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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 18 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170404
Prefixes after maximum aggregation: 97223
Unique aggregates announced to Internet: 82311
Total ASes present in the Internet Routing Table: 20519
Origin-only ASes present in the Internet Routing Table: 17842
Origin ASes announcing only one prefix: 8441
Transit ASes present in the Internet Routing Table: 2677
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: 26
Prefixes from unregistered ASNs in the Routing Table: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1423960384
Equivalent to 84 /8s, 223 /16s and 233 /24s
Percentage of available address space announced: 38.4
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81083
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35287
Total APNIC prefixes after maximum aggregation: 15525
Prefixes being announced from the APNIC address blocks: 33169
Unique aggregates announced from the APNIC address blocks: 16419
APNIC Region origin ASes present in the Internet Routing Table: 2362
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 199346176
Equivalent to 11 /8s, 225 /16s and 200 /24s
Percentage of available APNIC address space announced: 74.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
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: 90884
Total ARIN prefixes after maximum aggregation: 55245
Prefixes being announced from the ARIN address blocks: 71019
Unique aggregates announced from the ARIN address blocks: 26183
ARIN Region origin ASes present in the Internet Routing Table: 10219
ARIN Region origin ASes announcing only one prefix: 3770
ARIN Region transit ASes present in the Internet Routing Table: 957
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 268125952
Equivalent to 15 /8s, 251 /16s and 71 /24s
Percentage of available ARIN address space announced: 66.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32943
Total RIPE prefixes after maximum aggregation: 22428
Prefixes being announced from the RIPE address blocks: 29993
Unique aggregates announced from the RIPE address blocks: 20203
RIPE Region origin ASes present in the Internet Routing Table: 7098
RIPE Region origin ASes announcing only one prefix: 3737
RIPE Region transit ASes present in the Internet Routing Table: 1185
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217834880
Equivalent to 12 /8s, 251 /16s and 229 /24s
Percentage of available RIPE address space announced: 64.9
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 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, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9528
Total LACNIC prefixes after maximum aggregation: 3214
Prefixes being announced from the LACNIC address blocks: 7880
Unique aggregates announced from the LACNIC address blocks: 4592
LACNIC Region origin ASes present in the Internet Routing Table: 637
LACNIC Region origin ASes announcing only one prefix: 198
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22027776
Equivalent to 1 /8s, 80 /16s and 30 /24s
Percentage of available LACNIC address space announced: 32.8
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1732
Total AfriNIC prefixes after maximum aggregation: 811
Prefixes being announced from the AfriNIC address blocks: 1054
Unique aggregates announced from the AfriNIC address blocks: 796
AfriNIC Region origin ASes present in the Internet Routing Table: 138
AfriNIC Region origin ASes announcing only one prefix: 41
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2661376
Equivalent to 0 /8s, 40 /16s and 156 /24s
Percentage of available AfriNIC address space announced: 7.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 966 5948 201 CHINANET-BACKBONE
9583 790 77 14 Sify Limited
1221 745 1328 514 Telstra Pty Ltd
4755 713 259 63 Videsh Sanchar Nigam Ltd. Aut
4766 608 3927 287 Korea Telecom (KIX)
7545 516 108 73 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 338 147 59 BHARTI BT INTERNET LTD.
2907 336 1773 313 SINET Japan
9929 335 224 46 China Netcom Corp.
17557 330 23 157 Pakistan Telecom
17488 320 19 8 Hathway IP Over Cable Interne
7474 313 257 216 SingTel Optus Pty Ltd
4802 304 63 152 Wantree Development
18302 293 109 154 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 263 206 UUNET - Commercial IP service
9800 251 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6358 977 AT&T WorldNet Services
4323 1176 705 229 Time Warner Telecom
721 1082 21906 311 DLA Systems Automation Center
174 1081 5851 1013 Cogent Communications
701 997 8120 840 UUNET Technologies, Inc.
6197 941 389 478 BellSouth Network Solutions,
2386 913 514 675 AT&T Data Communications Serv
1239 866 2851 610 Sprint
18566 848 225 23 Covad Communications
20115 646 507 329 Charter Communications
209 628 3457 494 Qwest
3356 576 10661 445 Level 3 Communications, LLC
3602 557 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 541 2409 421 Savvis
22773 529 1352 28 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 463 4950 396 SBC Internet Services
19262 453 1374 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 291 3230 241 Deutsche Telekom AG
8220 266 474 261 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 236 262 216 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 201 292 40 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 167 37 9 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 155 185 91 AUCS Communications Services
25186 142 145 100 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
3215 136 1165 80 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 168 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
6147 191 118 21 Telefonica Del Peru
11664 191 20 24 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 130 64 10 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 28 Telconet
13999 116 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 96 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 106 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 86 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 59 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 4 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1176 947 Time Warner Telecom
18566 848 825 Covad Communications
9583 790 776 Sify Limited
721 1082 771 DLA Systems Automation Center
4134 966 765 CHINANET-BACKBONE
4755 713 650 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 529 501 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 941 463 BellSouth Network Solutions,
3602 557 447 Sprint Canada, Inc.
7545 516 443 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 404 353 E.Spire Communications, Inc.
19262 453 332 Verizon Global Networks
11492 335 327 Cable One
4766 608 321 Korea Telecom (KIX)
20115 646 317 Charter Communications
17488 320 312 Hathway IP Over Cable Interne
15270 337 310 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8697 Jordan Telecommunica
65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65500 PRIVATE 202.93.233.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.234.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.235.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.236.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.237.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.238.0/24 4795 INDOSATNET-ASN
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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 /8:17 /9:5 /10:8 /11:17 /12:80
/13:175 /14:323 /15:627 /16:8529 /17:2742 /18:4676
/19:10747 /20:11806 /21:9852 /22:13212 /23:14104 /24:92568
/25:325 /26:270 /27:169 /28:45 /29:14 /30:60
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 833 848 Covad Communications
6197 770 941 BellSouth Network Solutions,
7018 708 1496 AT&T WorldNet Services
2386 624 913 AT&T Data Communications Serv
9583 613 790 Sify Limited
4323 561 1176 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 425 608 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
1239 369 866 Sprint
7011 368 423 Citizens Utilities
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 327 335 Cable One
6517 310 336 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 286 997 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 270 646 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 12:1591 13:1 15:10 16:2
17:3 18:3 20:26 24:1071 30:3 32:61
38:151 40:55 44:4 47:2 52:4 55:1
56:3 57:23 58:156 59:68 60:122 61:729
62:760 63:1887 64:2873 65:2073 66:2906 67:613
68:614 69:1226 70:186 71:17 72:381 80:603
81:554 82:468 83:307 84:245 85:312 86:108
87:16 125:1 128:152 129:167 130:94 131:293
132:36 133:1 134:145 135:43 136:150 137:66
138:164 139:61 140:425 141:105 142:145 143:140
144:217 145:34 146:295 147:118 148:301 149:182
150:107 151:71 152:113 153:93 154:5 155:146
156:80 157:115 158:164 159:170 160:85 161:70
162:232 163:135 164:183 165:187 166:155 167:250
168:437 169:142 170:318 171:8 190:1 192:5706
193:3296 194:2407 195:1553 196:673 198:3884 199:3299
200:4182 201:327 202:6118 203:6393 204:3794 205:2066
206:2439 207:2802 208:2022 209:3337 210:1656 211:794
212:1214 213:1357 214:297 215:36 216:3665 217:1137
218:220 219:138 220:485 221:278 222:126
End of report
