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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 25 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158413
Prefixes after maximum aggregation: 92524
Unique aggregates announced to Internet: 76283
Total ASes present in the Internet Routing Table: 19233
Origin-only ASes present in the Internet Routing Table: 16728
Origin ASes announcing only one prefix: 7796
Transit ASes present in the Internet Routing Table: 2505
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 27
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1389736980
Equivalent to 82 /8s, 213 /16s and 180 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73883
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32098
Total APNIC prefixes after maximum aggregation: 15268
Prefixes being announced from the APNIC address blocks: 30016
Unique aggregates announced from the APNIC address blocks: 15275
APNIC Region origin ASes present in the Internet Routing Table: 2227
APNIC Region origin ASes announcing only one prefix: 646
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 179445632
Equivalent to 10 /8s, 178 /16s and 31 /24s
Percentage of available APNIC address space announced: 66.6
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: 86181
Total ARIN prefixes after maximum aggregation: 52756
Prefixes being announced from the ARIN address blocks: 67206
Unique aggregates announced from the ARIN address blocks: 24743
ARIN Region origin ASes present in the Internet Routing Table: 9783
ARIN Region origin ASes announcing only one prefix: 3548
ARIN Region transit ASes present in the Internet Routing Table: 928
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 242878464
Equivalent to 14 /8s, 122 /16s and 8 /24s
Percentage of available ARIN address space announced: 72.4
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, 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: 30246
Total RIPE prefixes after maximum aggregation: 20788
Prefixes being announced from the RIPE address blocks: 27213
Unique aggregates announced from the RIPE address blocks: 18030
RIPE Region origin ASes present in the Internet Routing Table: 6455
RIPE Region origin ASes announcing only one prefix: 3392
RIPE Region transit ASes present in the Internet Routing Table: 1092
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 196670912
Equivalent to 11 /8s, 184 /16s and 245 /24s
Percentage of available RIPE address space announced: 69.0
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: 8481
Total LACNIC prefixes after maximum aggregation: 3019
Prefixes being announced from the LACNIC address blocks: 6917
Unique aggregates announced from the LACNIC address blocks: 3992
LACNIC Region origin ASes present in the Internet Routing Table: 606
LACNIC Region origin ASes announcing only one prefix: 188
LACNIC Region transit ASes present in the Internet Routing Table: 109
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17824512
Equivalent to 1 /8s, 15 /16s and 251 /24s
Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1377
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 902
Unique aggregates announced from the AfriNIC address blocks: 721
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 22
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 893 4777 178 CHINANET-BACKBONE
1221 787 1191 560 Telstra Pty Ltd
9583 632 50 32 Sify Limited
4766 584 3415 275 Korea Telecom (KIX)
4755 500 242 105 Videsh Sanchar Nigam Ltd. Aut
7545 484 86 70 TPG Internet Pty Ltd
17676 424 6412 75 Softbank BB Corp.
9443 374 77 79 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 347 1823 321 SINET Japan
17557 337 24 155 Pakistan Telecom
10036 307 28 280 C&M Communication Co. Ltd.
4808 300 247 161 CNCGROUP IP network: China169
7474 291 268 211 SingTel Optus Pty Ltd
4802 283 47 167 Wantree Development
9498 259 82 53 BHARTI BT INTERNET LTD.
2764 255 238 203 AAPT Limited
703 249 279 207 UUNET - Commercial IP service
9800 235 386 69 CHINA UNICOM
17974 234 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6561 963 AT&T WorldNet Services
721 1120 21763 314 DLA Systems Automation Center
4323 1084 663 224 Time Warner Telecom
701 1016 8283 865 UUNET Technologies, Inc.
174 927 5569 787 Cogent Communications
1239 915 2868 661 Sprint
6197 880 383 412 BellSouth Network Solutions,
2386 834 501 613 AT&T Data Communications Serv
18566 780 208 6 Covad Communications
209 636 3475 499 Qwest
20115 591 491 308 Charter Communications
3356 582 10867 430 Level 3 Communications, LLC
852 542 1095 401 Telus Advanced Communications
3561 538 2370 414 Savvis
3602 504 121 93 Sprint Canada, Inc.
6478 498 833 115 AT&T Worldnet Services
22773 474 1186 20 Cox Communications, Inc.
6198 469 554 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
7132 437 8523 378 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 603 2004 493 UUNET - Commercial IP service
3320 296 2992 231 Deutsche Telekom AG
3301 289 1116 279 TeliaNet Sweden
8220 276 466 270 COLT Telecommunications
680 254 2041 239 DFN-IP service G-WiN
3246 231 475 225 Song Networks
8708 222 251 203 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
9121 205 239 45 TTnet Autonomous System
1257 201 712 177 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 171 19 18 Bulgarian Telecommunication C
3269 166 1456 72 TELECOM ITALIA
6746 162 47 142 Dynamic Network Technologies,
719 158 322 99 LANLINK autonomous system
3300 153 184 86 AUCS Communications Services
5400 146 281 127 BT Ignite European Backbone
6830 143 529 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
8151 340 489 142 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 191 14 7 Metropolis Intercom S.A.
11664 149 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 132 90 88 Global One Communicaoes Ltda
14117 119 8 4 Telefonica del Sur S.A.
22047 116 96 6 VTR PUNTO NET S.A.
6503 103 145 73 AVANTEL, S.A.
18822 102 6 14 TELEFONICA MANQUEHUE
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
19169 92 6 16 Telconet
6535 87 7 23 Chilesat Servicios Empresari
23216 87 24 24 RAMtelecom Telecomunicaciones
11311 86 8 22 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
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
20928 91 16 2 Noor Advanced Technologies AS
2018 90 295 87 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
24835 58 34 6 RAYA Telecom - Egypt
8452 55 20 5 TEDATA
12455 41 7 4 Jambonet Autonomous system
6713 35 54 9 Itissalat Al-MAGHRIB
9129 28 3 2 UUNET Kenya
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
7460 18 3 5 LIA Internet Access
8346 18 10 11 SONATEL-AS Autonomous System
12258 18 3 12 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 1084 860 Time Warner Telecom
721 1120 806 DLA Systems Automation Center
18566 780 774 Covad Communications
4134 893 715 CHINANET-BACKBONE
9583 632 600 Sify Limited
6197 880 468 BellSouth Network Solutions,
22773 474 454 Cox Communications, Inc.
27364 465 447 Armstrong Cable Services
7545 484 414 TPG Internet Pty Ltd
3602 504 411 Sprint Canada, Inc.
5668 427 403 CenturyTel Internet Holdings,
4755 500 395 Videsh Sanchar Nigam Ltd. Aut
6478 498 383 AT&T Worldnet Services
6467 406 373 E.Spire Communications, Inc.
17676 424 349 Softbank BB Corp.
6140 384 313 ImpSat
9929 358 313 China Netcom Corp.
4766 584 309 Korea Telecom (KIX)
9443 374 295 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 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
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
30998 UNALLOCATED 65.120.56.0/21 209 Qwest
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
30998 UNALLOCATED 196.207.0.0/20 209 Qwest
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
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 /12:64
/13:151 /14:305 /15:574 /16:8330 /17:2489 /18:4268
/19:10137 /20:10842 /21:8726 /22:12116 /23:13194 /24:86300
/25:265 /26:259 /27:128 /28:61 /29:26 /30:91
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 765 780 Covad Communications
6197 721 880 BellSouth Network Solutions,
7018 648 1474 AT&T WorldNet Services
2386 586 834 AT&T Data Communications Serv
4323 505 1084 Time Warner Telecom
9583 454 632 Sify Limited
27364 450 465 Armstrong Cable Services
4766 400 584 Korea Telecom (KIX)
1239 379 915 Sprint
702 366 603 UUNET - Commercial IP service
5668 355 427 CenturyTel Internet Holdings,
6198 337 469 BellSouth Network Solutions,
10036 307 307 C&M Communication Co. Ltd.
6467 303 406 E.Spire Communications, Inc.
6517 289 311 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
15270 249 268 PaeTec.net -a division of Pae
13609 247 292 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1509 13:1 15:9 16:2
17:3 18:4 20:4 24:740 32:64 33:4
38:102 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:6 59:10 60:25 61:746
62:542 63:1877 64:2624 65:2082 66:2731 67:512
68:504 69:947 70:76 71:4 72:120 80:536
81:512 82:349 83:254 84:128 85:170 128:139
129:156 130:90 131:281 132:32 133:1 134:144
135:40 136:185 137:66 138:159 139:49 140:193
141:104 142:139 143:130 144:173 145:45 146:281
147:101 148:293 149:167 150:97 151:63 152:109
153:85 154:3 155:143 156:63 157:87 158:167
159:168 160:72 161:60 162:199 163:85 164:215
165:160 166:127 167:228 168:411 169:135 170:306
171:8 172:1 192:5663 193:3112 194:2318 195:1610
196:626 198:3921 199:3259 200:4053 201:59 202:5345
203:6138 204:3736 205:2009 206:2356 207:2707 208:2051
209:3214 210:1638 211:828 212:1181 213:1272 214:239
215:31 216:3680 217:1133 218:190 219:101 220:375
221:121 222:72
End of report
