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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 04 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137379
Prefixes after maximum aggregation: 83395
Unique aggregates announced to Internet: 66490
Total ASes present in the Internet Routing Table: 17159
Origin-only ASes present in the Internet Routing Table: 14879
Origin ASes announcing only one prefix: 6899
Transit ASes present in the Internet Routing Table: 2280
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1283897264
Equivalent to 76 /8s, 134 /16s and 183 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 56.8
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26175
Total APNIC prefixes after maximum aggregation: 13626
Prefixes being announced from the APNIC address blocks: 24498
Unique aggregates announced from the APNIC address blocks: 13594
APNIC Region origin ASes present in the Internet Routing Table: 2045
APNIC Region origin ASes announcing only one prefix: 611
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 145766656
Equivalent to 8 /8s, 176 /16s and 57 /24s
Percentage of available APNIC address space announced: 66.5
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: 78987
Total ARIN prefixes after maximum aggregation: 48870
Prefixes being announced from the ARIN address blocks: 61000
Unique aggregates announced from the ARIN address blocks: 21497
ARIN Region origin ASes present in the Internet Routing Table: 9152
ARIN Region origin ASes announcing only one prefix: 3259
ARIN Region transit ASes present in the Internet Routing Table: 901
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222190880
Equivalent to 13 /8s, 62 /16s and 93 /24s
Percentage of available ARIN address space announced: 73.6
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 - 32767
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: 25240
Total RIPE prefixes after maximum aggregation: 18008
Prefixes being announced from the RIPE address blocks: 22033
Unique aggregates announced from the RIPE address blocks: 14479
RIPE Region origin ASes present in the Internet Routing Table: 5418
RIPE Region origin ASes announcing only one prefix: 2903
RIPE Region transit ASes present in the Internet Routing Table: 939
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160342528
Equivalent to 9 /8s, 142 /16s and 162 /24s
Percentage of available RIPE address space announced: 56.2
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
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: 5840
Total LACNIC prefixes after maximum aggregation: 2220
Prefixes being announced from the LACNIC address blocks: 5494
Unique aggregates announced from the LACNIC address blocks: 3434
LACNIC Region origin ASes present in the Internet Routing Table: 375
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14700800
Equivalent to 0 /8s, 224 /16s and 81 /24s
Percentage of available LACNIC address space announced: 43.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1136
Total AfriNIC prefixes after maximum aggregation: 671
Prefixes being announced from the AfriNIC address blocks: 756
Unique aggregates announced from the AfriNIC address blocks: 562
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1840384
Equivalent to 0 /8s, 28 /16s and 21 /24s
Percentage of available AfriNIC address space announced: 11.0
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 856 1091 623 Telstra Pty Ltd
4134 768 3480 138 Data Communications Bureau
4766 481 2901 258 Korea Internet Exchange for "
9583 465 40 80 Satyam Infoway Ltd.,
4755 357 125 49 Videsh Sanchar Nigam Ltd. Aut
2907 354 1840 329 SINET Japan
9443 354 69 78 Primus Telecommunications
9929 344 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 164 Pakistan Telecom
2764 293 274 241 connect.com.au pty ltd
7474 272 284 213 Optus Communications Pty Ltd
9942 222 70 125 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 210 31 44 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 170 161 25 Hutchison Telecom (HK)
7633 159 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1447 6941 1005 AT&T
701 1318 8522 944 UUNET Technologies, Inc.
1239 931 3000 630 Sprint
3356 893 10967 685 Level 3 Communications, LLC
209 738 3471 502 Qwest
4323 718 561 199 Time Warner Communications, I
6197 701 514 260 BellSouth Network Solutions,
18566 700 192 8 Covad Communications
6198 565 369 207 BellSouth Network Solutions,
852 514 1143 405 Telus Advanced Communications
20115 511 337 276 Charter Communications
7066 504 208 273 Virginia Polytechnic Institut
7843 502 643 114 Adelphia Corp.
7132 449 7847 332 Southwestern Bell Internet Se
2386 423 578 229 AT&T Data Communications Serv
705 399 145 274 UUNET Technologies, Inc.
6347 394 387 95 SAVVIS Communications Corpora
4355 391 323 101 EarthLink, Inc.
22909 385 840 24 Comcast Cable Corporation
27364 385 30 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 658 2038 552 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
8220 268 412 255 COLT Internet - International
3301 267 968 257 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 243 511 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
719 197 288 103 LANLINK autonomous system
3246 196 449 194 Song Networks
3215 176 839 69 France Telecom Transpac
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 174 111 163 Romania Data Systems S.A.
5400 155 238 136 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 133 607 133 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 113 166 89 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 380 122 74 ImpSat
8151 260 357 128 UniNet S.A. de C.V.
11172 211 76 46 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 151 78 20 Telefonica Del Peru
7303 141 53 28 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
14420 71 4 30 ANDINATEL S.A.
11311 70 7 15 Sinectis S.A.
14535 70 6 5 Techtel S.A.
14259 69 4 5 GTD Internet S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
14988 24 16 1 Botswana Telecommunications C
8524 22 2 4 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
2609 12 26 4 Tunisia BackBone AS
3208 12 2 1 ARN Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 700 692 Covad Communications
4134 768 630 Data Communications Bureau
4323 718 519 Time Warner Communications, I
6197 701 441 BellSouth Network Solutions,
7843 502 388 Adelphia Corp.
9583 465 385 Satyam Infoway Ltd.,
701 1318 374 UUNET Technologies, Inc.
22909 385 361 Comcast Cable Corporation
27364 385 361 Armstrong Cable Services
5668 376 360 Century Telephone
6198 565 358 BellSouth Network Solutions,
22773 365 328 Cox Communications, Inc. Atla
9929 344 313 China Netcom Corp.
4755 357 308 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
6140 380 306 ImpSat
1239 931 301 Sprint
6347 394 299 SAVVIS Communications Corpora
4355 391 290 EarthLink, Inc.
9443 354 276 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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
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
192.83.16.0/20 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
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 /12:58
/13:113 /14:293 /15:508 /16:7744 /17:2001 /18:3550
/19:9345 /20:9765 /21:7062 /22:10062 /23:11435 /24:74705
/25:208 /26:250 /27:140 /28:29 /29:5 /30:52
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1084 1447 AT&T
701 994 1318 UUNET Technologies, Inc.
1221 762 856 Telstra Pty Ltd
18566 683 700 Covad Communications
1239 666 931 Sprint
3356 648 893 Level 3 Communications, LLC
6197 590 701 BellSouth Network Solutions,
4323 504 718 Time Warner Communications, I
209 487 738 Qwest
7066 476 504 Virginia Polytechnic Institut
6198 457 565 BellSouth Network Solutions,
9583 451 465 Satyam Infoway Ltd.,
702 436 658 UUNET - Commercial IP service
4766 394 481 Korea Internet Exchange for "
27364 377 385 Armstrong Cable Services
5668 357 376 Century Telephone
6140 355 380 ImpSat
705 353 399 UUNET Technologies, Inc.
852 352 514 Telus Advanced Communications
2386 345 423 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:4 16:1 17:3
20:8 24:747 32:96 38:65 40:54 44:3
55:1 56:4 57:13 61:408 62:482 63:1845
64:1852 65:1956 66:2501 67:299 68:525 69:519
70:64 80:499 81:277 82:158 83:45 128:148
129:201 130:77 131:89 132:19 133:2 134:184
135:17 136:188 137:104 138:150 139:40 140:154
141:134 142:110 143:52 144:91 145:41 146:291
147:77 148:365 149:106 150:93 151:64 152:184
153:62 154:1 155:123 156:58 157:54 158:145
159:147 160:51 161:53 162:380 163:80 164:329
165:163 166:98 167:215 168:218 169:105 170:285
171:8 192:5537 193:2686 194:2024 195:1363 196:538
198:3637 199:3028 200:3286 201:8 202:4549 203:5524
204:2985 205:1977 206:2280 207:2479 208:2278 209:2855
210:1379 211:517 212:953 213:1135 214:36 215:27
216:3384 217:902 218:169 219:100 220:210 221:25
222:28
End of report
