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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 30 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142386
Prefixes after maximum aggregation: 85298
Unique aggregates announced to Internet: 68210
Total ASes present in the Internet Routing Table: 17487
Origin-only ASes present in the Internet Routing Table: 15151
Origin ASes announcing only one prefix: 7061
Transit ASes present in the Internet Routing Table: 2336
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.9
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: 19
Number of addresses announced to Internet: 1314636124
Equivalent to 78 /8s, 91 /16s and 193 /24s
Percentage of available address space announced: 35.5
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65778
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27115
Total APNIC prefixes after maximum aggregation: 14001
Prefixes being announced from the APNIC address blocks: 25352
Unique aggregates announced from the APNIC address blocks: 13921
APNIC Region origin ASes present in the Internet Routing Table: 2067
APNIC Region origin ASes announcing only one prefix: 615
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 150748224
Equivalent to 8 /8s, 252 /16s and 60 /24s
Percentage of available APNIC address space announced: 68.8
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: 82000
Total ARIN prefixes after maximum aggregation: 49865
Prefixes being announced from the ARIN address blocks: 63114
Unique aggregates announced from the ARIN address blocks: 21957
ARIN Region origin ASes present in the Internet Routing Table: 9275
ARIN Region origin ASes announcing only one prefix: 3301
ARIN Region transit ASes present in the Internet Routing Table: 905
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 226435104
Equivalent to 13 /8s, 127 /16s and 32 /24s
Percentage of available ARIN address space announced: 75.0
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 - 33791
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: 26073
Total RIPE prefixes after maximum aggregation: 18471
Prefixes being announced from the RIPE address blocks: 22856
Unique aggregates announced from the RIPE address blocks: 15160
RIPE Region origin ASes present in the Internet Routing Table: 5608
RIPE Region origin ASes announcing only one prefix: 3015
RIPE Region transit ASes present in the Internet Routing Table: 976
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 165124160
Equivalent to 9 /8s, 215 /16s and 152 /24s
Percentage of available RIPE address space announced: 57.9
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: 6009
Total LACNIC prefixes after maximum aggregation: 2282
Prefixes being announced from the LACNIC address blocks: 5645
Unique aggregates announced from the LACNIC address blocks: 3550
LACNIC Region origin ASes present in the Internet Routing Table: 374
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15078656
Equivalent to 0 /8s, 230 /16s and 21 /24s
Percentage of available LACNIC address space announced: 44.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1184
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 780
Unique aggregates announced from the AfriNIC address blocks: 584
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: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1886720
Equivalent to 0 /8s, 28 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 11.2
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 827 1041 596 Telstra Pty Ltd
4134 795 3664 147 Data Communications Bureau
4766 495 2895 263 Korea Internet Exchange for "
9583 464 38 99 Satyam Infoway Ltd.,
4755 373 134 54 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 339 23 166 Pakistan Telecom
9929 324 156 33 China Netcom Corp.
703 320 358 249 UUNET
2764 294 259 241 connect.com.au pty ltd
7474 264 268 206 Optus Communications Pty Ltd
9942 232 71 129 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 216 48 48 BHARTI BT INTERNET LTD.
10026 201 12 137 IXNet Hong Kong Limited
10036 198 18 179 C&M Communication Co. Ltd.
4837 188 2019 105 chinanet IDC center beijing n
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1443 6880 996 AT&T
701 1300 8485 927 UUNET Technologies, Inc.
6347 984 400 101 SAVVIS Communications Corpora
1239 933 2889 626 Sprint
3356 896 10934 678 Level 3 Communications, LLC
557 768 63 15 University of Maine System Co
4323 737 553 205 Time Warner Communications, I
18566 724 192 8 Covad Communications
6197 708 525 277 BellSouth Network Solutions,
209 617 3469 508 Qwest
20115 562 373 288 Charter Communications
6198 514 396 212 BellSouth Network Solutions,
852 512 1142 400 Telus Advanced Communications
7843 511 661 128 Adelphia Corp.
721 460 15394 333 DLA Systems Automation Center
7132 455 7872 341 Southwestern Bell Internet Se
2386 424 565 226 AT&T Data Communications Serv
22909 393 825 26 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 390 128 266 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2039 541 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 295 1098 268 TeliaNet Sweden
8220 274 429 262 COLT Internet - International
1257 249 498 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 212 477 209 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 186 112 173 Romania Data Systems S.A.
3215 183 895 70 France Telecom Transpac
719 180 288 102 LANLINK autonomous system
786 174 1794 174 The JANET IP Service
25186 174 156 115 France Telecom Transpac's Tra
6746 156 29 127 Dynamic Network Technologies,
5400 144 205 120 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 133 611 132 Swisscom Ltd
8866 128 14 11 Bulgarian Telecommunication C
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 58 Servicios Alestra S.A de C.V
6140 342 140 67 ImpSat
8151 270 373 128 UniNet S.A. de C.V.
6147 184 82 21 Telefonica Del Peru
7303 146 53 30 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 202 89 AVANTEL, S.A.
11992 90 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 80 5 17 Chilesat Servicios Empresari
14420 76 5 28 ANDINATEL S.A.
14535 76 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
4270 72 18 9 Red de Interconexion Universi
5639 71 8 8 Telecommunications Services o
14117 69 5 4 Telefonica del Sur S.A.
14259 67 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 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
20928 37 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
9129 28 3 4 UUNET Kenya
5713 25 125 23 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 7 AUCEGYPT Autonomous System
14988 24 16 1 Botswana Telecommunications C
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
21280 13 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 984 883 SAVVIS Communications Corpora
557 768 753 University of Maine System Co
18566 724 716 Covad Communications
4134 795 648 Data Communications Bureau
4323 737 532 Time Warner Communications, I
6197 708 431 BellSouth Network Solutions,
7843 511 383 Adelphia Corp.
701 1300 373 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 384 367 Century Telephone
9583 464 365 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
22773 388 332 Cox Communications, Inc. Atla
4755 373 319 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 933 307 Sprint
6198 514 302 BellSouth Network Solutions,
11172 356 298 Servicios Alestra S.A de C.V
9929 324 291 China Netcom Corp.
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
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
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
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
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
/13:125 /14:301 /15:520 /16:7880 /17:2072 /18:3651
/19:9498 /20:9936 /21:7300 /22:10376 /23:11891 /24:77333
/25:375 /26:383 /27:373 /28:173 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 760 984 SAVVIS Communications Corpora
557 735 768 University of Maine System Co
18566 707 724 Covad Communications
7018 558 1443 AT&T
6197 537 708 BellSouth Network Solutions,
3356 503 896 Level 3 Communications, LLC
702 396 648 UUNET - Commercial IP service
6198 384 514 BellSouth Network Solutions,
1239 371 933 Sprint
701 367 1300 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 384 Century Telephone
4766 313 495 Korea Internet Exchange for "
9583 313 464 Satyam Infoway Ltd.,
20115 297 562 Charter Communications
9929 257 324 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 242 284 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:828 13:1 15:5 16:2 17:3
20:8 24:752 32:65 33:1 38:73 40:53
44:4 55:1 56:3 57:16 61:454 62:508
63:1853 64:2042 65:2048 66:2635 67:324 68:499
69:592 70:64 80:536 81:320 82:181 83:93
84:3 128:143 129:176 130:79 131:187 132:21
133:1 134:182 135:17 136:179 137:54 138:167
139:35 140:214 141:124 142:116 143:57 144:103
145:41 146:307 147:77 148:417 149:119 150:96
151:71 152:161 153:64 154:2 155:125 156:60
157:61 158:144 159:147 160:52 161:65 162:383
163:77 164:180 165:160 166:100 167:220 168:229
169:161 170:291 171:8 192:5561 193:2787 194:2048
195:1369 196:553 198:3689 199:3112 200:3403 201:8
202:4682 203:5627 204:3118 205:2091 206:2278 207:2531
208:2214 209:3056 210:1436 211:566 212:987 213:1170
214:66 215:30 216:3740 217:979 218:169 219:117
220:233 221:30 222:40
End of report
