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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 15 Jul, 2005
Analysis Summary
----------------
BGP routing table entries examined: 166757
Prefixes after maximum aggregation: 96347
Unique aggregates announced to Internet: 80945
Total ASes present in the Internet Routing Table: 20061
Origin-only ASes present in the Internet Routing Table: 17475
Origin ASes announcing only one prefix: 8205
Transit ASes present in the Internet Routing Table: 2586
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: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1393964128
Equivalent to 83 /8s, 22 /16s and 52 /24s
Percentage of available address space announced: 37.6
Percentage of allocated address space announced: 56.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79207
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34766
Total APNIC prefixes after maximum aggregation: 16121
Prefixes being announced from the APNIC address blocks: 32634
Unique aggregates announced from the APNIC address blocks: 16609
APNIC Region origin ASes present in the Internet Routing Table: 2311
APNIC Region origin ASes announcing only one prefix: 673
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: 190436992
Equivalent to 11 /8s, 89 /16s and 214 /24s
Percentage of available APNIC address space announced: 70.7
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: 89145
Total ARIN prefixes after maximum aggregation: 54373
Prefixes being announced from the ARIN address blocks: 69658
Unique aggregates announced from the ARIN address blocks: 25787
ARIN Region origin ASes present in the Internet Routing Table: 10068
ARIN Region origin ASes announcing only one prefix: 3699
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: 252717056
Equivalent to 15 /8s, 16 /16s and 40 /24s
Percentage of available ARIN address space announced: 62.8
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: 32049
Total RIPE prefixes after maximum aggregation: 21907
Prefixes being announced from the RIPE address blocks: 29057
Unique aggregates announced from the RIPE address blocks: 19482
RIPE Region origin ASes present in the Internet Routing Table: 6856
RIPE Region origin ASes announcing only one prefix: 3606
RIPE Region transit ASes present in the Internet Routing Table: 1125
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 211750080
Equivalent to 12 /8s, 159 /16s and 12 /24s
Percentage of available RIPE address space announced: 63.1
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: 9133
Total LACNIC prefixes after maximum aggregation: 3171
Prefixes being announced from the LACNIC address blocks: 7480
Unique aggregates announced from the LACNIC address blocks: 4334
LACNIC Region origin ASes present in the Internet Routing Table: 624
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20434976
Equivalent to 1 /8s, 55 /16s and 208 /24s
Percentage of available LACNIC address space announced: 30.5
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: 1641
Total AfriNIC prefixes after maximum aggregation: 775
Prefixes being announced from the AfriNIC address blocks: 1024
Unique aggregates announced from the AfriNIC address blocks: 789
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: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2327296
Equivalent to 0 /8s, 35 /16s and 131 /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 5526 196 CHINANET-BACKBONE
1221 760 1454 535 Telstra Pty Ltd
9583 758 57 86 Sify Limited
4755 655 248 145 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 508 106 74 TPG Internet Pty Ltd
17676 437 6590 76 Softbank BB Corp.
9443 372 77 75 Primus Telecommunications
9929 367 223 49 China Netcom Corp.
2907 337 1789 314 SINET Japan
17557 327 23 154 Pakistan Telecom
9498 312 82 55 BHARTI BT INTERNET LTD.
7474 311 272 215 SingTel Optus Pty Ltd
4802 287 50 164 Wantree Development
4808 282 243 166 CNCGROUP IP network: China169
9837 279 80 183 Powertel Ltd
10036 278 59 244 C&M Communication Co. Ltd.
18302 276 109 154 SK Global co., Ltd
17974 270 65 14 PT TELEKOMUNIKASI INDONESIA
17488 255 15 18 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6416 972 AT&T WorldNet Services
174 1140 5808 1063 Cogent Communications
4323 1130 664 221 Time Warner Telecom
721 1098 21787 311 DLA Systems Automation Center
701 1011 8167 858 UUNET Technologies, Inc.
6197 939 522 433 BellSouth Network Solutions,
2386 895 529 660 AT&T Data Communications Serv
1239 881 2876 636 Sprint
18566 827 224 7 Covad Communications
20115 650 498 321 Charter Communications
209 626 3507 496 Qwest
3356 561 10792 430 Level 3 Communications, LLC
27364 555 44 18 Armstrong Cable Services
3602 544 123 104 Sprint Canada, Inc.
852 542 1094 388 Telus Advanced Communications
3561 537 2384 421 Savvis
7725 504 64 17 MediaOne
22773 499 1188 23 Cox Communications, Inc.
5668 493 114 25 CenturyTel Internet Holdings,
6198 467 396 224 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 1999 483 UUNET - Commercial IP service
3320 303 3232 242 Deutsche Telekom AG
3301 300 1081 286 TeliaNet Sweden
8220 266 472 262 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 228 467 221 Song Networks
8708 226 253 210 Romania Data Systems S.A.
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 173 49 151 Dynamic Network Technologies,
3269 169 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 162 21 11 Bulgarian Telecommunication C
3300 155 184 88 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 149 271 34 TTnet Autonomous System
25186 142 145 99 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 379 599 159 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 233 99 59 Servicios Alestra S.A de C.V
11664 207 19 23 Keytech SA
6147 192 110 21 Telefonica Del Peru
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 18 Telecom Argentina Stet-France
19632 142 14 5 Metropolis Intercom S.A.
22047 132 112 7 VTR PUNTO NET S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
6503 115 147 73 AVANTEL, S.A.
19169 115 7 22 Telconet
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
10481 101 40 7 Prima S.A.
23216 99 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 264 621 222 The Internet Solution
5536 120 15 17 Internet Egypt Network
2018 95 295 86 Tertiary Education Network
8452 92 28 6 TEDATA
2905 75 266 67 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
15475 49 84 4 Nile Online
20928 47 16 2 Noor Advanced Technologies AS
9129 43 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
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
23889 20 5 9 MAURITIUS TELECOM
10798 19 1 11 Standard Bank of South Africa
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 909 Time Warner Telecom
18566 827 820 Covad Communications
721 1098 787 DLA Systems Automation Center
4134 922 726 CHINANET-BACKBONE
9583 758 672 Sify Limited
27364 555 537 Armstrong Cable Services
4755 655 510 Videsh Sanchar Nigam Ltd. Aut
6197 939 506 BellSouth Network Solutions,
7725 504 487 MediaOne
22773 499 476 Cox Communications, Inc.
5668 493 468 CenturyTel Internet Holdings,
3602 544 440 Sprint Canada, Inc.
7545 508 434 TPG Internet Pty Ltd
17676 437 361 Softbank BB Corp.
6467 380 346 E.Spire Communications, Inc.
20115 650 329 Charter Communications
9929 367 318 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
19262 429 312 Verizon Global Networks
6140 392 312 ImpSat
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
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
/13:162 /14:313 /15:599 /16:8437 /17:2622 /18:4502
/19:10484 /20:11392 /21:9436 /22:12900 /23:13858 /24:90928
/25:336 /26:296 /27:178 /28:60 /29:28 /30:75
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 811 827 Covad Communications
6197 765 939 BellSouth Network Solutions,
7018 706 1498 AT&T WorldNet Services
2386 609 895 AT&T Data Communications Serv
9583 576 758 Sify Limited
27364 546 555 Armstrong Cable Services
4323 536 1130 Time Warner Telecom
7725 474 504 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 401 493 CenturyTel Internet Holdings,
1239 368 881 Sprint
702 365 592 UUNET - Commercial IP service
6198 342 467 BellSouth Network Solutions,
7011 324 375 Citizens Utilities
15270 293 318 PaeTec.net -a division of Pae
6517 292 315 Yipes Communications, Inc.
9929 282 367 China Netcom Corp.
20115 281 650 Charter Communications
11456 274 312 Carolina Online, Inc.
10036 268 278 C&M Communication Co. Ltd.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 9:1 12:1554 13:1 15:9
16:2 17:3 18:3 20:4 24:1179 30:2
32:69 33:3 38:136 40:54 44:3 47:2
52:4 55:2 56:3 57:23 58:151 59:48
60:64 61:800 62:624 63:1886 64:2777 65:2074
66:2902 67:621 68:552 69:1092 70:145 71:10
72:269 80:597 81:573 82:430 83:287 84:213
85:287 86:52 87:17 128:181 129:169 130:88
131:293 132:41 133:1 134:145 135:43 136:137
137:74 138:161 139:60 140:300 141:106 142:153
143:136 144:201 145:33 146:289 147:109 148:306
149:175 150:108 151:65 152:108 153:88 154:4
155:142 156:78 157:101 158:161 159:169 160:78
161:71 162:217 163:92 164:195 165:187 166:157
167:242 168:437 169:147 170:320 171:8 172:1
190:1 192:5705 193:3215 194:2430 195:1590 196:670
198:3892 199:3287 200:4048 201:205 202:5887 203:6388
204:3783 205:2001 206:2445 207:2803 208:2041 209:3297
210:1788 211:901 212:1270 213:1341 214:271 215:31
216:3488 217:1126 218:205 219:138 220:393 221:234
222:120
End of report
