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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157077
Prefixes after maximum aggregation: 91780
Unique aggregates announced to Internet: 75884
Total ASes present in the Internet Routing Table: 19061
Origin-only ASes present in the Internet Routing Table: 16583
Origin ASes announcing only one prefix: 7736
Transit ASes present in the Internet Routing Table: 2478
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1381142304
Equivalent to 82 /8s, 82 /16s and 143 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73226
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31338
Total APNIC prefixes after maximum aggregation: 15164
Prefixes being announced from the APNIC address blocks: 29375
Unique aggregates announced from the APNIC address blocks: 15287
APNIC Region origin ASes present in the Internet Routing Table: 2216
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 176341440
Equivalent to 10 /8s, 130 /16s and 193 /24s
Percentage of available APNIC address space announced: 65.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87618
Total ARIN prefixes after maximum aggregation: 52975
Prefixes being announced from the ARIN address blocks: 66930
Unique aggregates announced from the ARIN address blocks: 24444
ARIN Region origin ASes present in the Internet Routing Table: 9895
ARIN Region origin ASes announcing only one prefix: 3573
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 240010496
Equivalent to 14 /8s, 78 /16s and 69 /24s
Percentage of available ARIN address space announced: 71.5
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, 29696-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 29824
Total RIPE prefixes after maximum aggregation: 20523
Prefixes being announced from the RIPE address blocks: 26736
Unique aggregates announced from the RIPE address blocks: 17731
RIPE Region origin ASes present in the Internet Routing Table: 6359
RIPE Region origin ASes announcing only one prefix: 3361
RIPE Region transit ASes present in the Internet Routing Table: 1075
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193528912
Equivalent to 11 /8s, 137 /16s and 4 /24s
Percentage of available RIPE address space announced: 67.9
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: 6890
Total LACNIC prefixes after maximum aggregation: 2410
Prefixes being announced from the LACNIC address blocks: 6824
Unique aggregates announced from the LACNIC address blocks: 4031
LACNIC Region origin ASes present in the Internet Routing Table: 422
LACNIC Region origin ASes announcing only one prefix: 126
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17673216
Equivalent to 1 /8s, 13 /16s and 172 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1392
Total AfriNIC prefixes after maximum aggregation: 708
Prefixes being announced from the AfriNIC address blocks: 911
Unique aggregates announced from the AfriNIC address blocks: 716
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177280
Equivalent to 0 /8s, 33 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 887 4720 175 Data Communications Bureau
1221 790 1188 562 Telstra Pty Ltd
9583 606 49 20 Satyam Infoway Ltd.,
4766 585 3415 280 Korea Internet Exchange for "
4755 478 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 465 75 159 TPG Internet Pty Ltd
17676 403 6076 70 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 354 166 38 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 329 25 152 Pakistan Telecom
10036 299 27 272 C&M Communication Co. Ltd.
7474 286 283 208 Optus Communications Pty Ltd
703 272 355 214 UUNET
2764 255 237 204 connect.com.au pty ltd
4802 251 45 156 Wantree Development
9498 247 82 55 BHARTI BT INTERNET LTD.
4808 239 234 130 CHINANET core WAN North
9800 239 394 70 CHINA UNICOM
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6592 965 AT&T WorldNet Services
721 1146 21771 317 DLA Systems Automation Center
4323 1050 668 219 Time Warner Telecom
701 1030 8290 874 UUNET Technologies, Inc.
1239 924 2871 657 Sprint
6197 870 379 407 BellSouth Network Solutions,
2386 813 498 609 AT&T Data Communications Serv
18566 773 208 6 Covad Communications
174 766 5529 669 PSINet Inc.
209 649 3466 501 Qwest
3356 581 10864 432 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 561 2374 416 Cable & Wireless USA
852 535 1111 404 Telus Advanced Communications
3602 501 120 93 Sprint Canada, Inc.
6478 501 831 101 AT&T Worldnet Services
22773 477 1090 24 Cox Communications, Inc. Atla
6198 467 540 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 452 92 20 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2006 498 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 276 466 270 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 226 472 221 Song Networks
8708 222 120 200 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 208 708 173 SWIPnet Swedish IP Network
3215 206 1058 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
3300 164 185 84 AUCS Communications Services
6746 162 47 143 Dynamic Network Technologies,
719 159 322 101 LANLINK autonomous system
9121 158 230 27 TTnet Autonomous System
6830 142 529 28 UPC Distribution Services
25186 142 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 360 140 70 ImpSat
8151 337 505 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 99 54 Servicios Alestra S.A de C.V
6147 204 102 19 Telefonica Del Peru
11664 151 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 114 145 75 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 91 52 9 Mega Cable S.A. de C.V.
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
14420 86 6 41 ANDINATEL S.A.
5639 83 12 9 Telecommunications Services o
10481 79 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 87 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 53 34 6 RAYA Telecom - Egypt
11845 42 9 11 Data Pro Business Online
9129 37 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 30 7 8 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
8346 17 10 11 SONATEL-AS Autonomous System
15475 17 84 4 Nile Online
21491 16 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1050 831 Time Warner Telecom
721 1146 829 DLA Systems Automation Center
18566 773 767 Covad Communications
4134 887 712 Data Communications Bureau
9583 606 586 Satyam Infoway Ltd.,
6197 870 463 BellSouth Network Solutions,
22773 477 453 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 452 432 Century Telephone
3602 501 408 Sprint Canada, Inc.
6478 501 400 AT&T Worldnet Services
4755 478 377 Videsh Sanchar Nigam Ltd. Aut
17676 403 333 XTAGE CORPORATION
6467 359 327 E.Spire Communications, Inc.
9929 354 316 China Netcom Corp.
7545 465 306 TPG Internet Pty Ltd
4766 585 305 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
6140 360 290 ImpSat
20115 579 279 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
158.0.0.0/13 721 DLA Systems Automation Center
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
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 /10:8 /11:14 /12:62
/13:148 /14:306 /15:568 /16:8297 /17:2431 /18:4158
/19:10085 /20:10748 /21:8621 /22:11912 /23:13087 /24:85642
/25:418 /26:246 /27:107 /28:50 /29:25 /30:84
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 758 773 Covad Communications
6197 713 870 BellSouth Network Solutions,
7018 635 1469 AT&T WorldNet Services
2386 579 813 AT&T Data Communications Serv
4323 484 1050 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 430 606 Satyam Infoway Ltd.,
4766 402 585 Korea Internet Exchange for "
5668 382 452 Century Telephone
1239 372 924 Sprint
702 369 607 UUNET - Commercial IP service
6198 336 467 BellSouth Network Solutions,
10036 299 299 C&M Communication Co. Ltd.
6517 288 310 Yipes Communications, Inc.
9929 278 354 China Netcom Corp.
6467 271 359 E.Spire Communications, Inc.
20412 265 268 Black Hills FiberCom
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 248 1030 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1489 13:1 15:9 16:2
17:3 18:4 20:5 24:736 32:64 33:4
38:98 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:1 59:5 60:21 61:711
62:516 63:1866 64:2579 65:2056 66:2706 67:523
68:505 69:900 70:68 71:11 72:80 80:543
81:523 82:330 83:260 84:135 85:145 128:138
129:162 130:94 131:279 132:35 133:1 134:142
135:30 136:189 137:66 138:156 139:53 140:197
141:102 142:139 143:129 144:174 145:45 146:279
147:101 148:268 149:164 150:95 151:63 152:110
153:85 154:3 155:142 156:68 157:83 158:151
159:166 160:67 161:59 162:420 163:85 164:209
165:164 166:129 167:226 168:401 169:133 170:311
171:9 192:5664 193:3109 194:2286 195:1590 196:640
198:3888 199:3312 200:4003 201:54 202:5199 203:6036
204:3706 205:2027 206:2345 207:2728 208:2087 209:3171
210:1606 211:795 212:1168 213:1254 214:242 215:31
216:3658 217:1089 218:189 219:108 220:367 221:91
222:72
End of report
