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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 16 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171854
Prefixes after maximum aggregation: 97892
Unique aggregates announced to Internet: 83159
Total ASes present in the Internet Routing Table: 20675
Origin-only ASes present in the Internet Routing Table: 17972
Origin ASes announcing only one prefix: 8516
Transit ASes present in the Internet Routing Table: 2703
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 30
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1431815488
Equivalent to 85 /8s, 87 /16s and 197 /24s
Percentage of available address space announced: 38.6
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81898
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35736
Total APNIC prefixes after maximum aggregation: 15714
Prefixes being announced from the APNIC address blocks: 33521
Unique aggregates announced from the APNIC address blocks: 16663
APNIC Region origin ASes present in the Internet Routing Table: 2387
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 202752128
Equivalent to 12 /8s, 21 /16s and 192 /24s
Percentage of available APNIC address space announced: 75.2
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: 91295
Total ARIN prefixes after maximum aggregation: 55452
Prefixes being announced from the ARIN address blocks: 71325
Unique aggregates announced from the ARIN address blocks: 26431
ARIN Region origin ASes present in the Internet Routing Table: 10244
ARIN Region origin ASes announcing only one prefix: 3774
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 272083712
Equivalent to 16 /8s, 55 /16s and 171 /24s
Percentage of available ARIN address space announced: 67.6
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: 33364
Total RIPE prefixes after maximum aggregation: 22680
Prefixes being announced from the RIPE address blocks: 30388
Unique aggregates announced from the RIPE address blocks: 20411
RIPE Region origin ASes present in the Internet Routing Table: 7196
RIPE Region origin ASes announcing only one prefix: 3796
RIPE Region transit ASes present in the Internet Routing Table: 1197
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 220075008
Equivalent to 13 /8s, 30 /16s and 20 /24s
Percentage of available RIPE address space announced: 65.6
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: 9662
Total LACNIC prefixes after maximum aggregation: 3227
Prefixes being announced from the LACNIC address blocks: 7990
Unique aggregates announced from the LACNIC address blocks: 4705
LACNIC Region origin ASes present in the Internet Routing Table: 643
LACNIC Region origin ASes announcing only one prefix: 206
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22285824
Equivalent to 1 /8s, 84 /16s and 14 /24s
Percentage of available LACNIC address space announced: 33.2
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: 1763
Total AfriNIC prefixes after maximum aggregation: 819
Prefixes being announced from the AfriNIC address blocks: 1072
Unique aggregates announced from the AfriNIC address blocks: 797
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 44
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: 2839552
Equivalent to 0 /8s, 43 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1005 6236 210 CHINANET-BACKBONE
9583 807 77 12 Sify Limited
1221 750 1326 513 Telstra Pty Ltd
4755 719 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 291 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 382 211 57 BHARTI BT INTERNET LTD.
2907 337 1763 314 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 332 224 46 China Netcom Corp.
7474 330 258 227 SingTel Optus Pty Ltd
17557 330 39 162 Pakistan Telecom
4802 325 71 155 Wantree Development
18302 291 109 170 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 270 65 14 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
1659 262 956 35 Tiawan Academic Network (TANe
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1523 6365 994 AT&T WorldNet Services
4323 1191 705 231 Time Warner Telecom
721 1076 21938 309 DLA Systems Automation Center
174 1062 5849 996 Cogent Communications
701 999 8121 837 UUNET Technologies, Inc.
6197 946 399 494 BellSouth Network Solutions,
2386 932 498 698 AT&T Data Communications Serv
18566 860 240 7 Covad Communications
1239 852 2851 598 Sprint
209 638 3556 504 Qwest
20115 628 512 332 Charter Communications
3602 561 131 109 Sprint Canada, Inc.
3561 548 2410 420 Savvis
22773 539 1348 27 Cox Communications, Inc.
3356 534 10635 410 Level 3 Communications, LLC
5668 486 147 24 CenturyTel Internet Holdings,
19262 486 1442 123 Verizon Global Networks
6198 479 448 223 BellSouth Network Solutions,
7132 468 5059 399 SBC Internet Services
852 439 1092 383 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 605 1976 478 UUNET - Commercial IP service
3301 304 1081 290 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 243 2040 239 DFN-IP service G-WiN
8708 240 274 225 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 193 712 171 SWIPnet Swedish IP Network
6746 193 50 167 Dynamic Network Technologies,
5515 181 777 127 Sonera Solution Autonomous Sy
3269 177 1637 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 170 289 142 BT Ignite European Backbone
8866 159 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 157 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 142 1229 81 France Telecom Transpac
1273 139 177 97 Cable & Wireless Deutschland
24863 139 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 403 650 171 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 279 86 64 Servicios Alestra S.A de C.V
11664 195 22 13 Keytech SA
19632 195 14 5 Metropolis Intercom S.A.
6147 191 118 21 Telefonica Del Peru
22047 169 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 146 69 17 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 119 52 9 Mega Cable S.A. de C.V.
6503 113 148 73 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 108 14 17 INTERCABLE
5639 105 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 88 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 116 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
5713 38 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 3 19 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
15804 18 2 1 AS of The Way Out Internet So
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1191 960 Time Warner Telecom
18566 860 853 Covad Communications
4134 1005 795 CHINANET-BACKBONE
9583 807 795 Sify Limited
721 1076 767 DLA Systems Automation Center
4755 719 653 Videsh Sanchar Nigam Ltd. Aut
22773 539 512 Cox Communications, Inc.
5668 486 462 CenturyTel Internet Holdings,
6197 946 452 BellSouth Network Solutions,
3602 561 452 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 486 363 Verizon Global Networks
6467 401 353 E.Spire Communications, Inc.
11492 346 335 Cable One
812 357 331 Rogers WAVE
4766 619 328 Korea Telecom (KIX)
17488 336 327 Hathway IP Over Cable Interne
9498 382 325 BHARTI BT INTERNET LTD.
15270 342 317 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65500 PRIVATE 64.146.64.0/24 19029 New Edge Networks
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65535 PRIVATE 70.128.144.0/21 7132 SBC Internet Service
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
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
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
65500 PRIVATE 216.217.188.0/24 19029 New Edge Networks
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
/13:181 /14:330 /15:643 /16:8549 /17:2840 /18:4755
/19:10856 /20:11919 /21:9963 /22:13252 /23:14240 /24:93301
/25:322 /26:282 /27:178 /28:33 /29:12 /30:37
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 844 860 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 746 1523 AT&T WorldNet Services
2386 645 932 AT&T Data Communications Serv
9583 630 807 Sify Limited
4323 567 1191 Time Warner Telecom
4766 427 619 Korea Telecom (KIX)
5668 390 486 CenturyTel Internet Holdings,
702 384 605 UUNET - Commercial IP service
7011 367 427 Citizens Utilities
1239 364 852 Sprint
19916 363 369 OLM LLC
6198 349 479 BellSouth Network Solutions,
11492 338 346 Cable One
6517 321 346 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
701 284 999 UUNET Technologies, Inc.
13609 279 320 Choice One Communications Inc
18302 276 291 SK Global co., Ltd
22773 275 539 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:25 12:1603 13:1 15:11 16:3
17:3 18:3 20:31 24:560 30:3 32:67
38:161 40:54 44:3 52:4 55:1 56:3
57:36 58:95 59:76 60:138 61:766 62:780
63:1887 64:2911 65:2078 66:2973 67:637 68:660
69:1297 70:210 71:28 72:415 80:651 81:576
82:497 83:296 84:285 85:346 86:131 87:60
125:17 128:145 129:169 130:96 131:296 132:36
133:1 134:146 135:43 136:158 137:67 138:166
139:65 140:499 141:141 142:147 143:142 144:219
145:34 146:301 147:131 148:306 149:185 150:107
151:69 152:113 153:93 154:5 155:140 156:79
157:113 158:164 159:168 160:87 161:76 162:236
163:148 164:188 165:191 166:151 167:258 168:445
169:143 170:305 171:10 190:1 192:5710 193:3277
194:2430 195:1562 196:659 198:3886 199:3237 200:4243
201:357 202:6137 203:6478 204:3826 205:2049 206:2447
207:2849 208:2021 209:3407 210:1692 211:823 212:1209
213:1355 214:310 215:39 216:3702 217:1146 218:225
219:130 220:510 221:290 222:128
End of report
