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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137468
Prefixes after maximum aggregation: 83467
Unique aggregates announced to Internet: 66430
Total ASes present in the Internet Routing Table: 17165
Origin-only ASes present in the Internet Routing Table: 14887
Origin ASes announcing only one prefix: 6895
Transit ASes present in the Internet Routing Table: 2278
Transit-only ASes present in the Internet Routing Table: 81
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1284709296
Equivalent to 76 /8s, 147 /16s and 27 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 56.9
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100320
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26170
Total APNIC prefixes after maximum aggregation: 13641
Prefixes being announced from the APNIC address blocks: 24493
Unique aggregates announced from the APNIC address blocks: 13676
APNIC Region origin ASes present in the Internet Routing Table: 2046
APNIC Region origin ASes announcing only one prefix: 608
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 145851904
Equivalent to 8 /8s, 177 /16s and 134 /24s
Percentage of available APNIC address space announced: 66.6
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: 79041
Total ARIN prefixes after maximum aggregation: 48905
Prefixes being announced from the ARIN address blocks: 61034
Unique aggregates announced from the ARIN address blocks: 21294
ARIN Region origin ASes present in the Internet Routing Table: 9154
ARIN Region origin ASes announcing only one prefix: 3260
ARIN Region transit ASes present in the Internet Routing Table: 901
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222726176
Equivalent to 13 /8s, 70 /16s and 136 /24s
Percentage of available ARIN address space announced: 73.8
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 - 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: 25269
Total RIPE prefixes after maximum aggregation: 18022
Prefixes being announced from the RIPE address blocks: 22076
Unique aggregates announced from the RIPE address blocks: 14533
RIPE Region origin ASes present in the Internet Routing Table: 5417
RIPE Region origin ASes announcing only one prefix: 2900
RIPE Region transit ASes present in the Internet Routing Table: 938
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160344320
Equivalent to 9 /8s, 142 /16s and 169 /24s
Percentage of available RIPE address space announced: 56.2
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: 5845
Total LACNIC prefixes after maximum aggregation: 2225
Prefixes being announced from the LACNIC address blocks: 5492
Unique aggregates announced from the LACNIC address blocks: 3436
LACNIC Region origin ASes present in the Internet Routing Table: 374
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14711552
Equivalent to 0 /8s, 224 /16s and 123 /24s
Percentage of available LACNIC address space announced: 43.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1142
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 757
Unique aggregates announced from the AfriNIC address blocks: 563
AfriNIC Region origin ASes present in the Internet Routing Table: 92
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: 15
Number of AfriNIC addresses announced to Internet: 1840640
Equivalent to 0 /8s, 28 /16s and 22 /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 859 1091 624 Telstra Pty Ltd
4134 768 3480 138 Data Communications Bureau
4766 481 2901 258 Korea Internet Exchange for "
9583 465 40 81 Satyam Infoway Ltd.,
2907 355 1840 329 SINET Japan
9443 354 69 78 Primus Telecommunications
4755 351 125 51 Videsh Sanchar Nigam Ltd. Aut
9929 344 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 293 274 241 connect.com.au pty ltd
7474 270 284 211 Optus Communications Pty Ltd
9942 223 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 196 31 44 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 171 161 25 Hutchison Telecom (HK)
7633 158 23 42 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1457 6943 1013 AT&T
701 1318 8538 944 UUNET Technologies, Inc.
1239 932 3015 630 Sprint
3356 893 10951 685 Level 3 Communications, LLC
209 742 3469 503 Qwest
4323 718 561 199 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 693 515 262 BellSouth Network Solutions,
6198 567 372 209 BellSouth Network Solutions,
20115 516 827 265 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 502 643 114 Adelphia Corp.
7132 450 7847 333 Southwestern Bell Internet Se
2386 423 578 229 AT&T Data Communications Serv
6347 401 388 94 SAVVIS Communications Corpora
705 396 145 271 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 386 840 24 Comcast Cable Corporation
376 378 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 659 2038 551 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 268 968 258 TeliaNet Sweden
8220 268 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 241 510 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
3246 199 450 196 Song Networks
719 197 288 103 LANLINK autonomous system
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
3215 175 837 70 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
5400 155 238 136 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 131 607 131 Swisscom Ltd
12302 122 18 29 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 381 122 74 ImpSat
8151 265 373 127 UniNet S.A. de C.V.
11172 213 77 48 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 150 78 20 Telefonica Del Peru
7303 142 53 29 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
14420 73 5 31 ANDINATEL S.A.
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 62 6 24 TELECOMMUNICATIONS OF JAMAICA
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
9129 29 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 22 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 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
20928 12 16 1 Noor Advanced Technologies AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 701 693 Covad Communications
4134 768 630 Data Communications Bureau
4323 718 519 Time Warner Communications, I
6197 693 431 BellSouth Network Solutions,
7843 502 388 Adelphia Corp.
9583 465 384 Satyam Infoway Ltd.,
701 1318 374 UUNET Technologies, Inc.
22909 386 362 Comcast Cable Corporation
5668 377 361 Century Telephone
6198 567 358 BellSouth Network Solutions,
27364 364 345 Armstrong Cable Services
22773 365 328 Cox Communications, Inc. Atla
9929 344 313 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 401 307 SAVVIS Communications Corpora
6140 381 307 ImpSat
1239 932 302 Sprint
4755 351 300 Videsh Sanchar Nigam Ltd. Aut
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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
30306 UNALLOCATED 212.85.220.0/22 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
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 /11:16 /12:58
/13:113 /14:293 /15:508 /16:7746 /17:1997 /18:3558
/19:9369 /20:9795 /21:7062 /22:10067 /23:11445 /24:74713
/25:208 /26:252 /27:141 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1092 1457 AT&T
701 994 1318 UUNET Technologies, Inc.
1221 765 859 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 666 932 Sprint
3356 649 893 Level 3 Communications, LLC
6197 582 693 BellSouth Network Solutions,
4323 504 718 Time Warner Communications, I
209 493 742 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 457 567 BellSouth Network Solutions,
9583 451 465 Satyam Infoway Ltd.,
702 437 659 UUNET - Commercial IP service
4766 394 481 Korea Internet Exchange for "
5668 358 377 Century Telephone
6140 356 381 ImpSat
852 352 513 Telus Advanced Communications
27364 352 364 Armstrong Cable Services
705 350 396 UUNET Technologies, Inc.
19029 348 365 New Edge Networks
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:819 13:1 15:4 16:1 17:3
20:8 24:720 32:96 38:64 40:54 44:3
55:1 56:4 57:13 61:409 62:489 63:1844
64:1853 65:1959 66:2499 67:304 68:524 69:523
70:64 80:503 81:276 82:162 83:46 128:149
129:205 130:77 131:89 132:19 133:2 134:184
135:17 136:188 137:104 138:149 139:39 140:154
141:134 142:112 143:52 144:91 145:41 146:292
147:77 148:366 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:58 157:56 158:144
159:147 160:51 161:53 162:379 163:76 164:331
165:160 166:99 167:218 168:220 169:105 170:287
171:8 192:5530 193:2691 194:2026 195:1366 196:539
198:3647 199:3029 200:3288 201:8 202:4545 203:5510
204:2999 205:1973 206:2269 207:2481 208:2282 209:2838
210:1379 211:518 212:954 213:1138 214:36 215:28
216:3375 217:907 218:169 219:99 220:211 221:28
222:28
End of report
