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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 02 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143418
Prefixes after maximum aggregation: 85807
Unique aggregates announced to Internet: 68444
Total ASes present in the Internet Routing Table: 17693
Origin-only ASes present in the Internet Routing Table: 15356
Origin ASes announcing only one prefix: 7182
Transit ASes present in the Internet Routing Table: 2337
Transit-only ASes present in the Internet Routing Table: 74
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: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1307699232
Equivalent to 77 /8s, 241 /16s and 232 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65880
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27424
Total APNIC prefixes after maximum aggregation: 13965
Prefixes being announced from the APNIC address blocks: 25662
Unique aggregates announced from the APNIC address blocks: 14114
APNIC Region origin ASes present in the Internet Routing Table: 2087
APNIC Region origin ASes announcing only one prefix: 627
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 154325248
Equivalent to 9 /8s, 50 /16s and 209 /24s
Percentage of available APNIC address space announced: 70.4
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: 82126
Total ARIN prefixes after maximum aggregation: 50188
Prefixes being announced from the ARIN address blocks: 63720
Unique aggregates announced from the ARIN address blocks: 22104
ARIN Region origin ASes present in the Internet Routing Table: 9359
ARIN Region origin ASes announcing only one prefix: 3350
ARIN Region transit ASes present in the Internet Routing Table: 922
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 228345632
Equivalent to 13 /8s, 156 /16s and 71 /24s
Percentage of available ARIN address space announced: 75.6
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: 26468
Total RIPE prefixes after maximum aggregation: 18716
Prefixes being announced from the RIPE address blocks: 23279
Unique aggregates announced from the RIPE address blocks: 14923
RIPE Region origin ASes present in the Internet Routing Table: 5697
RIPE Region origin ASes announcing only one prefix: 3072
RIPE Region transit ASes present in the Internet Routing Table: 969
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 169382976
Equivalent to 10 /8s, 24 /16s and 148 /24s
Percentage of available RIPE address space announced: 59.4
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: 6186
Total LACNIC prefixes after maximum aggregation: 2260
Prefixes being announced from the LACNIC address blocks: 5903
Unique aggregates announced from the LACNIC address blocks: 3575
LACNIC Region origin ASes present in the Internet Routing Table: 387
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: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15449600
Equivalent to 0 /8s, 235 /16s and 190 /24s
Percentage of available LACNIC address space announced: 46.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1210
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 822
Unique aggregates announced from the AfriNIC address blocks: 649
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 20
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: 1913856
Equivalent to 0 /8s, 29 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 11.4
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 4092 150 Data Communications Bureau
4766 512 2896 269 Korea Internet Exchange for "
9583 494 39 105 Satyam Infoway Ltd.,
4755 392 133 50 Videsh Sanchar Nigam Ltd. Aut
9443 357 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 327 159 31 China Netcom Corp.
17557 326 23 163 Pakistan Telecom
703 317 342 245 UUNET
2764 287 258 234 connect.com.au pty ltd
7474 266 269 204 Optus Communications Pty Ltd
9942 235 71 128 COMindico Australia
9800 227 370 64 CHINA UNICOM
4802 226 25 140 Wantree Development
17633 224 56 6 ASN for Shandong Provincial N
9498 222 49 50 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 195 2023 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1407 6839 977 AT&T
701 1300 8442 936 UUNET Technologies, Inc.
6347 948 390 100 SAVVIS Communications Corpora
1239 940 2875 628 Sprint
3356 884 10925 667 Level 3 Communications, LLC
4323 770 568 212 Time Warner Communications, I
18566 740 193 8 Covad Communications
6197 732 495 308 BellSouth Network Solutions,
209 618 3413 501 Qwest
721 572 20721 254 DLA Systems Automation Center
20115 568 377 293 Charter Communications
7843 513 673 128 Adelphia Corp.
852 510 1142 399 Telus Advanced Communications
7132 487 7905 369 Southwestern Bell Internet Se
6198 448 394 202 BellSouth Network Solutions,
2386 408 533 228 AT&T Data Communications Serv
22909 397 829 30 Comcast Cable Corporation
22773 392 780 63 Cox Communications, Inc. Atla
4355 391 323 101 EarthLink, Inc.
705 388 128 264 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 649 2036 538 UUNET - Commercial IP service
3320 300 2468 237 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 279 433 266 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 216 747 185 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 196 113 177 Romania Data Systems S.A.
3215 183 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 151 29 129 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 146 207 120 BT Ignite European Backbone
3269 138 1131 64 TELECOM ITALIA
8866 132 15 14 Bulgarian Telecommunication C
3303 130 609 129 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 350 83 52 Servicios Alestra S.A de C.V
6140 332 137 63 ImpSat
8151 284 391 131 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 187 86 20 Telefonica Del Peru
6505 135 90 93 Global One Communicaoes Ltda
11664 133 11 21 Keytech SA
6503 127 202 85 AVANTEL, S.A.
7303 119 55 18 Telecom Argentina Stet-France
11556 103 65 25 Cable-Wireless Panama
11992 91 9 29 Integrated Systems
6535 81 5 16 Chilesat Servicios Empresari
11311 81 7 19 Sinectis S.A.
14420 81 5 31 ANDINATEL 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 112 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
9129 29 3 4 UUNET Kenya
14988 29 16 1 Botswana Telecommunications C
16637 29 9 22 Johnnic e-Ventures
6713 26 38 9 Itissalat Al-MAGHRIB
5713 25 125 23 Telkom SA Ltd
8524 25 2 4 AUCEGYPT Autonomous System
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
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 948 848 SAVVIS Communications Corpora
18566 740 732 Covad Communications
4134 810 660 Data Communications Bureau
4323 770 558 Time Warner Communications, I
6197 732 424 BellSouth Network Solutions,
9583 494 389 Satyam Infoway Ltd.,
7843 513 385 Adelphia Corp.
22909 397 367 Comcast Cable Corporation
701 1300 364 UUNET Technologies, Inc.
5668 381 363 Century Telephone
4755 392 342 Videsh Sanchar Nigam Ltd. Aut
6467 369 336 E.Spire Communications, Inc.
27364 349 330 Armstrong Cable Services
22773 392 329 Cox Communications, Inc. Atla
721 572 318 DLA Systems Automation Center
1239 940 312 Sprint
17676 341 308 XTAGE CORPORATION
11172 350 298 Servicios Alestra S.A de C.V
9929 327 296 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
65300 PRIVATE 195.177.192.0/23 21396 NetConnex Broadband
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 /8:19 /9:3 /10:6 /11:15 /12:61
/13:127 /14:301 /15:534 /16:7933 /17:2130 /18:3723
/19:9613 /20:10119 /21:7464 /22:10422 /23:11928 /24:78423
/25:211 /26:189 /27:99 /28:36 /29:7 /30:49
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 727 948 SAVVIS Communications Corpora
18566 723 740 Covad Communications
6197 552 732 BellSouth Network Solutions,
7018 539 1407 AT&T
3356 501 884 Level 3 Communications, LLC
702 401 649 UUNET - Commercial IP service
1239 369 940 Sprint
701 364 1300 UUNET Technologies, Inc.
9583 341 494 Satyam Infoway Ltd.,
27364 336 349 Armstrong Cable Services
5668 333 381 Century Telephone
6198 331 448 BellSouth Network Solutions,
4766 317 512 Korea Internet Exchange for "
20115 301 568 Charter Communications
6467 269 369 E.Spire Communications, Inc.
9929 259 327 China Netcom Corp.
13609 259 302 Choice One Communications Inc
14824 254 278 NewSouth Communications Corp.
3320 248 300 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:837 13:1 15:5 16:2
17:3 20:9 24:735 32:66 33:2 38:75
40:54 44:4 55:1 56:3 57:15 60:5
61:435 62:513 63:1893 64:2165 65:2039 66:2758
67:348 68:510 69:665 70:64 80:538 81:353
82:191 83:120 84:5 128:179 129:171 130:85
131:183 132:23 134:179 135:17 136:173 137:55
138:169 139:35 140:165 141:106 142:119 143:60
144:100 145:42 146:286 147:94 148:418 149:109
150:90 151:69 152:162 153:66 154:2 155:128
156:57 157:65 158:137 159:149 160:54 161:67
162:387 163:77 164:184 165:163 166:111 167:217
168:240 169:114 170:283 171:8 192:5565 193:2835
194:2080 195:1408 196:581 198:3655 199:3253 200:3613
201:10 202:4793 203:5678 204:3131 205:2082 206:2275
207:2496 208:2175 209:3049 210:1408 211:576 212:1006
213:1193 214:84 215:30 216:3776 217:984 218:171
219:121 220:228 221:29 222:121
End of report
