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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 27 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165396
Prefixes after maximum aggregation: 95756
Unique aggregates announced to Internet: 80157
Total ASes present in the Internet Routing Table: 19940
Origin-only ASes present in the Internet Routing Table: 17365
Origin ASes announcing only one prefix: 8150
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: 24
Prefixes from unregistered ASNs in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1402633696
Equivalent to 83 /8s, 154 /16s and 125 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 65.1
Total number of prefixes smaller than registry allocations: 78146
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34345
Total APNIC prefixes after maximum aggregation: 15996
Prefixes being announced from the APNIC address blocks: 32231
Unique aggregates announced from the APNIC address blocks: 16355
APNIC Region origin ASes present in the Internet Routing Table: 2296
APNIC Region origin ASes announcing only one prefix: 671
APNIC Region transit ASes present in the Internet Routing Table: 349
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 187021696
Equivalent to 11 /8s, 37 /16s and 185 /24s
Percentage of available APNIC address space announced: 69.4
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: 88867
Total ARIN prefixes after maximum aggregation: 54144
Prefixes being announced from the ARIN address blocks: 69449
Unique aggregates announced from the ARIN address blocks: 25556
ARIN Region origin ASes present in the Internet Routing Table: 10027
ARIN Region origin ASes announcing only one prefix: 3678
ARIN Region transit ASes present in the Internet Routing Table: 946
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 251026688
Equivalent to 14 /8s, 246 /16s and 93 /24s
Percentage of available ARIN address space announced: 62.3
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: 31502
Total RIPE prefixes after maximum aggregation: 21719
Prefixes being announced from the RIPE address blocks: 28567
Unique aggregates announced from the RIPE address blocks: 19237
RIPE Region origin ASes present in the Internet Routing Table: 6794
RIPE Region origin ASes announcing only one prefix: 3575
RIPE Region transit ASes present in the Internet Routing Table: 1114
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 209672768
Equivalent to 12 /8s, 127 /16s and 90 /24s
Percentage of available RIPE address space announced: 73.5
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, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8994
Total LACNIC prefixes after maximum aggregation: 3123
Prefixes being announced from the LACNIC address blocks: 7384
Unique aggregates announced from the LACNIC address blocks: 4309
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20384800
Equivalent to 1 /8s, 55 /16s and 12 /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: 1659
Total AfriNIC prefixes after maximum aggregation: 774
Prefixes being announced from the AfriNIC address blocks: 1022
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: 37
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: 15
Number of AfriNIC addresses announced to Internet: 2296832
Equivalent to 0 /8s, 35 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 6.8
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 914 5150 193 CHINANET-BACKBONE
1221 759 1454 535 Telstra Pty Ltd
9583 758 55 79 Sify Limited
4755 657 248 146 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.
9443 375 77 77 Primus Telecommunications
9929 354 221 48 China Netcom Corp.
10036 345 65 311 C&M Communication Co. Ltd.
2907 344 1822 319 SINET Japan
9498 328 83 62 BHARTI BT INTERNET LTD.
17557 319 22 154 Pakistan Telecom
7474 313 271 216 SingTel Optus Pty Ltd
4802 282 49 161 Wantree Development
4808 280 243 158 CNCGROUP IP network: China169
9837 278 80 182 Powertel Ltd
18302 269 108 150 SK Global co., Ltd
17974 267 65 14 PT TELEKOMUNIKASI INDONESIA
2764 254 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6428 963 AT&T WorldNet Services
174 1151 5809 1070 Cogent Communications
4323 1121 647 217 Time Warner Telecom
721 1108 21771 311 DLA Systems Automation Center
701 1013 8168 855 UUNET Technologies, Inc.
6197 930 535 432 BellSouth Network Solutions,
2386 884 526 651 AT&T Data Communications Serv
1239 883 2892 636 Sprint
18566 824 224 7 Covad Communications
20115 648 497 321 Charter Communications
209 625 3507 496 Qwest
27364 565 43 18 Armstrong Cable Services
3356 560 10790 428 Level 3 Communications, LLC
3602 543 123 101 Sprint Canada, Inc.
852 541 1093 388 Telus Advanced Communications
3561 539 2385 422 Savvis
22773 497 1188 23 Cox Communications, Inc.
7725 491 60 15 MediaOne
5668 488 115 25 CenturyTel Internet Holdings,
6198 463 416 218 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 596 2001 488 UUNET - Commercial IP service
3320 305 3232 242 Deutsche Telekom AG
3301 297 1081 284 TeliaNet Sweden
8220 267 469 262 COLT Telecommunications
680 244 2041 240 DFN-IP service G-WiN
8708 231 254 214 Romania Data Systems S.A.
3246 226 488 221 Song Networks
1257 199 712 175 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
5400 170 285 145 BT Ignite European Backbone
6746 170 48 148 Dynamic Network Technologies,
3269 168 1520 72 TELECOM ITALIA
8866 156 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 147 537 31 UPC Distribution Services
9121 141 272 36 TTnet Autonomous System
25186 139 137 96 France Telecom Transpac's Tra
3352 137 1272 35 Ibernet, Internet Access Netw
8551 133 116 20 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 372 600 161 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 219 98 52 Servicios Alestra S.A de C.V
6147 197 110 21 Telefonica Del Peru
11664 196 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 149 68 21 Telecom Argentina Stet-France
22047 133 112 7 VTR PUNTO NET S.A.
6505 131 90 88 Global One Communicaoes Ltda
11556 131 64 3 Cable-Wireless Panama
18822 109 7 14 TELEFONICA MANQUEHUE
19169 109 7 22 Telconet
19632 109 14 5 Metropolis Intercom S.A.
13999 107 52 9 Mega Cable S.A. de C.V.
10481 101 40 7 Prima S.A.
6503 100 146 72 AVANTEL, S.A.
22927 96 73 25 TELEFONICA DE ARGENTINA
23216 96 24 23 RAMtelecom Telecomunicaciones
21826 95 13 20 INTERCABLE
5639 94 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 91 295 86 Tertiary Education Network
8452 91 28 6 TEDATA
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 34 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 1121 904 Time Warner Telecom
18566 824 817 Covad Communications
721 1108 797 DLA Systems Automation Center
4134 914 721 CHINANET-BACKBONE
9583 758 679 Sify Limited
27364 565 547 Armstrong Cable Services
4755 657 511 Videsh Sanchar Nigam Ltd. Aut
6197 930 498 BellSouth Network Solutions,
7725 491 476 MediaOne
22773 497 474 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 543 442 Sprint Canada, Inc.
7545 501 429 TPG Internet Pty Ltd
6467 414 380 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 404 329 ImpSat
20115 648 327 Charter Communications
4766 591 312 Korea Telecom (KIX)
9929 354 306 China Netcom Corp.
19262 410 305 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
64512 PRIVATE 200.59.145.0/24 11664 Keytech SA
64512 PRIVATE 200.59.146.0/24 11664 Keytech SA
64512 PRIVATE 200.59.147.0/24 11664 Keytech SA
64512 PRIVATE 200.59.161.0/24 11664 Keytech SA
64512 PRIVATE 200.59.162.0/24 11664 Keytech SA
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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 /8:18 /9:3 /10:8 /11:15 /12:73
/13:160 /14:310 /15:591 /16:8431 /17:2599 /18:4452
/19:10435 /20:11314 /21:9329 /22:12734 /23:13740 /24:90209
/25:325 /26:306 /27:167 /28:46 /29:29 /30:69
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 808 824 Covad Communications
6197 758 930 BellSouth Network Solutions,
7018 686 1481 AT&T WorldNet Services
2386 599 884 AT&T Data Communications Serv
9583 577 758 Sify Limited
27364 556 565 Armstrong Cable Services
4323 542 1121 Time Warner Telecom
7725 462 491 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 371 883 Sprint
702 368 596 UUNET - Commercial IP service
6198 337 463 BellSouth Network Solutions,
10036 335 345 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 288 414 E.Spire Communications, Inc.
15270 286 311 PaeTec.net -a division of Pae
6517 283 305 Yipes Communications, Inc.
20115 280 648 Charter Communications
11456 274 312 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:17 9:1 12:1545 13:1 15:9
16:2 17:3 18:3 20:4 24:1182 30:2
32:69 33:4 38:132 40:54 44:3 47:2
52:4 55:2 56:3 57:27 58:101 59:53
60:58 61:789 62:624 63:1883 64:2766 65:2085
66:2918 67:595 68:541 69:1070 70:119 71:10
72:246 80:582 81:570 82:452 83:279 84:208
85:256 86:28 128:176 129:174 130:87 131:297
132:37 133:1 134:149 135:43 136:134 137:67
138:168 139:59 140:263 141:105 142:149 143:143
144:194 145:32 146:287 147:108 148:301 149:171
150:106 151:65 152:107 153:88 154:4 155:142
156:78 157:99 158:160 159:168 160:77 161:68
162:208 163:92 164:212 165:178 166:154 167:238
168:431 169:139 170:310 171:9 172:1 192:5683
193:3180 194:2388 195:1571 196:665 198:3907 199:3297
200:4014 201:171 202:5854 203:6387 204:3769 205:2025
206:2464 207:2820 208:2084 209:3300 210:1703 211:854
212:1232 213:1298 214:266 215:31 216:3439 217:1147
218:207 219:133 220:393 221:230 222:112
End of report
