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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 11 Jul, 2005
Analysis Summary
----------------
BGP routing table entries examined: 166467
Prefixes after maximum aggregation: 96155
Unique aggregates announced to Internet: 80742
Total ASes present in the Internet Routing Table: 20003
Origin-only ASes present in the Internet Routing Table: 17428
Origin ASes announcing only one prefix: 8182
Transit ASes present in the Internet Routing Table: 2575
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: 26
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: 1391986272
Equivalent to 82 /8s, 248 /16s and 6 /24s
Percentage of available address space announced: 37.6
Percentage of allocated address space announced: 56.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 78966
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34789
Total APNIC prefixes after maximum aggregation: 16159
Prefixes being announced from the APNIC address blocks: 32682
Unique aggregates announced from the APNIC address blocks: 16580
APNIC Region origin ASes present in the Internet Routing Table: 2313
APNIC Region origin ASes announcing only one prefix: 679
APNIC Region transit ASes present in the Internet Routing Table: 355
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 189646720
Equivalent to 11 /8s, 77 /16s and 199 /24s
Percentage of available APNIC address space announced: 70.4
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: 89088
Total ARIN prefixes after maximum aggregation: 54283
Prefixes being announced from the ARIN address blocks: 69590
Unique aggregates announced from the ARIN address blocks: 25714
ARIN Region origin ASes present in the Internet Routing Table: 10047
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: 252026880
Equivalent to 15 /8s, 5 /16s and 160 /24s
Percentage of available ARIN address space announced: 62.6
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: 31867
Total RIPE prefixes after maximum aggregation: 21804
Prefixes being announced from the RIPE address blocks: 28893
Unique aggregates announced from the RIPE address blocks: 19361
RIPE Region origin ASes present in the Internet Routing Table: 6820
RIPE Region origin ASes announcing only one prefix: 3586
RIPE Region transit ASes present in the Internet Routing Table: 1112
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 211306176
Equivalent to 12 /8s, 152 /16s and 70 /24s
Percentage of available RIPE address space announced: 63.0
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: 9071
Total LACNIC prefixes after maximum aggregation: 3137
Prefixes being announced from the LACNIC address blocks: 7442
Unique aggregates announced from the LACNIC address blocks: 4339
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 188
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20407328
Equivalent to 1 /8s, 55 /16s and 100 /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: 1627
Total AfriNIC prefixes after maximum aggregation: 772
Prefixes being announced from the AfriNIC address blocks: 1020
Unique aggregates announced from the AfriNIC address blocks: 785
AfriNIC Region origin ASes present in the Internet Routing Table: 131
AfriNIC Region origin ASes announcing only one prefix: 37
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 2315264
Equivalent to 0 /8s, 35 /16s and 84 /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 925 5438 196 CHINANET-BACKBONE
1221 759 1454 535 Telstra Pty Ltd
9583 757 55 84 Sify Limited
4755 653 248 145 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 504 106 73 TPG Internet Pty Ltd
17676 437 6590 76 Softbank BB Corp.
9443 372 77 75 Primus Telecommunications
9929 368 223 49 China Netcom Corp.
10036 349 65 309 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
17557 329 23 155 Pakistan Telecom
9498 321 83 60 BHARTI BT INTERNET LTD.
7474 310 272 215 SingTel Optus Pty Ltd
4802 286 50 163 Wantree Development
4808 285 243 161 CNCGROUP IP network: China169
9837 277 80 181 Powertel Ltd
18302 276 109 153 SK Global co., Ltd
17974 265 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 1495 6401 974 AT&T WorldNet Services
174 1142 5808 1065 Cogent Communications
4323 1132 664 220 Time Warner Telecom
721 1089 21787 310 DLA Systems Automation Center
701 1010 8168 852 UUNET Technologies, Inc.
6197 933 519 434 BellSouth Network Solutions,
2386 893 529 660 AT&T Data Communications Serv
1239 885 2900 636 Sprint
18566 826 224 7 Covad Communications
20115 650 498 321 Charter Communications
209 631 3507 498 Qwest
3356 561 10791 430 Level 3 Communications, LLC
27364 555 44 18 Armstrong Cable Services
3602 543 123 104 Sprint Canada, Inc.
852 542 1094 388 Telus Advanced Communications
3561 537 2384 421 Savvis
7725 499 64 17 MediaOne
22773 499 1188 23 Cox Communications, Inc.
5668 488 114 25 CenturyTel Internet Holdings,
6198 462 394 221 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 303 3232 242 Deutsche Telekom AG
3301 300 1081 286 TeliaNet Sweden
8220 268 473 263 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
8708 229 253 211 Romania Data Systems S.A.
3246 228 467 221 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 173 286 146 BT Ignite European Backbone
6746 172 49 150 Dynamic Network Technologies,
3269 169 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 160 21 11 Bulgarian Telecommunication C
3300 155 184 88 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 144 270 32 TTnet Autonomous System
25186 141 145 98 France Telecom Transpac's Tra
3352 139 1272 35 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 374 599 157 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 229 99 56 Servicios Alestra S.A de C.V
11664 207 19 23 Keytech SA
6147 191 110 21 Telefonica Del Peru
14117 152 9 5 Telefonica del Sur S.A.
7303 149 69 17 Telecom Argentina Stet-France
19632 141 14 5 Metropolis Intercom S.A.
22047 132 112 7 VTR PUNTO NET S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 89 87 Global One Communicaoes Ltda
19169 115 7 22 Telconet
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
6503 108 147 71 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 265 637 223 The Internet Solution
5536 121 15 16 Internet Egypt Network
8452 94 28 6 TEDATA
2018 92 295 86 Tertiary Education Network
2905 75 266 67 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
20928 46 16 2 Noor Advanced Technologies AS
9129 43 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
15475 37 84 4 Nile Online
5713 36 142 29 Telkom SA Ltd
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 1132 912 Time Warner Telecom
18566 826 819 Covad Communications
721 1089 779 DLA Systems Automation Center
4134 925 729 CHINANET-BACKBONE
9583 757 673 Sify Limited
27364 555 537 Armstrong Cable Services
4755 653 508 Videsh Sanchar Nigam Ltd. Aut
6197 933 499 BellSouth Network Solutions,
7725 499 482 MediaOne
22773 499 476 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 543 439 Sprint Canada, Inc.
7545 504 431 TPG Internet Pty Ltd
17676 437 361 Softbank BB Corp.
6467 380 346 E.Spire Communications, Inc.
20115 650 329 Charter Communications
6140 396 320 ImpSat
9929 368 319 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
19262 425 310 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
65000 PRIVATE 205.174.175.0/24 31760 e-Novations ComNet I
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 /12:75
/13:161 /14:313 /15:598 /16:8430 /17:2609 /18:4506
/19:10433 /20:11378 /21:9447 /22:12915 /23:13868 /24:90707
/25:334 /26:294 /27:175 /28:44 /29:32 /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 761 933 BellSouth Network Solutions,
7018 700 1495 AT&T WorldNet Services
2386 608 893 AT&T Data Communications Serv
9583 576 757 Sify Limited
27364 546 555 Armstrong Cable Services
4323 538 1132 Time Warner Telecom
7725 469 499 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 401 488 CenturyTel Internet Holdings,
1239 370 885 Sprint
702 365 591 UUNET - Commercial IP service
10036 339 349 C&M Communication Co. Ltd.
6198 338 462 BellSouth Network Solutions,
7011 324 375 Citizens Utilities
6517 292 315 Yipes Communications, Inc.
15270 292 317 PaeTec.net -a division of Pae
9929 283 368 China Netcom Corp.
20115 281 650 Charter Communications
11456 274 312 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 9:1 12:1542 13:1 15:9
16:2 17:3 18:3 20:4 24:1179 30:2
32:69 33:3 38:135 40:54 44:3 47:2
52:4 55:2 56:3 57:24 58:151 59:52
60:62 61:788 62:630 63:1892 64:2771 65:2082
66:2894 67:606 68:550 69:1092 70:138 71:10
72:254 80:590 81:560 82:435 83:286 84:215
85:282 86:48 87:17 128:180 129:169 130:87
131:295 132:37 133:1 134:145 135:43 136:137
137:74 138:165 139:60 140:265 141:106 142:153
143:139 144:202 145:32 146:286 147:109 148:303
149:175 150:105 151:65 152:108 153:88 154:4
155:144 156:79 157:100 158:161 159:168 160:77
161:66 162:212 163:93 164:209 165:185 166:153
167:243 168:452 169:140 170:320 171:8 172:1
190:1 192:5698 193:3197 194:2422 195:1584 196:667
198:3900 199:3271 200:4043 201:199 202:5916 203:6412
204:3786 205:2011 206:2445 207:2796 208:2036 209:3295
210:1790 211:876 212:1251 213:1313 214:265 215:29
216:3481 217:1107 218:205 219:140 220:394 221:236
222:118
End of report
