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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 05 Jul, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165753
Prefixes after maximum aggregation: 95979
Unique aggregates announced to Internet: 80483
Total ASes present in the Internet Routing Table: 19962
Origin-only ASes present in the Internet Routing Table: 17401
Origin ASes announcing only one prefix: 8181
Transit ASes present in the Internet Routing Table: 2561
Transit-only ASes present in the Internet Routing Table: 72
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: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1389975520
Equivalent to 82 /8s, 217 /16s and 87 /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: 78450
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34474
Total APNIC prefixes after maximum aggregation: 16130
Prefixes being announced from the APNIC address blocks: 32291
Unique aggregates announced from the APNIC address blocks: 16456
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: 352
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 188409216
Equivalent to 11 /8s, 58 /16s and 229 /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: 89020
Total ARIN prefixes after maximum aggregation: 54207
Prefixes being announced from the ARIN address blocks: 69553
Unique aggregates announced from the ARIN address blocks: 25635
ARIN Region origin ASes present in the Internet Routing Table: 10040
ARIN Region origin ASes announcing only one prefix: 3694
ARIN Region transit ASes present in the Internet Routing Table: 940
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 251652864
Equivalent to 14 /8s, 255 /16s and 235 /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: 31595
Total RIPE prefixes after maximum aggregation: 21748
Prefixes being announced from the RIPE address blocks: 28701
Unique aggregates announced from the RIPE address blocks: 19330
RIPE Region origin ASes present in the Internet Routing Table: 6805
RIPE Region origin ASes announcing only one prefix: 3587
RIPE Region transit ASes present in the Internet Routing Table: 1105
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 210742080
Equivalent to 12 /8s, 143 /16s and 171 /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: 9032
Total LACNIC prefixes after maximum aggregation: 3129
Prefixes being announced from the LACNIC address blocks: 7427
Unique aggregates announced from the LACNIC address blocks: 4343
LACNIC Region origin ASes present in the Internet Routing Table: 621
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 115
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20348704
Equivalent to 1 /8s, 54 /16s and 127 /24s
Percentage of available LACNIC address space announced: 30.3
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: 1608
Total AfriNIC prefixes after maximum aggregation: 765
Prefixes being announced from the AfriNIC address blocks: 1017
Unique aggregates announced from the AfriNIC address blocks: 779
AfriNIC Region origin ASes present in the Internet Routing Table: 130
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: 2312448
Equivalent to 0 /8s, 35 /16s and 73 /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 752 55 82 Sify Limited
4755 648 248 146 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 502 106 73 TPG Internet Pty Ltd
17676 437 6590 76 Softbank BB Corp.
9929 378 223 49 China Netcom Corp.
9443 374 77 76 Primus Telecommunications
10036 348 65 311 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
17557 334 24 166 Pakistan Telecom
9498 319 83 61 BHARTI BT INTERNET LTD.
7474 314 272 216 SingTel Optus Pty Ltd
4802 286 50 163 Wantree Development
4808 282 243 159 CNCGROUP IP network: China169
9837 279 80 183 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 1483 6430 966 AT&T WorldNet Services
174 1144 5808 1065 Cogent Communications
4323 1130 664 220 Time Warner Telecom
721 1109 21787 313 DLA Systems Automation Center
701 1012 8168 854 UUNET Technologies, Inc.
6197 929 518 439 BellSouth Network Solutions,
1239 885 2900 638 Sprint
2386 885 526 652 AT&T Data Communications Serv
18566 826 224 7 Covad Communications
20115 650 498 321 Charter Communications
209 627 3490 494 Qwest
3356 558 10791 427 Level 3 Communications, LLC
27364 555 44 18 Armstrong Cable Services
3602 541 123 104 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 489 114 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 1997 482 UUNET - Commercial IP service
3320 301 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 145 274 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 379 600 161 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 200 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 141 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 104 52 9 Mega Cable S.A. de C.V.
6503 101 146 72 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
23216 98 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
2905 75 266 67 The Internetworking Company o
6713 59 54 8 Itissalat Al-MAGHRIB
24835 57 34 6 RAYA Telecom - Egypt
9129 44 3 3 UUNET Kenya
12455 40 6 3 Jambonet Autonomous system
20928 37 16 2 Noor Advanced Technologies AS
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 1109 796 DLA Systems Automation Center
4134 922 729 CHINANET-BACKBONE
9583 752 670 Sify Limited
27364 555 537 Armstrong Cable Services
4755 648 502 Videsh Sanchar Nigam Ltd. Aut
6197 929 490 BellSouth Network Solutions,
7725 497 482 MediaOne
22773 497 474 Cox Communications, Inc.
5668 489 464 CenturyTel Internet Holdings,
3602 541 437 Sprint Canada, Inc.
7545 502 429 TPG Internet Pty Ltd
17676 437 361 Softbank BB Corp.
6467 384 350 E.Spire Communications, Inc.
20115 650 329 Charter Communications
9929 378 329 China Netcom Corp.
6140 395 318 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
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 /17:2611 /18:4494
/19:10435 /20:11350 /21:9370 /22:12798 /23:13788 /24:90290
/25:349 /26:306 /27:170 /28:44 /29:29 /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 757 929 BellSouth Network Solutions,
7018 694 1483 AT&T WorldNet Services
2386 600 885 AT&T Data Communications Serv
9583 571 752 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 402 489 CenturyTel Internet Holdings,
1239 370 885 Sprint
702 365 591 UUNET - Commercial IP service
6198 340 465 BellSouth Network Solutions,
10036 338 348 C&M Communication Co. Ltd.
7011 320 371 Citizens Utilities
9929 293 378 China Netcom Corp.
6517 290 312 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 12:1548 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 58:129 59:50
60:66 61:792 62:640 63:1877 64:2762 65:2088
66:2896 67:601 68:540 69:1088 70:125 71:11
72:255 80:594 81:572 82:428 83:282 84:209
85:272 86:39 87:8 128:172 129:170 130:89
131:296 132:37 133:1 134:144 135:43 136:134
137:74 138:166 139:59 140:265 141:104 142:149
143:134 144:198 145:32 146:284 147:107 148:282
149:171 150:107 151:65 152:108 153:88 154:4
155:143 156:77 157:100 158:160 159:167 160:77
161:68 162:211 163:96 164:209 165:181 166:153
167:242 168:432 169:140 170:319 171:8 172:1
190:1 192:5700 193:3185 194:2399 195:1572 196:663
198:3902 199:3292 200:4054 201:187 202:5779 203:6387
204:3779 205:2016 206:2445 207:2812 208:2045 209:3317
210:1725 211:861 212:1240 213:1318 214:266 215:31
216:3455 217:1104 218:207 219:139 220:392 221:233
222:117
End of report
