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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142758
Prefixes after maximum aggregation: 85491
Unique aggregates announced to Internet: 68702
Total ASes present in the Internet Routing Table: 17627
Origin-only ASes present in the Internet Routing Table: 15294
Origin ASes announcing only one prefix: 7150
Transit ASes present in the Internet Routing Table: 2333
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1304570592
Equivalent to 77 /8s, 194 /16s and 42 /24s
Percentage of available address space announced: 35.2
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27602
Total APNIC prefixes after maximum aggregation: 13984
Prefixes being announced from the APNIC address blocks: 25660
Unique aggregates announced from the APNIC address blocks: 14020
APNIC Region origin ASes present in the Internet Routing Table: 2080
APNIC Region origin ASes announcing only one prefix: 623
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 153454080
Equivalent to 9 /8s, 37 /16s and 134 /24s
Percentage of available APNIC address space announced: 70.0
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: 81413
Total ARIN prefixes after maximum aggregation: 49967
Prefixes being announced from the ARIN address blocks: 63166
Unique aggregates announced from the ARIN address blocks: 21999
ARIN Region origin ASes present in the Internet Routing Table: 9323
ARIN Region origin ASes announcing only one prefix: 3332
ARIN Region transit ASes present in the Internet Routing Table: 916
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 227671072
Equivalent to 13 /8s, 145 /16s and 252 /24s
Percentage of available ARIN address space announced: 75.4
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: 26359
Total RIPE prefixes after maximum aggregation: 18605
Prefixes being announced from the RIPE address blocks: 23147
Unique aggregates announced from the RIPE address blocks: 15341
RIPE Region origin ASes present in the Internet Routing Table: 5677
RIPE Region origin ASes announcing only one prefix: 3061
RIPE Region transit ASes present in the Internet Routing Table: 976
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 167690944
Equivalent to 9 /8s, 254 /16s and 194 /24s
Percentage of available RIPE address space announced: 58.8
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, 33792 - 34815
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: 6184
Total LACNIC prefixes after maximum aggregation: 2251
Prefixes being announced from the LACNIC address blocks: 5855
Unique aggregates announced from the LACNIC address blocks: 3595
LACNIC Region origin ASes present in the Internet Routing Table: 384
LACNIC Region origin ASes announcing only one prefix: 113
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: 16
Number of LACNIC addresses announced to Internet: 15369984
Equivalent to 0 /8s, 234 /16s and 135 /24s
Percentage of available LACNIC address space announced: 45.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1197
Total AfriNIC prefixes after maximum aggregation: 684
Prefixes being announced from the AfriNIC address blocks: 809
Unique aggregates announced from the AfriNIC address blocks: 639
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: 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: 1900544
Equivalent to 0 /8s, 29 /16s and 0 /24s
Percentage of available AfriNIC address space announced: 11.3
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 821 1057 591 Telstra Pty Ltd
4134 811 4080 150 Data Communications Bureau
4766 500 2895 264 Korea Internet Exchange for "
9583 492 40 107 Satyam Infoway Ltd.,
4755 395 134 54 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 329 159 31 China Netcom Corp.
17557 321 22 164 Pakistan Telecom
703 317 342 246 UUNET
2764 288 258 235 connect.com.au pty ltd
7474 268 269 206 Optus Communications Pty Ltd
9942 231 71 128 COMindico Australia
4802 225 25 140 Wantree Development
9800 225 369 62 CHINA UNICOM
9498 220 48 50 BHARTI BT INTERNET LTD.
10036 197 18 178 C&M Communication Co. Ltd.
17633 197 54 8 ASN for Shandong Provincial N
4837 191 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6878 992 AT&T
701 1296 8442 927 UUNET Technologies, Inc.
6347 952 390 126 SAVVIS Communications Corpora
1239 939 2875 624 Sprint
3356 893 10933 674 Level 3 Communications, LLC
4323 740 570 210 Time Warner Communications, I
18566 727 192 8 Covad Communications
6197 715 479 301 BellSouth Network Solutions,
209 612 3442 500 Qwest
721 570 20772 264 DLA Systems Automation Center
20115 524 367 269 Charter Communications
852 510 1142 398 Telus Advanced Communications
7843 510 664 143 Adelphia Corp.
7132 478 7889 362 Southwestern Bell Internet Se
6198 450 395 204 BellSouth Network Solutions,
2386 410 533 229 AT&T Data Communications Serv
22909 396 826 32 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 387 128 263 UUNET Technologies, Inc.
22773 386 774 58 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2039 539 UUNET - Commercial IP service
3320 299 2463 239 Deutsche Telekom AG
3301 281 1098 270 TeliaNet Sweden
8220 275 433 263 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 217 747 186 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 215 484 212 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 192 113 176 Romania Data Systems S.A.
3215 182 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 157 29 127 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 145 207 120 BT Ignite European Backbone
3269 137 1131 63 TELECOM ITALIA
3303 131 610 130 Swisscom Ltd
8866 131 14 12 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 354 96 56 Servicios Alestra S.A de C.V
6140 334 140 65 ImpSat
8151 277 389 126 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
6503 128 202 86 AVANTEL, S.A.
7303 119 54 17 Telecom Argentina Stet-France
11992 91 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 81 5 31 ANDINATEL S.A.
11311 80 7 18 Sinectis S.A.
15311 75 19 37 Telefonica Empresas
14535 73 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
11340 67 5 36 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 42 16 1 Noor Advanced Technologies AS
11845 39 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
6713 26 38 9 Itissalat Al-MAGHRIB
9129 26 3 4 UUNET Kenya
5713 25 125 23 Telkom SA Ltd
8524 24 2 7 AUCEGYPT Autonomous System
14988 24 16 1 Botswana Telecommunications C
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 15 3 10 Vodacom Internet Company
15706 15 4 2 Sudatel Internet Exchange Aut
8346 13 6 12 SONATEL-AS Autonomous System
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
6347 952 826 SAVVIS Communications Corpora
18566 727 719 Covad Communications
4134 811 661 Data Communications Bureau
4323 740 530 Time Warner Communications, I
6197 715 414 BellSouth Network Solutions,
9583 492 385 Satyam Infoway Ltd.,
701 1296 369 UUNET Technologies, Inc.
7843 510 367 Adelphia Corp.
22909 396 364 Comcast Cable Corporation
5668 381 363 Century Telephone
4755 395 341 Videsh Sanchar Nigam Ltd. Aut
6467 369 336 E.Spire Communications, Inc.
27364 349 330 Armstrong Cable Services
22773 386 328 Cox Communications, Inc. Atla
1239 939 315 Sprint
17676 341 308 XTAGE CORPORATION
721 570 306 DLA Systems Automation Center
11172 354 298 Servicios Alestra S.A de C.V
9929 329 298 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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm
63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm
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 /8:18 /9:3 /10:6 /11:15 /12:61
/13:127 /14:302 /15:530 /16:7913 /17:2119 /18:3701
/19:9557 /20:10039 /21:7387 /22:10358 /23:11893 /24:77980
/25:245 /26:249 /27:126 /28:34 /29:17 /30:68
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 736 952 SAVVIS Communications Corpora
18566 710 727 Covad Communications
7018 548 1427 AT&T
6197 546 715 BellSouth Network Solutions,
3356 501 893 Level 3 Communications, LLC
702 396 648 UUNET - Commercial IP service
701 372 1296 UUNET Technologies, Inc.
1239 370 939 Sprint
9583 337 492 Satyam Infoway Ltd.,
27364 336 349 Armstrong Cable Services
5668 334 381 Century Telephone
6198 331 450 BellSouth Network Solutions,
4766 317 500 Korea Internet Exchange for "
6467 268 369 E.Spire Communications, Inc.
20115 264 524 Charter Communications
9929 260 329 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 248 299 Deutsche Telekom AG
13609 245 288 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:836 13:1 15:5 16:2 17:3
20:7 24:708 32:66 33:2 38:75 40:54
44:4 55:1 56:3 57:16 60:5 61:440
62:507 63:1879 64:2072 65:2039 66:2720 67:335
68:504 69:664 70:64 80:561 81:347 82:188
83:114 84:6 128:149 129:172 130:80 131:186
132:23 134:178 135:17 136:174 137:54 138:170
139:35 140:166 141:106 142:119 143:60 144:101
145:42 146:287 147:89 148:417 149:110 150:93
151:69 152:162 153:64 154:2 155:126 156:57
157:64 158:139 159:197 160:53 161:65 162:385
163:79 164:186 165:165 166:111 167:218 168:231
169:116 170:284 171:8 192:5562 193:2830 194:2065
195:1383 196:575 198:3645 199:3098 200:3615 201:9
202:4773 203:5692 204:3134 205:2085 206:2263 207:2505
208:2176 209:3044 210:1448 211:573 212:999 213:1192
214:70 215:30 216:3753 217:980 218:171 219:119
220:227 221:31 222:93
End of report
