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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141920
Prefixes after maximum aggregation: 85378
Unique aggregates announced to Internet: 68319
Total ASes present in the Internet Routing Table: 17538
Origin-only ASes present in the Internet Routing Table: 15192
Origin ASes announcing only one prefix: 7116
Transit ASes present in the Internet Routing Table: 2346
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1317151464
Equivalent to 78 /8s, 130 /16s and 34 /24s
Percentage of available address space announced: 35.5
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27281
Total APNIC prefixes after maximum aggregation: 14033
Prefixes being announced from the APNIC address blocks: 25499
Unique aggregates announced from the APNIC address blocks: 13942
APNIC Region origin ASes present in the Internet Routing Table: 2066
APNIC Region origin ASes announcing only one prefix: 620
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 151461312
Equivalent to 9 /8s, 7 /16s and 29 /24s
Percentage of available APNIC address space announced: 69.1
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: 81091
Total ARIN prefixes after maximum aggregation: 49872
Prefixes being announced from the ARIN address blocks: 62892
Unique aggregates announced from the ARIN address blocks: 21946
ARIN Region origin ASes present in the Internet Routing Table: 9288
ARIN Region origin ASes announcing only one prefix: 3320
ARIN Region transit ASes present in the Internet Routing Table: 907
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 227262240
Equivalent to 13 /8s, 139 /16s and 191 /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: 26157
Total RIPE prefixes after maximum aggregation: 18536
Prefixes being announced from the RIPE address blocks: 22932
Unique aggregates announced from the RIPE address blocks: 15229
RIPE Region origin ASes present in the Internet Routing Table: 5638
RIPE Region origin ASes announcing only one prefix: 3042
RIPE Region transit ASes present in the Internet Routing Table: 985
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 165982272
Equivalent to 9 /8s, 228 /16s and 176 /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: 6207
Total LACNIC prefixes after maximum aggregation: 2254
Prefixes being announced from the LACNIC address blocks: 5871
Unique aggregates announced from the LACNIC address blocks: 3585
LACNIC Region origin ASes present in the Internet Routing Table: 380
LACNIC Region origin ASes announcing only one prefix: 111
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15259904
Equivalent to 0 /8s, 232 /16s and 217 /24s
Percentage of available LACNIC address space announced: 45.5
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1183
Total AfriNIC prefixes after maximum aggregation: 683
Prefixes being announced from the AfriNIC address blocks: 783
Unique aggregates announced from the AfriNIC address blocks: 587
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: 1888512
Equivalent to 0 /8s, 28 /16s and 209 /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 822 1057 592 Telstra Pty Ltd
4134 805 3752 146 Data Communications Bureau
4766 499 2895 266 Korea Internet Exchange for "
9583 480 39 99 Satyam Infoway Ltd.,
4755 397 133 61 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 349 1840 326 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 326 157 32 China Netcom Corp.
17557 325 23 167 Pakistan Telecom
703 322 343 251 UUNET
2764 289 258 237 connect.com.au pty ltd
7474 267 269 207 Optus Communications Pty Ltd
9942 230 71 128 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 218 48 49 BHARTI BT INTERNET LTD.
4802 209 24 138 Wantree Development
10026 206 11 131 IXNet Hong Kong Limited
10036 198 18 179 C&M Communication Co. Ltd.
4837 189 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1442 6832 993 AT&T
701 1303 8486 930 UUNET Technologies, Inc.
6347 984 400 103 SAVVIS Communications Corpora
1239 935 2889 628 Sprint
3356 889 10900 674 Level 3 Communications, LLC
4323 740 570 207 Time Warner Communications, I
18566 725 192 8 Covad Communications
6197 710 526 278 BellSouth Network Solutions,
209 612 3454 505 Qwest
20115 563 374 289 Charter Communications
6198 515 396 213 BellSouth Network Solutions,
7843 513 665 129 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
7132 456 7872 342 Southwestern Bell Internet Se
2386 424 565 226 AT&T Data Communications Serv
721 396 13173 289 DLA Systems Automation Center
22909 393 825 26 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 389 128 265 UUNET Technologies, Inc.
22773 382 781 55 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2039 542 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 279 1098 268 TeliaNet Sweden
8220 274 413 262 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 212 478 209 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 190 112 176 Romania Data Systems S.A.
3215 183 895 70 France Telecom Transpac
719 181 288 103 LANLINK autonomous system
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 156 29 128 Dynamic Network Technologies,
5400 145 205 120 BT Ignite European Backbone
3269 135 1099 64 TELECOM ITALIA
3303 131 609 130 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 332 140 65 ImpSat
8151 281 389 131 UniNet S.A. de C.V.
16814 219 14 8 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 147 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 81 5 16 Chilesat Servicios Empresari
14420 78 5 28 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 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
14259 67 4 5 GTD Internet S.A.
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 39 9 11 Data Pro Business Online
20928 35 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
16637 29 9 22 Johnnic e-Ventures
12455 26 4 2 Jambonet Autonomous system
5713 25 125 23 Telkom SA Ltd
9129 25 3 3 UUNET Kenya
14988 25 16 1 Botswana Telecommunications C
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 7 AUCEGYPT 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
21280 13 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 984 881 SAVVIS Communications Corpora
18566 725 717 Covad Communications
4134 805 659 Data Communications Bureau
4323 740 533 Time Warner Communications, I
6197 710 432 BellSouth Network Solutions,
7843 513 384 Adelphia Corp.
9583 480 381 Satyam Infoway Ltd.,
701 1303 373 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 380 362 Century Telephone
27364 376 357 Armstrong Cable Services
4755 397 336 Videsh Sanchar Nigam Ltd. Aut
22773 382 327 Cox Communications, Inc. Atla
17676 341 308 XTAGE CORPORATION
1239 935 307 Sprint
6198 515 302 BellSouth Network Solutions,
11172 356 298 Servicios Alestra S.A de C.V
9929 326 294 China Netcom Corp.
4355 391 290 EarthLink, Inc.
9443 353 275 Primus Telecommunications
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
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
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
192.172.0.0/19 568 DISO-UNRRA
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
/13:127 /14:301 /15:524 /16:7894 /17:2089 /18:3665
/19:9521 /20:9982 /21:7332 /22:10368 /23:11849 /24:77428
/25:225 /26:226 /27:166 /28:25 /29:15 /30:67
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 761 984 SAVVIS Communications Corpora
18566 708 725 Covad Communications
7018 564 1442 AT&T
6197 539 710 BellSouth Network Solutions,
3356 501 889 Level 3 Communications, LLC
702 396 648 UUNET - Commercial IP service
6198 385 515 BellSouth Network Solutions,
1239 373 935 Sprint
701 367 1303 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 333 380 Century Telephone
9583 326 480 Satyam Infoway Ltd.,
4766 318 499 Korea Internet Exchange for "
20115 297 563 Charter Communications
9929 258 326 China Netcom Corp.
14824 255 279 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
13609 244 286 Choice One Communications Inc
25844 244 244 Skadden, Arps, Slate, Meagher
6517 242 268 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:828 13:1 15:5 16:2 17:3
20:8 24:754 32:65 33:2 38:72 40:54
44:4 55:1 56:3 57:16 61:454 62:505
63:1862 64:2036 65:2043 66:2669 67:332 68:502
69:596 70:64 80:544 81:319 82:183 83:96
84:5 128:147 129:176 130:80 131:185 132:23
134:178 135:17 136:178 137:54 138:170 139:35
140:169 141:122 142:118 143:58 144:103 145:41
146:297 147:77 148:414 149:116 150:96 151:72
152:161 153:64 154:2 155:124 156:60 157:63
158:140 159:148 160:52 161:64 162:382 163:77
164:186 165:160 166:104 167:220 168:232 169:111
170:286 171:8 192:5553 193:2810 194:2052 195:1376
196:554 198:3681 199:3106 200:3604 201:8 202:4729
203:5638 204:3132 205:2092 206:2262 207:2477 208:2196
209:2987 210:1442 211:571 212:982 213:1169 214:66
215:30 216:3717 217:979 218:170 219:119 220:233
221:31 222:61
End of report
