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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 03 Jul, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165857
Prefixes after maximum aggregation: 95942
Unique aggregates announced to Internet: 80466
Total ASes present in the Internet Routing Table: 19943
Origin-only ASes present in the Internet Routing Table: 17379
Origin ASes announcing only one prefix: 8163
Transit ASes present in the Internet Routing Table: 2564
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: 30
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1389988832
Equivalent to 82 /8s, 217 /16s and 139 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 56.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 78557
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34472
Total APNIC prefixes after maximum aggregation: 16120
Prefixes being announced from the APNIC address blocks: 32287
Unique aggregates announced from the APNIC address blocks: 16474
APNIC Region origin ASes present in the Internet Routing Table: 2300
APNIC Region origin ASes announcing only one prefix: 673
APNIC Region transit ASes present in the Internet Routing Table: 349
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 188388736
Equivalent to 11 /8s, 58 /16s and 149 /24s
Percentage of available APNIC address space announced: 69.9
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: 89008
Total ARIN prefixes after maximum aggregation: 54198
Prefixes being announced from the ARIN address blocks: 69552
Unique aggregates announced from the ARIN address blocks: 25618
ARIN Region origin ASes present in the Internet Routing Table: 10037
ARIN Region origin ASes announcing only one prefix: 3692
ARIN Region transit ASes present in the Internet Routing Table: 941
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 251639552
Equivalent to 14 /8s, 255 /16s and 183 /24s
Percentage of available ARIN address space announced: 62.5
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: 31610
Total RIPE prefixes after maximum aggregation: 21714
Prefixes being announced from the RIPE address blocks: 28764
Unique aggregates announced from the RIPE address blocks: 19303
RIPE Region origin ASes present in the Internet Routing Table: 6787
RIPE Region origin ASes announcing only one prefix: 3570
RIPE Region transit ASes present in the Internet Routing Table: 1109
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 210658880
Equivalent to 12 /8s, 142 /16s and 102 /24s
Percentage of available RIPE address space announced: 62.8
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
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: 9068
Total LACNIC prefixes after maximum aggregation: 3137
Prefixes being announced from the LACNIC address blocks: 7425
Unique aggregates announced from the LACNIC address blocks: 4340
LACNIC Region origin ASes present in the Internet Routing Table: 622
LACNIC Region origin ASes announcing only one prefix: 190
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20410656
Equivalent to 1 /8s, 55 /16s and 113 /24s
Percentage of available LACNIC address space announced: 30.4
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: 1674
Total AfriNIC prefixes after maximum aggregation: 773
Prefixes being announced from the AfriNIC address blocks: 1023
Unique aggregates announced from the AfriNIC address blocks: 781
AfriNIC Region origin ASes present in the Internet Routing Table: 131
AfriNIC Region origin ASes announcing only one prefix: 38
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2306304
Equivalent to 0 /8s, 35 /16s and 49 /24s
Percentage of available AfriNIC address space announced: 6.9
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 922 5150 193 CHINANET-BACKBONE
1221 759 1454 535 Telstra Pty Ltd
9583 754 55 82 Sify Limited
4755 647 248 145 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 501 104 72 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9929 378 223 49 China Netcom Corp.
9443 374 77 76 Primus Telecommunications
10036 349 65 311 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
17557 327 24 169 Pakistan Telecom
9498 318 83 60 BHARTI BT INTERNET LTD.
7474 312 272 215 SingTel Optus Pty Ltd
4802 287 50 164 Wantree Development
4808 282 243 159 CNCGROUP IP network: China169
9837 280 80 184 Powertel Ltd
18302 277 109 156 SK Global co., Ltd
17974 267 65 14 PT TELEKOMUNIKASI INDONESIA
17488 258 15 18 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1480 6430 967 AT&T WorldNet Services
174 1145 5808 1066 Cogent Communications
4323 1130 664 220 Time Warner Telecom
721 1108 21787 313 DLA Systems Automation Center
701 1012 8168 854 UUNET Technologies, Inc.
6197 930 519 438 BellSouth Network Solutions,
1239 885 2900 638 Sprint
2386 884 526 651 AT&T Data Communications Serv
18566 826 224 7 Covad Communications
20115 650 498 321 Charter Communications
209 628 3490 494 Qwest
3356 558 10791 427 Level 3 Communications, LLC
27364 555 44 18 Armstrong Cable Services
3602 542 123 104 Sprint Canada, Inc.
852 540 1093 387 Telus Advanced Communications
3561 539 2385 423 Savvis
7725 497 60 15 MediaOne
22773 497 1188 23 Cox Communications, Inc.
5668 488 114 25 CenturyTel Internet Holdings,
6198 465 425 220 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 591 1999 482 UUNET - Commercial IP service
3320 305 3232 242 Deutsche Telekom AG
3301 299 1081 286 TeliaNet Sweden
8220 268 469 263 COLT Telecommunications
680 244 2041 240 DFN-IP service G-WiN
8708 231 254 213 Romania Data Systems S.A.
3246 225 488 220 Song Networks
1257 195 712 173 SWIPnet Swedish IP Network
5515 180 778 127 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
5400 172 286 145 BT Ignite European Backbone
6746 171 48 149 Dynamic Network Technologies,
3269 169 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 159 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 146 274 41 TTnet Autonomous System
25186 140 145 97 France Telecom Transpac's Tra
3352 138 1272 35 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 378 600 162 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 226 99 57 Servicios Alestra S.A de C.V
11664 201 19 23 Keytech SA
6147 197 110 21 Telefonica Del Peru
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 18 Telecom Argentina Stet-France
19632 140 14 5 Metropolis Intercom S.A.
22047 133 112 7 VTR PUNTO NET S.A.
6505 131 90 88 Global One Communicaoes Ltda
11556 131 64 3 Cable-Wireless Panama
19169 114 7 21 Telconet
18822 110 7 14 TELEFONICA MANQUEHUE
13999 106 52 9 Mega Cable S.A. de C.V.
6503 101 146 72 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
23216 97 24 23 RAMtelecom Telecomunicaciones
5639 96 12 9 Telecommunications Services o
22927 96 73 25 TELEFONICA DE ARGENTINA
21826 95 13 20 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 120 15 17 Internet Egypt Network
8452 94 28 6 TEDATA
2018 91 295 86 Tertiary Education Network
20928 82 16 2 Noor Advanced Technologies AS
2905 75 266 67 The Internetworking Company o
6713 59 54 8 Itissalat Al-MAGHRIB
24835 57 34 6 RAYA Telecom - Egypt
9129 45 3 3 UUNET Kenya
12455 40 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 36 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
21491 18 1 1 UTL On-line is RF broadband I
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 1130 910 Time Warner Telecom
18566 826 819 Covad Communications
721 1108 795 DLA Systems Automation Center
4134 922 729 CHINANET-BACKBONE
9583 754 672 Sify Limited
27364 555 537 Armstrong Cable Services
4755 647 502 Videsh Sanchar Nigam Ltd. Aut
6197 930 492 BellSouth Network Solutions,
7725 497 482 MediaOne
22773 497 474 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 542 438 Sprint Canada, Inc.
7545 501 429 TPG Internet Pty Ltd
17676 436 361 Softbank BB Corp.
6467 384 350 E.Spire Communications, Inc.
20115 650 329 Charter Communications
9929 378 329 China Netcom Corp.
6140 392 318 ImpSat
4766 591 312 Korea Telecom (KIX)
19262 419 306 Verizon Global Networks
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A
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
65142 PRIVATE 200.32.76.0/24 6140 ImpSat
65142 PRIVATE 200.32.77.0/24 6140 ImpSat
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.58.0/23 11664 Keytech SA
64512 PRIVATE 200.80.148.0/23 11664 Keytech SA
65201 PRIVATE 201.30.243.0/24 4230 Embratel
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
50.160.0.0/13 1221 Telstra Pty Ltd
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
192.169.0.0/23 3970 RGnet, Inc.
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 /9:3 /10:8 /11:15 /12:74
/13:161 /14:312 /15:595 /16:8429 /17:2610 /18:4492
/19:10440 /20:11350 /21:9373 /22:12794 /23:13780 /24:90401
/25:348 /26:306 /27:170 /28:44 /29:30 /30:72
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 810 826 Covad Communications
6197 758 930 BellSouth Network Solutions,
7018 694 1480 AT&T WorldNet Services
2386 599 884 AT&T Data Communications Serv
9583 573 754 Sify Limited
27364 546 555 Armstrong Cable Services
4323 538 1130 Time Warner Telecom
7725 468 497 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 401 488 CenturyTel Internet Holdings,
1239 370 885 Sprint
702 365 591 UUNET - Commercial IP service
6198 340 465 BellSouth Network Solutions,
10036 339 349 C&M Communication Co. Ltd.
7011 320 371 Citizens Utilities
9929 293 378 China Netcom Corp.
6517 291 313 Yipes Communications, Inc.
15270 290 315 PaeTec.net -a division of Pae
20115 281 650 Charter Communications
11456 274 312 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:21 9:1 12:1547 13:1 15:9
16:2 17:3 18:3 20:4 24:1177 30:2
32:69 33:4 38:135 40:53 44:3 47:2
52:4 55:2 56:3 57:24 58:122 59:51
60:66 61:791 62:635 63:1881 64:2764 65:2088
66:2896 67:602 68:540 69:1088 70:125 71:11
72:253 80:594 81:575 82:427 83:283 84:212
85:270 86:37 87:8 128:172 129:172 130:87
131:296 132:38 133:1 134:144 135:43 136:134
137:72 138:168 139:59 140:266 141:104 142:149
143:144 144:195 145:32 146:285 147:107 148:303
149:171 150:107 151:65 152:108 153:88 154:4
155:143 156:74 157:100 158:160 159:167 160:77
161:68 162:212 163:100 164:209 165:179 166:153
167:242 168:434 169:140 170:319 171:8 172:1
190:1 192:5702 193:3189 194:2412 195:1578 196:665
198:3904 199:3291 200:4050 201:187 202:5817 203:6367
204:3774 205:2012 206:2449 207:2811 208:2055 209:3317
210:1723 211:858 212:1235 213:1321 214:265 215:31
216:3452 217:1152 218:207 219:139 220:393 221:233
222:117
End of report
