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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140467
Prefixes after maximum aggregation: 85216
Unique aggregates announced to Internet: 67548
Total ASes present in the Internet Routing Table: 17353
Origin-only ASes present in the Internet Routing Table: 15052
Origin ASes announcing only one prefix: 6983
Transit ASes present in the Internet Routing Table: 2301
Transit-only ASes present in the Internet Routing Table: 73
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1308343804
Equivalent to 77 /8s, 251 /16s and 189 /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: 63510
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26571
Total APNIC prefixes after maximum aggregation: 13854
Prefixes being announced from the APNIC address blocks: 24837
Unique aggregates announced from the APNIC address blocks: 13882
APNIC Region origin ASes present in the Internet Routing Table: 2060
APNIC Region origin ASes announcing only one prefix: 614
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 148822528
Equivalent to 8 /8s, 222 /16s and 218 /24s
Percentage of available APNIC address space announced: 67.9
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: 81088
Total ARIN prefixes after maximum aggregation: 50219
Prefixes being announced from the ARIN address blocks: 62637
Unique aggregates announced from the ARIN address blocks: 21734
ARIN Region origin ASes present in the Internet Routing Table: 9248
ARIN Region origin ASes announcing only one prefix: 3277
ARIN Region transit ASes present in the Internet Routing Table: 914
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224615712
Equivalent to 13 /8s, 99 /16s and 93 /24s
Percentage of available ARIN address space announced: 74.4
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: 25586
Total RIPE prefixes after maximum aggregation: 18242
Prefixes being announced from the RIPE address blocks: 22397
Unique aggregates announced from the RIPE address blocks: 14912
RIPE Region origin ASes present in the Internet Routing Table: 5502
RIPE Region origin ASes announcing only one prefix: 2961
RIPE Region transit ASes present in the Internet Routing Table: 940
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 163070720
Equivalent to 9 /8s, 184 /16s and 67 /24s
Percentage of available RIPE address space announced: 57.2
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: 6083
Total LACNIC prefixes after maximum aggregation: 2238
Prefixes being announced from the LACNIC address blocks: 5717
Unique aggregates announced from the LACNIC address blocks: 3495
LACNIC Region origin ASes present in the Internet Routing Table: 381
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14965248
Equivalent to 0 /8s, 228 /16s and 90 /24s
Percentage of available LACNIC address space announced: 44.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1134
Total AfriNIC prefixes after maximum aggregation: 663
Prefixes being announced from the AfriNIC address blocks: 766
Unique aggregates announced from the AfriNIC address blocks: 573
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 22
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: 16
Number of AfriNIC addresses announced to Internet: 1862912
Equivalent to 0 /8s, 28 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 11.1
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 848 1091 613 Telstra Pty Ltd
4134 735 3532 143 Data Communications Bureau
4766 490 2896 264 Korea Internet Exchange for "
9583 441 34 130 Satyam Infoway Ltd.,
4755 367 134 58 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 347 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
17557 330 23 165 Pakistan Telecom
703 329 375 256 UUNET
2764 295 274 241 connect.com.au pty ltd
7474 263 268 207 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 217 47 46 BHARTI BT INTERNET LTD.
4780 210 193 26 Digital United Inc.
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
4837 181 2003 108 chinanet IDC center beijing n
10036 180 16 168 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1442 6891 1004 AT&T
701 1312 8513 939 UUNET Technologies, Inc.
6347 939 400 99 SAVVIS Communications Corpora
1239 934 2997 634 Sprint
3356 893 10900 678 Level 3 Communications, LLC
209 735 3458 501 Qwest
4323 735 568 205 Time Warner Communications, I
6197 709 525 274 BellSouth Network Solutions,
18566 707 192 8 Covad Communications
6198 563 376 215 BellSouth Network Solutions,
721 557 4445 409 DLA Systems Automation Center
20115 552 365 286 Charter Communications
852 515 1142 405 Telus Advanced Communications
7843 505 648 119 Adelphia Corp.
7132 449 7851 335 Southwestern Bell Internet Se
2386 427 582 231 AT&T Data Communications Serv
705 395 144 270 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
376 384 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 652 2042 547 UUNET - Commercial IP service
3320 298 2477 238 Deutsche Telekom AG
8220 273 429 261 COLT Internet - International
3301 272 1096 262 TeliaNet Sweden
1257 246 495 197 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 205 464 202 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 180 288 102 LANLINK autonomous system
3215 176 831 68 France Telecom Transpac
8708 176 111 165 Romania Data Systems S.A.
25186 174 156 115 France Telecom Transpac's Tra
786 172 1778 172 The JANET IP Service
6746 153 29 127 Dynamic Network Technologies,
5400 143 207 121 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 124 18 30 MobiFon S.A.
8866 116 13 7 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 354 80 56 Servicios Alestra S.A de C.V
6140 345 124 66 ImpSat
8151 271 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 219 90 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
14535 83 6 5 Techtel S.A.
6535 79 5 16 Chilesat Servicios Empresari
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
11311 72 7 19 Sinectis S.A.
4270 71 18 9 Red de Interconexion Universi
14420 69 4 28 ANDINATEL S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 108 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 30 18 6 RAYA Telecom - Egypt
9129 25 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
8524 23 2 8 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
15804 12 2 1 AS of The Way Out Internet So
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 939 840 SAVVIS Communications Corpora
18566 707 699 Covad Communications
4134 735 592 Data Communications Bureau
4323 735 530 Time Warner Communications, I
6197 709 435 BellSouth Network Solutions,
7843 505 386 Adelphia Corp.
701 1312 373 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 563 348 BellSouth Network Solutions,
27364 363 344 Armstrong Cable Services
22773 377 328 Cox Communications, Inc. Atla
9929 347 314 China Netcom Corp.
9583 441 311 Satyam Infoway Ltd.,
4755 367 309 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 934 300 Sprint
11172 354 298 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
6140 345 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
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
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
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
192.70.164.0/24 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
/13:123 /14:295 /15:513 /16:7759 /17:2024 /18:3600
/19:9394 /20:9906 /21:7245 /22:10296 /23:11633 /24:76835
/25:219 /26:260 /27:137 /28:32 /29:14 /30:67
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 714 939 SAVVIS Communications Corpora
18566 690 707 Covad Communications
7018 557 1442 AT&T
6197 538 709 BellSouth Network Solutions,
3356 509 893 Level 3 Communications, LLC
702 397 652 UUNET - Commercial IP service
6198 396 563 BellSouth Network Solutions,
701 369 1312 UUNET Technologies, Inc.
1239 366 934 Sprint
27364 351 363 Armstrong Cable Services
5668 332 380 Century Telephone
4766 311 490 Korea Internet Exchange for "
20115 294 552 Charter Communications
9583 286 441 Satyam Infoway Ltd.,
9929 277 347 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
690 247 283 Merit Network
3320 247 298 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
6517 237 263 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:814 13:1 15:5 16:2 17:3
20:8 24:733 32:101 38:67 40:54 44:3
55:1 56:3 57:15 61:381 62:481 63:1826
64:1955 65:1990 66:2602 67:318 68:526 69:541
70:64 80:490 81:296 82:174 83:63 128:144
129:186 130:82 131:132 132:18 133:1 134:181
135:17 136:186 137:92 138:157 139:43 140:164
141:124 142:117 143:60 144:88 145:42 146:301
147:77 148:418 149:119 150:93 151:71 152:165
153:62 154:1 155:118 156:61 157:59 158:144
159:146 160:54 161:55 162:377 163:75 164:166
165:161 166:100 167:220 168:224 169:106 170:284
171:8 192:5720 193:2740 194:2024 195:1369 196:545
198:3937 199:3270 200:3458 201:7 202:4603 203:5582
204:3055 205:2244 206:2274 207:2447 208:2243 209:2944
210:1421 211:554 212:989 213:1176 214:223 215:29
216:3471 217:917 218:168 219:110 220:228 221:28
222:40
End of report
