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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 14 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142242
Prefixes after maximum aggregation: 85510
Unique aggregates announced to Internet: 68462
Total ASes present in the Internet Routing Table: 17589
Origin-only ASes present in the Internet Routing Table: 15241
Origin ASes announcing only one prefix: 7144
Transit ASes present in the Internet Routing Table: 2348
Transit-only ASes present in the Internet Routing Table: 76
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: 1302296560
Equivalent to 77 /8s, 159 /16s and 119 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65243
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27284
Total APNIC prefixes after maximum aggregation: 14018
Prefixes being announced from the APNIC address blocks: 25518
Unique aggregates announced from the APNIC address blocks: 13986
APNIC Region origin ASes present in the Internet Routing Table: 2070
APNIC Region origin ASes announcing only one prefix: 621
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 152964032
Equivalent to 9 /8s, 30 /16s and 11 /24s
Percentage of available APNIC address space announced: 69.8
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: 81350
Total ARIN prefixes after maximum aggregation: 49996
Prefixes being announced from the ARIN address blocks: 63137
Unique aggregates announced from the ARIN address blocks: 21922
ARIN Region origin ASes present in the Internet Routing Table: 9313
ARIN Region origin ASes announcing only one prefix: 3338
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: 17
Number of ARIN addresses announced to Internet: 227371040
Equivalent to 13 /8s, 141 /16s and 104 /24s
Percentage of available ARIN address space announced: 75.3
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: 26266
Total RIPE prefixes after maximum aggregation: 18567
Prefixes being announced from the RIPE address blocks: 23022
Unique aggregates announced from the RIPE address blocks: 15298
RIPE Region origin ASes present in the Internet Routing Table: 5658
RIPE Region origin ASes announcing only one prefix: 3052
RIPE Region transit ASes present in the Internet Routing Table: 979
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 166105152
Equivalent to 9 /8s, 230 /16s and 144 /24s
Percentage of available RIPE address space announced: 58.2
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, 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: 6181
Total LACNIC prefixes after maximum aggregation: 2246
Prefixes being announced from the LACNIC address blocks: 5845
Unique aggregates announced from the LACNIC address blocks: 3576
LACNIC Region origin ASes present in the Internet Routing Table: 380
LACNIC Region origin ASes announcing only one prefix: 110
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15292416
Equivalent to 0 /8s, 233 /16s and 88 /24s
Percentage of available LACNIC address space announced: 45.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1158
Total AfriNIC prefixes after maximum aggregation: 683
Prefixes being announced from the AfriNIC address blocks: 810
Unique aggregates announced from the AfriNIC address blocks: 636
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 23
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: 15
Number of AfriNIC addresses announced to Internet: 1893376
Equivalent to 0 /8s, 28 /16s and 228 /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
4134 827 4048 149 Data Communications Bureau
1221 822 1057 592 Telstra Pty Ltd
4766 494 2895 264 Korea Internet Exchange for "
9583 490 39 105 Satyam Infoway Ltd.,
4755 393 134 59 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 327 157 32 China Netcom Corp.
17557 321 22 164 Pakistan Telecom
703 319 342 248 UUNET
2764 287 258 237 connect.com.au pty ltd
7474 266 269 206 Optus Communications Pty Ltd
9942 230 71 128 COMindico Australia
4802 226 25 141 Wantree Development
9800 224 369 62 CHINA UNICOM
9498 218 48 49 BHARTI BT INTERNET LTD.
10036 198 18 179 C&M Communication Co. Ltd.
4837 189 2019 105 chinanet IDC center beijing n
17974 183 51 98 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1421 6877 987 AT&T
701 1305 8441 936 UUNET Technologies, Inc.
6347 964 396 102 SAVVIS Communications Corpora
1239 934 2889 627 Sprint
3356 893 10932 674 Level 3 Communications, LLC
4323 742 569 208 Time Warner Communications, I
18566 726 192 8 Covad Communications
6197 712 526 280 BellSouth Network Solutions,
209 615 3454 506 Qwest
20115 566 376 291 Charter Communications
7843 515 669 130 Adelphia Corp.
6198 513 396 214 BellSouth Network Solutions,
852 510 1142 398 Telus Advanced Communications
7132 467 7863 351 Southwestern Bell Internet Se
721 466 15263 337 DLA Systems Automation Center
2386 409 549 228 AT&T Data Communications Serv
22909 398 826 22 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 390 128 266 UUNET Technologies, Inc.
376 385 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 652 2040 544 UUNET - Commercial IP service
3320 297 2463 237 Deutsche Telekom AG
3301 285 1100 274 TeliaNet Sweden
8220 274 429 262 COLT Internet - International
1257 248 498 196 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 213 479 210 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 189 112 176 Romania Data Systems S.A.
3215 178 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 158 29 128 Dynamic Network Technologies,
719 151 288 103 LANLINK autonomous system
5400 144 205 119 BT Ignite European Backbone
3269 135 1099 64 TELECOM ITALIA
3303 130 609 129 Swisscom Ltd
8866 130 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 334 140 65 ImpSat
8151 276 389 128 UniNet S.A. de C.V.
16814 219 14 8 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
6503 129 202 87 AVANTEL, S.A.
7303 117 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 79 5 29 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
11311 72 7 17 Sinectis S.A.
14535 72 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
4270 69 17 8 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 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
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
14988 25 16 1 Botswana Telecommunications C
8524 24 2 7 AUCEGYPT Autonomous System
12455 23 4 2 Jambonet 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
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 964 862 SAVVIS Communications Corpora
18566 726 718 Covad Communications
4134 827 678 Data Communications Bureau
4323 742 534 Time Warner Communications, I
6197 712 432 BellSouth Network Solutions,
7843 515 385 Adelphia Corp.
9583 490 385 Satyam Infoway Ltd.,
22909 398 376 Comcast Cable Corporation
701 1305 369 UUNET Technologies, Inc.
5668 380 362 Century Telephone
27364 377 358 Armstrong Cable Services
4755 393 334 Videsh Sanchar Nigam Ltd. Aut
22773 382 327 Cox Communications, Inc. Atla
6467 342 310 E.Spire Communications, Inc.
17676 341 308 XTAGE CORPORATION
1239 934 307 Sprint
6198 513 299 BellSouth Network Solutions,
11172 356 298 Servicios Alestra S.A de C.V
9929 327 295 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 /12:60
/13:127 /14:302 /15:524 /16:7900 /17:2107 /18:3698
/19:9545 /20:10044 /21:7361 /22:10329 /23:11878 /24:77688
/25:220 /26:200 /27:99 /28:25 /29:15 /30:68
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 743 964 SAVVIS Communications Corpora
18566 709 726 Covad Communications
7018 543 1421 AT&T
6197 541 712 BellSouth Network Solutions,
3356 500 893 Level 3 Communications, LLC
702 400 652 UUNET - Commercial IP service
6198 382 513 BellSouth Network Solutions,
1239 373 934 Sprint
701 369 1305 UUNET Technologies, Inc.
27364 364 377 Armstrong Cable Services
9583 335 490 Satyam Infoway Ltd.,
5668 333 380 Century Telephone
4766 313 494 Korea Internet Exchange for "
20115 300 566 Charter Communications
9929 259 327 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 246 297 Deutsche Telekom AG
6467 246 342 E.Spire Communications, Inc.
13609 245 288 Choice One Communications Inc
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:829 13:1 15:5 16:2 17:3
20:8 24:762 32:65 33:2 38:74 40:53
44:4 55:1 56:3 57:16 60:4 61:456
62:509 63:1874 64:2053 65:2041 66:2695 67:330
68:504 69:638 70:64 80:564 81:339 82:184
83:103 84:6 128:146 129:171 130:81 131:186
132:23 134:177 135:17 136:178 137:54 138:169
139:37 140:166 141:107 142:118 143:60 144:102
145:42 146:288 147:77 148:417 149:109 150:94
151:71 152:162 153:64 154:2 155:145 156:57
157:63 158:139 159:148 160:52 161:66 162:382
163:76 164:174 165:164 166:108 167:219 168:232
169:111 170:286 171:8 192:5551 193:2809 194:2057
195:1389 196:574 198:3663 199:3100 200:3610 201:8
202:4727 203:5651 204:3116 205:2104 206:2259 207:2499
208:2194 209:3034 210:1453 211:572 212:995 213:1174
214:70 215:30 216:3742 217:946 218:171 219:119
220:225 221:31 222:72
End of report
