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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 172555
Prefixes after maximum aggregation: 98084
Unique aggregates announced to Internet: 83767
Total ASes present in the Internet Routing Table: 20722
Origin-only ASes present in the Internet Routing Table: 18012
Origin ASes announcing only one prefix: 8544
Transit ASes present in the Internet Routing Table: 2710
Transit-only ASes present in the Internet Routing Table: 77
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: 11
Number of addresses announced to Internet: 1434826832
Equivalent to 85 /8s, 133 /16s and 184 /24s
Percentage of available address space announced: 38.7
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82363
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35864
Total APNIC prefixes after maximum aggregation: 15736
Prefixes being announced from the APNIC address blocks: 33656
Unique aggregates announced from the APNIC address blocks: 16691
APNIC Region origin ASes present in the Internet Routing Table: 2391
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 361
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 203781776
Equivalent to 12 /8s, 37 /16s and 118 /24s
Percentage of available APNIC address space announced: 75.6
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: 91698
Total ARIN prefixes after maximum aggregation: 55547
Prefixes being announced from the ARIN address blocks: 71721
Unique aggregates announced from the ARIN address blocks: 26949
ARIN Region origin ASes present in the Internet Routing Table: 10275
ARIN Region origin ASes announcing only one prefix: 3801
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 272708608
Equivalent to 16 /8s, 65 /16s and 52 /24s
Percentage of available ARIN address space announced: 67.7
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: 33507
Total RIPE prefixes after maximum aggregation: 22744
Prefixes being announced from the RIPE address blocks: 30518
Unique aggregates announced from the RIPE address blocks: 20425
RIPE Region origin ASes present in the Internet Routing Table: 7207
RIPE Region origin ASes announcing only one prefix: 3798
RIPE Region transit ASes present in the Internet Routing Table: 1198
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 220937216
Equivalent to 13 /8s, 43 /16s and 60 /24s
Percentage of available RIPE address space announced: 65.8
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: 9691
Total LACNIC prefixes after maximum aggregation: 3238
Prefixes being announced from the LACNIC address blocks: 8013
Unique aggregates announced from the LACNIC address blocks: 4714
LACNIC Region origin ASes present in the Internet Routing Table: 643
LACNIC Region origin ASes announcing only one prefix: 205
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22182656
Equivalent to 1 /8s, 82 /16s and 123 /24s
Percentage of available LACNIC address space announced: 33.1
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: 1764
Total AfriNIC prefixes after maximum aggregation: 819
Prefixes being announced from the AfriNIC address blocks: 1082
Unique aggregates announced from the AfriNIC address blocks: 799
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: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2839040
Equivalent to 0 /8s, 43 /16s and 82 /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 6228 210 CHINANET-BACKBONE
9583 809 77 12 Sify Limited
1221 751 1327 512 Telstra Pty Ltd
4755 724 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 290 Korea Telecom (KIX)
7545 518 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 384 211 58 BHARTI BT INTERNET LTD.
2907 338 1763 315 SINET Japan
17488 334 20 9 Hathway IP Over Cable Interne
9929 332 224 46 China Netcom Corp.
7474 330 258 227 SingTel Optus Pty Ltd
17557 330 24 162 Pakistan Telecom
4802 325 72 154 Wantree Development
18302 293 109 172 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 269 65 15 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
703 254 259 210 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1521 6358 993 AT&T WorldNet Services
4323 1193 705 231 Time Warner Telecom
721 1074 21938 309 DLA Systems Automation Center
174 1054 5848 991 Cogent Communications
701 1006 8138 843 UUNET Technologies, Inc.
2386 948 515 703 AT&T Data Communications Serv
6197 946 400 484 BellSouth Network Solutions,
18566 863 240 7 Covad Communications
1239 858 2852 605 Sprint
209 641 3572 507 Qwest
20115 633 515 336 Charter Communications
3602 559 131 109 Sprint Canada, Inc.
19916 541 48 71 OLM LLC
22773 541 1348 27 Cox Communications, Inc.
3356 535 10639 411 Level 3 Communications, LLC
19262 488 1452 126 Verizon Global Networks
3561 487 2409 402 Savvis
5668 484 147 23 CenturyTel Internet Holdings,
6198 480 448 224 BellSouth Network Solutions,
7132 470 5061 401 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 1976 477 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 239 274 224 Romania Data Systems S.A.
3246 225 474 218 Song Networks
6746 196 51 168 Dynamic Network Technologies,
1257 193 712 171 SWIPnet Swedish IP Network
3269 182 1734 70 TELECOM ITALIA
5515 182 841 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 172 317 142 BT Ignite European Backbone
6830 160 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 157 169 91 AUCS Communications Services
25186 151 227 106 France Telecom Transpac's Tra
24863 143 37 6 LINKdotNET AS number
3215 142 1229 81 France Telecom Transpac
1273 136 176 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 401 641 171 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 280 86 65 Servicios Alestra S.A de C.V
11664 197 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
6147 189 118 21 Telefonica Del Peru
14117 169 10 5 Telefonica del Sur S.A.
22047 169 128 7 VTR PUNTO NET S.A.
7303 149 69 15 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 117 52 9 Mega Cable S.A. de C.V.
6503 112 148 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 269 708 227 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 117 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 59 34 7 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 3 20 AS Number for Telecom Algeria
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 20 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
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 1193 962 Time Warner Telecom
18566 863 856 Covad Communications
9583 809 797 Sify Limited
4134 1005 795 CHINANET-BACKBONE
721 1074 765 DLA Systems Automation Center
4755 724 657 Videsh Sanchar Nigam Ltd. Aut
22773 541 514 Cox Communications, Inc.
19916 541 470 OLM LLC
6197 946 462 BellSouth Network Solutions,
5668 484 461 CenturyTel Internet Holdings,
3602 559 450 Sprint Canada, Inc.
7545 518 447 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 488 362 Verizon Global Networks
6467 408 360 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
11492 346 335 Cable One
4766 619 329 Korea Telecom (KIX)
9498 384 326 BHARTI BT INTERNET LTD.
17488 334 325 Hathway IP Over Cable Interne
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
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
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
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
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
192.172.0.0/19 721 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 /11:18 /12:80
/13:182 /14:335 /15:653 /16:8590 /17:2856 /18:4778
/19:10873 /20:11927 /21:9983 /22:13236 /23:14246 /24:93846
/25:336 /26:283 /27:183 /28:37 /29:12 /30:38
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 847 863 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 742 1521 AT&T WorldNet Services
2386 660 948 AT&T Data Communications Serv
9583 632 809 Sify Limited
4323 569 1193 Time Warner Telecom
19916 532 541 OLM LLC
4766 427 619 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
702 384 604 UUNET - Commercial IP service
7011 383 443 Citizens Utilities
1239 367 858 Sprint
6198 350 480 BellSouth Network Solutions,
11492 338 346 Cable One
6517 321 347 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
701 286 1006 UUNET Technologies, Inc.
13609 286 327 Choice One Communications Inc
18302 278 293 SK Global co., Ltd
22773 276 541 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:25 12:1607 13:1 15:11 16:3
17:3 18:3 20:31 24:565 30:2 32:83
38:163 40:54 44:3 47:2 52:4 55:1
56:3 57:35 58:96 59:79 60:146 61:786
62:794 63:1894 64:2959 65:2103 66:2991 67:645
68:661 69:1295 70:215 71:32 72:409 80:656
81:570 82:504 83:307 84:288 85:360 86:138
87:64 125:14 128:156 129:167 130:97 131:297
132:36 133:1 134:148 135:40 136:158 137:68
138:166 139:66 140:464 141:141 142:148 143:143
144:218 145:34 146:301 147:131 148:276 149:187
150:107 151:69 152:112 153:93 154:6 155:141
156:79 157:114 158:161 159:174 160:87 161:76
162:237 163:147 164:191 165:189 166:159 167:255
168:446 169:143 170:303 171:11 190:1 192:5722
193:3318 194:2429 195:1564 196:665 198:3905 199:3245
200:4252 201:380 202:6186 203:6480 204:3832 205:2065
206:2448 207:2847 208:2022 209:3430 210:1697 211:825
212:1207 213:1364 214:312 215:39 216:3834 217:1141
218:220 219:134 220:509 221:291 222:131
End of report
