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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 03 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158880
Prefixes after maximum aggregation: 92580
Unique aggregates announced to Internet: 76299
Total ASes present in the Internet Routing Table: 19271
Origin-only ASes present in the Internet Routing Table: 16766
Origin ASes announcing only one prefix: 7822
Transit ASes present in the Internet Routing Table: 2505
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 32
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1394218880
Equivalent to 83 /8s, 26 /16s and 23 /24s
Percentage of available address space announced: 37.6
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 74085
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32276
Total APNIC prefixes after maximum aggregation: 15309
Prefixes being announced from the APNIC address blocks: 30228
Unique aggregates announced from the APNIC address blocks: 15305
APNIC Region origin ASes present in the Internet Routing Table: 2240
APNIC Region origin ASes announcing only one prefix: 654
APNIC Region transit ASes present in the Internet Routing Table: 339
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 180054400
Equivalent to 10 /8s, 187 /16s and 105 /24s
Percentage of available APNIC address space announced: 66.8
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: 86556
Total ARIN prefixes after maximum aggregation: 52730
Prefixes being announced from the ARIN address blocks: 67566
Unique aggregates announced from the ARIN address blocks: 24661
ARIN Region origin ASes present in the Internet Routing Table: 9789
ARIN Region origin ASes announcing only one prefix: 3548
ARIN Region transit ASes present in the Internet Routing Table: 919
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 243510272
Equivalent to 14 /8s, 131 /16s and 172 /24s
Percentage of available ARIN address space announced: 69.1
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, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30121
Total RIPE prefixes after maximum aggregation: 20845
Prefixes being announced from the RIPE address blocks: 27167
Unique aggregates announced from the RIPE address blocks: 18077
RIPE Region origin ASes present in the Internet Routing Table: 6475
RIPE Region origin ASes announcing only one prefix: 3408
RIPE Region transit ASes present in the Internet Routing Table: 1091
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 199892928
Equivalent to 11 /8s, 234 /16s and 31 /24s
Percentage of available RIPE address space announced: 70.1
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, 33792-35839
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: 8479
Total LACNIC prefixes after maximum aggregation: 2993
Prefixes being announced from the LACNIC address blocks: 6878
Unique aggregates announced from the LACNIC address blocks: 3996
LACNIC Region origin ASes present in the Internet Routing Table: 610
LACNIC Region origin ASes announcing only one prefix: 188
LACNIC Region transit ASes present in the Internet Routing Table: 110
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 18004992
Equivalent to 1 /8s, 18 /16s and 188 /24s
Percentage of available LACNIC address space announced: 53.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1411
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 906
Unique aggregates announced from the AfriNIC address blocks: 728
AfriNIC Region origin ASes present in the Internet Routing Table: 98
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2190336
Equivalent to 0 /8s, 33 /16s and 108 /24s
Percentage of available AfriNIC address space announced: 13.1
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 897 4843 180 CHINANET-BACKBONE
1221 783 1189 556 Telstra Pty Ltd
9583 693 51 42 Sify Limited
4766 586 3415 275 Korea Telecom (KIX)
4755 520 243 114 Videsh Sanchar Nigam Ltd. Aut
7545 469 86 69 TPG Internet Pty Ltd
17676 427 6460 72 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 342 1822 318 SINET Japan
17557 342 24 159 Pakistan Telecom
10036 306 28 279 C&M Communication Co. Ltd.
4808 302 248 163 CNCGROUP IP network: China169
7474 294 268 213 SingTel Optus Pty Ltd
4802 283 47 167 Wantree Development
9498 262 82 53 BHARTI BT INTERNET LTD.
703 253 279 208 UUNET - Commercial IP service
2764 253 238 202 AAPT Limited
9800 235 386 69 CHINA UNICOM
17974 235 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6562 971 AT&T WorldNet Services
721 1117 21763 314 DLA Systems Automation Center
4323 1088 663 222 Time Warner Telecom
701 1009 8282 859 UUNET Technologies, Inc.
174 992 5577 843 Cogent Communications
1239 909 2865 657 Sprint
6197 883 384 415 BellSouth Network Solutions,
2386 834 500 616 AT&T Data Communications Serv
18566 782 209 7 Covad Communications
209 646 3475 501 Qwest
20115 598 494 310 Charter Communications
3356 581 10851 430 Level 3 Communications, LLC
852 538 1095 397 Telus Advanced Communications
3561 538 2368 413 Savvis
6478 515 836 116 AT&T Worldnet Services
3602 507 121 93 Sprint Canada, Inc.
5668 477 115 25 CenturyTel Internet Holdings,
22773 476 1188 21 Cox Communications, Inc.
6198 469 541 199 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 2003 494 UUNET - Commercial IP service
3320 302 2993 236 Deutsche Telekom AG
3301 297 1117 287 TeliaNet Sweden
8220 277 468 271 COLT Telecommunications
680 254 2041 239 DFN-IP service G-WiN
3246 232 476 226 Song Networks
8708 227 251 206 Romania Data Systems S.A.
1257 201 712 177 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
8866 166 21 12 Bulgarian Telecommunication C
6746 162 47 142 Dynamic Network Technologies,
719 157 322 99 LANLINK autonomous system
3300 153 184 86 AUCS Communications Services
5400 144 281 127 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
9051 128 8 34 INCONET Autonomous System
2856 126 2304 113 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 350 527 146 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 214 99 52 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
19632 190 14 7 Metropolis Intercom S.A.
11664 151 19 23 Keytech SA
7303 148 67 28 Telecom Argentina Stet-France
6505 131 90 87 Global One Communicaoes Ltda
14117 119 8 4 Telefonica del Sur S.A.
22047 116 96 6 VTR PUNTO NET S.A.
6503 105 146 74 AVANTEL, S.A.
18822 103 6 15 TELEFONICA MANQUEHUE
11556 99 49 5 Cable-Wireless Panama
13999 99 52 9 Mega Cable S.A. de C.V.
19169 94 6 16 Telconet
23216 87 24 23 RAMtelecom Telecomunicaciones
11311 85 8 21 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 82 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 116 15 19 Internet Egypt Network
20928 91 16 2 Noor Advanced Technologies AS
2018 90 295 87 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
8452 57 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
12455 41 7 4 Jambonet Autonomous system
9129 40 3 2 UUNET Kenya
6713 37 54 9 Itissalat Al-MAGHRIB
5713 35 141 28 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
15475 20 84 4 Nile Online
10798 19 1 11 Standard Bank of South Africa
7460 18 3 5 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
15808 16 1 1 Communication Solutions Ltd i
21491 16 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
4323 1088 866 Time Warner Telecom
721 1117 803 DLA Systems Automation Center
18566 782 775 Covad Communications
4134 897 717 CHINANET-BACKBONE
9583 693 651 Sify Limited
6197 883 468 BellSouth Network Solutions,
22773 476 455 Cox Communications, Inc.
5668 477 452 CenturyTel Internet Holdings,
27364 465 447 Armstrong Cable Services
3602 507 414 Sprint Canada, Inc.
4755 520 406 Videsh Sanchar Nigam Ltd. Aut
7545 469 400 TPG Internet Pty Ltd
6478 515 399 AT&T Worldnet Services
6467 422 387 E.Spire Communications, Inc.
17676 427 355 Softbank BB Corp.
9929 358 313 China Netcom Corp.
6140 383 312 ImpSat
4766 586 311 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.163.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.166.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.168.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution
64832 PRIVATE 64.193.112.0/21 7911 Williams Communicati
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
35871 UNALLOCATED 66.7.178.0/23 6517 Yipes Communications
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom
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
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
172.32.0.0/24 7011 Citizens Utilities
172.122.28.0/24 210 Utah Education Network
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 /11:15 /12:66
/13:150 /14:307 /15:577 /16:8329 /17:2511 /18:4291
/19:10146 /20:10897 /21:8737 /22:12074 /23:13139 /24:86716
/25:279 /26:268 /27:133 /28:61 /29:23 /30:88
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 767 782 Covad Communications
6197 724 883 BellSouth Network Solutions,
7018 656 1481 AT&T WorldNet Services
2386 589 834 AT&T Data Communications Serv
9583 512 693 Sify Limited
4323 504 1088 Time Warner Telecom
27364 450 465 Armstrong Cable Services
4766 402 586 Korea Telecom (KIX)
5668 401 477 CenturyTel Internet Holdings,
1239 377 909 Sprint
702 368 604 UUNET - Commercial IP service
6198 338 469 BellSouth Network Solutions,
6467 313 422 E.Spire Communications, Inc.
10036 306 306 C&M Communication Co. Ltd.
6517 292 315 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 264 311 Carolina Online, Inc.
15270 250 269 PaeTec.net -a division of Pae
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1510 13:1 15:9 16:2
17:3 18:4 20:4 24:746 31:1 32:64
33:4 38:103 40:54 44:3 47:2 52:3
55:2 56:3 57:23 58:38 59:13 60:25
61:740 62:559 63:1871 64:2647 65:2070 66:2732
67:512 68:508 69:960 70:78 71:6 72:127
80:537 81:513 82:403 83:260 84:134 85:160
128:141 129:158 130:89 131:280 132:33 133:1
134:144 135:40 136:185 137:67 138:160 139:52
140:193 141:106 142:137 143:129 144:173 145:32
146:280 147:101 148:294 149:168 150:96 151:63
152:107 153:87 154:4 155:143 156:68 157:87
158:167 159:171 160:73 161:60 162:200 163:83
164:192 165:161 166:153 167:230 168:415 169:137
170:311 171:8 172:2 192:5661 193:3126 194:2313
195:1539 196:633 198:3929 199:3275 200:3989 201:64
202:5384 203:6125 204:3785 205:2068 206:2401 207:2710
208:2079 209:3248 210:1685 211:828 212:1192 213:1271
214:246 215:31 216:3672 217:1156 218:188 219:99
220:369 221:148 222:73
End of report
