connect.com.au pty ltd
7474 270 304 210 Optus Communications Pty Ltd
9942 234 70 134 COMindico Australia
9929 228 155 30 China Netcom Corp.
4755 223 130 59 Videsh Sanchar Nigam Ltd. Aut
9800 214 347 55 CHINA UNICOM
9498 193 30 36 BHARTI BT INTERNET LTD.
4837 169 1571 102 chinanet IDC center beijing n
9304 168 159 24 Hutchison Telecom (HK)
4739 151 60 138 Commerical Internet eXchange
17964 149 120 57 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1410 7203 985 AT&T
701 1341 8575 959 UUNET Technologies, Inc.
1239 933 3073 649 Sprint
3356 850 10939 678 Level 3 Communications, LLC
209 718 3531 506 Qwest
18566 691 192 8 Covad Communications
4323 685 558 199 Time Warner Communications, I
6197 676 442 272 BellSouth Network Solutions,
20115 610 345 332 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 513 1123 400 Telus Advanced Communications
7066 496 207 271 Virginia Polytechnic Institut
7843 492 586 119 Adelphia Corp.
7132 467 7834 321 Southwestern Bell Internet Se
2386 432 579 231 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
27364 388 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
19029 374 168 248 New Edge Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 677 2038 566 UUNET - Commercial IP service
3301 337 1178 316 TeliaNet Sweden
3320 287 1965 235 Deutsche Telekom AG
8220 265 412 252 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
1257 234 510 191 SWIPnet Swedish IP Network
719 233 288 105 LANLINK autonomous system
13083 216 51 8 Mannesmann Datenverarbeitung
3246 190 447 188 Song Networks
786 175 1826 175 The JANET IP Service
8708 172 111 162 Romania Data Systems S.A.
5515 168 762 135 Sonera Solution Autonomous Sy
25186 166 186 109 France Telecom Transpac's Tra
3215 164 800 78 France Telecom Transpac
5400 150 223 133 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 133 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 374 122 64 ImpSat
8151 260 384 127 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 141 220 97 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 119 78 20 Telefonica Del Peru
11992 91 41 33 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 78 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 70 7 17 Sinectis S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
14420 63 4 25 ANDINATEL S.A.
10292 62 6 26 TELECOMMUNICATIONS OF JAMAICA
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
7738 60 234 14 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 218 The Internet Solution
5536 105 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 38 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 32 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 16 2 4 AUCEGYPT Autonomous System
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
8346 14 6 13 SONATEL-AS Autonomous System
17148 14 1 8 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 683 Covad Communications
4134 665 548 Data Communications Bureau
4323 685 486 Time Warner Communications, I
6197 676 404 BellSouth Network Solutions,
701 1341 382 UUNET Technologies, Inc.
7843 492 373 Adelphia Corp.
27364 388 365 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 349 334 Century Telephone
22909 356 332 Comcast Cable Corporation
22773 348 313 Cox Communications, Inc. Atla
6140 374 310 ImpSat
4355 397 294 EarthLink, Inc.
9583 380 285 Satyam Infoway Ltd.,
6347 366 285 SAVVIS Communications Corpora
1239 933 284 Sprint
20115 610 278 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 347 266 Primus Telecommunications
17676 297 259 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65400 PRIVATE 192.55.193.0/24 1290 PSINet UK Ltd.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64541 PRIVATE 209.120.215.0/24 22551 Anobi Technology Cor
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
65412 PRIVATE 211.161.0.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.8.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.32.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.34.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.36.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.38.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.40.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.42.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.44.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.46.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.80.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.88.0/21 4847 China Networks Inter
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
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 /9:4 /10:6 /11:15 /12:59
/13:107 /14:292 /15:509 /16:7595 /17:1909 /18:3486
/19:8997 /20:9427 /21:6858 /22:9657 /23:11188 /24:73163
/25:197 /26:285 /27:159 /28:30 /29:8 /30:14
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 516 676 BellSouth Network Solutions,
7018 502 1410 AT&T
3356 459 850 Level 3 Communications, LLC
702 412 677 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 391 496 Virginia Polytechnic Institut
27364 381 388 Armstrong Cable Services
701 374 1341 UUNET Technologies, Inc.
20115 373 610 Charter Communications
690 360 397 Merit Network
1239 331 933 Sprint
5668 308 349 Century Telephone
4766 269 446 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
19029 242 374 New Edge Networks
3320 235 287 Deutsche Telekom AG
6517 230 252 Yipes Communications, Inc.
9583 226 380 Satyam Infoway Ltd.,
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:797 13:1 15:4 16:1 17:3
20:6 24:839 32:84 38:51 40:26 44:3
55:1 56:1 57:13 61:382 62:491 63:1825
64:1867 65:1918 66:2367 67:280 68:562 69:430
80:468 81:224 82:94 83:8 128:138 129:251
130:71 131:79 132:16 134:175 135:16 136:131
137:107 138:152 139:46 140:148 141:135 142:105
143:49 144:80 145:37 146:288 147:74 148:366
149:85 150:102 151:62 152:214 153:60 154:1
155:127 156:62 157:50 158:148 159:139 160:50
161:53 162:374 163:75 164:320 165:162 166:102
167:211 168:199 169:107 170:301 171:8 192:5530
193:2604 194:2014 195:1341 196:524 198:3650 199:2956
200:3126 201:7 202:4357 203:5401 204:2987 205:1986
206:2282 207:2619 208:2389 209:2880 210:1139 211:461
212:909 213:1073 214:26 215:26 216:3348 217:846
218:154 219:88 220:190 221:19 222:6
End of report
