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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 28 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142886
Prefixes after maximum aggregation: 85675
Unique aggregates announced to Internet: 68792
Total ASes present in the Internet Routing Table: 17668
Origin-only ASes present in the Internet Routing Table: 15327
Origin ASes announcing only one prefix: 7175
Transit ASes present in the Internet Routing Table: 2341
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1305241632
Equivalent to 77 /8s, 204 /16s and 104 /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: 65576
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27352
Total APNIC prefixes after maximum aggregation: 13963
Prefixes being announced from the APNIC address blocks: 25592
Unique aggregates announced from the APNIC address blocks: 14060
APNIC Region origin ASes present in the Internet Routing Table: 2086
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: 153754624
Equivalent to 9 /8s, 42 /16s and 28 /24s
Percentage of available APNIC address space announced: 70.2
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: 81759
Total ARIN prefixes after maximum aggregation: 50096
Prefixes being announced from the ARIN address blocks: 63503
Unique aggregates announced from the ARIN address blocks: 22078
ARIN Region origin ASes present in the Internet Routing Table: 9338
ARIN Region origin ASes announcing only one prefix: 3352
ARIN Region transit ASes present in the Internet Routing Table: 925
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 228019488
Equivalent to 13 /8s, 151 /16s and 77 /24s
Percentage of available ARIN address space announced: 75.5
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: 26412
Total RIPE prefixes after maximum aggregation: 18688
Prefixes being announced from the RIPE address blocks: 23208
Unique aggregates announced from the RIPE address blocks: 15435
RIPE Region origin ASes present in the Internet Routing Table: 5691
RIPE Region origin ASes announcing only one prefix: 3066
RIPE Region transit ASes present in the Internet Routing Table: 975
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 167645760
Equivalent to 9 /8s, 254 /16s and 18 /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: 6153
Total LACNIC prefixes after maximum aggregation: 2248
Prefixes being announced from the LACNIC address blocks: 5797
Unique aggregates announced from the LACNIC address blocks: 3511
LACNIC Region origin ASes present in the Internet Routing Table: 386
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15368960
Equivalent to 0 /8s, 234 /16s and 131 /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: 1207
Total AfriNIC prefixes after maximum aggregation: 680
Prefixes being announced from the AfriNIC address blocks: 817
Unique aggregates announced from the AfriNIC address blocks: 645
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: 13
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1903616
Equivalent to 0 /8s, 29 /16s and 12 /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 817 1056 589 Telstra Pty Ltd
4134 810 4064 148 Data Communications Bureau
4766 500 2895 265 Korea Internet Exchange for "
9583 490 39 109 Satyam Infoway Ltd.,
4755 392 133 51 Videsh Sanchar Nigam Ltd. Aut
2907 353 1840 327 SINET Japan
9443 353 69 78 Primus Telecommunications
17676 341 5084 33 XTAGE CORPORATION
9929 329 159 31 China Netcom Corp.
17557 326 23 163 Pakistan Telecom
703 316 342 245 UUNET
2764 287 258 234 connect.com.au pty ltd
7474 266 269 204 Optus Communications Pty Ltd
9942 237 71 130 COMindico Australia
9800 225 369 62 CHINA UNICOM
4802 224 25 139 Wantree Development
9498 222 49 50 BHARTI BT INTERNET LTD.
17633 215 56 6 ASN for Shandong Provincial N
10036 197 18 178 C&M Communication Co. Ltd.
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 1422 6872 991 AT&T
701 1262 8440 930 UUNET Technologies, Inc.
6347 952 390 100 SAVVIS Communications Corpora
1239 942 2875 627 Sprint
3356 888 10929 671 Level 3 Communications, LLC
4323 755 571 213 Time Warner Communications, I
18566 734 192 8 Covad Communications
6197 727 479 303 BellSouth Network Solutions,
209 614 3427 499 Qwest
721 568 20736 259 DLA Systems Automation Center
20115 566 376 291 Charter Communications
7843 512 673 127 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
7132 486 7897 368 Southwestern Bell Internet Se
6198 450 395 204 BellSouth Network Solutions,
2386 409 533 229 AT&T Data Communications Serv
22909 397 831 34 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
22773 389 775 60 Cox Communications, Inc. Atla
705 388 128 264 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2036 537 UUNET - Commercial IP service
3320 300 2468 237 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 277 433 264 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 193 113 177 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 158 29 128 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 147 207 121 BT Ignite European Backbone
3269 138 1131 64 TELECOM ITALIA
8866 132 15 14 Bulgarian Telecommunication C
3303 131 610 130 Swisscom Ltd
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 352 99 54 Servicios Alestra S.A de C.V
6140 332 137 63 ImpSat
8151 280 390 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 187 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
11664 128 11 21 Keytech SA
6503 127 202 85 AVANTEL, S.A.
7303 119 55 18 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
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 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
11845 42 9 11 Data Pro Business Online
20928 42 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
14988 29 16 1 Botswana Telecommunications C
6713 26 38 9 Itissalat Al-MAGHRIB
5713 25 125 23 Telkom SA Ltd
8524 25 2 4 AUCEGYPT Autonomous System
9129 25 3 4 UUNET Kenya
12455 21 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
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 952 852 SAVVIS Communications Corpora
18566 734 726 Covad Communications
4134 810 662 Data Communications Bureau
4323 755 542 Time Warner Communications, I
6197 727 424 BellSouth Network Solutions,
7843 512 385 Adelphia Corp.
9583 490 381 Satyam Infoway Ltd.,
22909 397 363 Comcast Cable Corporation
5668 381 363 Century Telephone
4755 392 341 Videsh Sanchar Nigam Ltd. Aut
6467 370 337 E.Spire Communications, Inc.
701 1262 332 UUNET Technologies, Inc.
27364 349 330 Armstrong Cable Services
22773 389 329 Cox Communications, Inc. Atla
1239 942 315 Sprint
721 568 309 DLA Systems Automation Center
17676 341 308 XTAGE CORPORATION
11172 352 298 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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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 /14:301 /15:530 /16:7917 /17:2127 /18:3710
/19:9568 /20:10079 /21:7418 /22:10402 /23:11891 /24:78113
/25:213 /26:189 /27:100 /28:34 /29:9 /30:49
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 731 952 SAVVIS Communications Corpora
18566 717 734 Covad Communications
6197 558 727 BellSouth Network Solutions,
7018 546 1422 AT&T
3356 502 888 Level 3 Communications, LLC
702 398 646 UUNET - Commercial IP service
1239 371 942 Sprint
701 367 1262 UUNET Technologies, Inc.
9583 337 490 Satyam Infoway Ltd.,
27364 336 349 Armstrong Cable Services
5668 333 381 Century Telephone
6198 332 450 BellSouth Network Solutions,
4766 317 500 Korea Internet Exchange for "
20115 300 566 Charter Communications
6467 269 370 E.Spire Communications, Inc.
9929 260 329 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 248 300 Deutsche Telekom AG
13609 248 291 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:1 12:834 13:1 15:5 16:2
17:3 20:7 24:734 32:66 33:2 38:73
40:54 44:4 55:1 56:3 57:16 60:5
61:436 62:508 63:1891 64:2079 65:2042 66:2725
67:345 68:507 69:677 70:64 80:545 81:349
82:189 83:116 84:6 128:152 129:171 130:83
131:182 132:23 134:177 135:17 136:175 137:55
138:170 139:35 140:165 141:105 142:119 143:60
144:100 145:42 146:287 147:93 148:417 149:111
150:90 151:69 152:162 153:66 154:2 155:128
156:57 157:65 158:139 159:147 160:53 161:65
162:387 163:79 164:185 165:165 166:111 167:218
168:235 169:114 170:285 171:8 192:5566 193:2834
194:2071 195:1405 196:579 198:3650 199:3250 200:3536
201:9 202:4777 203:5669 204:3115 205:2083 206:2273
207:2503 208:2176 209:3059 210:1403 211:572 212:1002
213:1193 214:81 215:30 216:3768 217:989 218:171
219:123 220:222 221:30 222:112
End of report
