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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 09 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 167859
Prefixes after maximum aggregation: 96530
Unique aggregates announced to Internet: 81181
Total ASes present in the Internet Routing Table: 20239
Origin-only ASes present in the Internet Routing Table: 17655
Origin ASes announcing only one prefix: 8344
Transit ASes present in the Internet Routing Table: 2584
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: 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: 13
Number of addresses announced to Internet: 1401448213
Equivalent to 83 /8s, 136 /16s and 103 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 56.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79645
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34906
Total APNIC prefixes after maximum aggregation: 15745
Prefixes being announced from the APNIC address blocks: 32754
Unique aggregates announced from the APNIC address blocks: 16291
APNIC Region origin ASes present in the Internet Routing Table: 2323
APNIC Region origin ASes announcing only one prefix: 688
APNIC Region transit ASes present in the Internet Routing Table: 343
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 192633472
Equivalent to 11 /8s, 123 /16s and 90 /24s
Percentage of available APNIC address space announced: 71.5
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: 89759
Total ARIN prefixes after maximum aggregation: 54720
Prefixes being announced from the ARIN address blocks: 70099
Unique aggregates announced from the ARIN address blocks: 25929
ARIN Region origin ASes present in the Internet Routing Table: 10137
ARIN Region origin ASes announcing only one prefix: 3747
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 255957781
Equivalent to 15 /8s, 65 /16s and 155 /24s
Percentage of available ARIN address space announced: 63.6
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: 32398
Total RIPE prefixes after maximum aggregation: 22122
Prefixes being announced from the RIPE address blocks: 29415
Unique aggregates announced from the RIPE address blocks: 19783
RIPE Region origin ASes present in the Internet Routing Table: 6954
RIPE Region origin ASes announcing only one prefix: 3678
RIPE Region transit ASes present in the Internet Routing Table: 1132
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 214233728
Equivalent to 12 /8s, 196 /16s and 242 /24s
Percentage of available RIPE address space announced: 63.8
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: 9124
Total LACNIC prefixes after maximum aggregation: 3159
Prefixes being announced from the LACNIC address blocks: 7501
Unique aggregates announced from the LACNIC address blocks: 4398
LACNIC Region origin ASes present in the Internet Routing Table: 628
LACNIC Region origin ASes announcing only one prefix: 195
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 20786944
Equivalent to 1 /8s, 61 /16s and 47 /24s
Percentage of available LACNIC address space announced: 31.0
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: 1649
Total AfriNIC prefixes after maximum aggregation: 784
Prefixes being announced from the AfriNIC address blocks: 1008
Unique aggregates announced from the AfriNIC address blocks: 771
AfriNIC Region origin ASes present in the Internet Routing Table: 132
AfriNIC Region origin ASes announcing only one prefix: 36
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2358016
Equivalent to 0 /8s, 35 /16s and 251 /24s
Percentage of available AfriNIC address space announced: 7.0
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 954 5521 192 CHINANET-BACKBONE
1221 768 1327 529 Telstra Pty Ltd
9583 747 77 14 Sify Limited
4755 678 259 65 Videsh Sanchar Nigam Ltd. Aut
4766 593 3413 279 Korea Telecom (KIX)
7545 515 108 72 TPG Internet Pty Ltd
17676 463 6707 98 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9929 346 224 48 China Netcom Corp.
9498 340 83 61 BHARTI BT INTERNET LTD.
2907 338 1789 315 SINET Japan
17557 326 23 157 Pakistan Telecom
7474 315 273 217 SingTel Optus Pty Ltd
17488 305 18 8 Hathway IP Over Cable Interne
4802 299 53 165 Wantree Development
18302 295 109 158 SK Global co., Ltd
9837 277 79 180 Powertel Ltd
17974 271 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 262 206 UUNET - Commercial IP service
9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1503 6402 974 AT&T WorldNet Services
4323 1139 704 220 Time Warner Telecom
174 1126 5825 1040 Cogent Communications
721 1083 21779 312 DLA Systems Automation Center
701 1014 8157 859 UUNET Technologies, Inc.
6197 940 497 447 BellSouth Network Solutions,
2386 892 528 655 AT&T Data Communications Serv
1239 871 2863 629 Sprint
18566 833 224 7 Covad Communications
20115 651 499 322 Charter Communications
209 622 3470 490 Qwest
3356 587 10697 449 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 125 105 Sprint Canada, Inc.
3561 534 2385 422 Savvis
22773 507 1316 22 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 467 396 224 BellSouth Network Solutions,
7132 450 4689 385 SBC Internet Services
852 445 1093 384 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1999 483 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 292 3232 241 Deutsche Telekom AG
8220 262 472 258 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 230 469 223 Song Networks
8708 228 262 214 Romania Data Systems S.A.
1257 196 712 174 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 179 49 155 Dynamic Network Technologies,
5400 177 289 149 BT Ignite European Backbone
786 174 1794 174 The JANET IP Service
3269 170 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 163 20 7 Bulgarian Telecommunication C
9121 156 274 43 TTnet Autonomous System
3300 155 184 89 AUCS Communications Services
6830 149 665 32 UPC Distribution Services
25186 143 145 100 France Telecom Transpac's Tra
8551 139 120 20 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 380 599 160 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 241 99 59 Servicios Alestra S.A de C.V
6147 192 110 21 Telefonica Del Peru
11664 181 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 144 69 18 Telecom Argentina Stet-France
22047 143 112 7 VTR PUNTO NET S.A.
19632 142 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
19169 120 8 26 Telconet
6503 115 148 76 AVANTEL, S.A.
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
21826 102 13 19 INTERCABLE
10481 101 40 7 Prima S.A.
22927 97 81 26 TELEFONICA DE ARGENTINA
5639 96 12 9 Telecommunications Services o
23216 96 24 21 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 263 621 221 The Internet Solution
5536 120 15 17 Internet Egypt Network
8452 99 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
20928 56 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
15475 47 84 4 Nile Online
9129 42 3 3 UUNET Kenya
5713 39 148 31 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 1 1 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1139 919 Time Warner Telecom
18566 833 826 Covad Communications
721 1083 771 DLA Systems Automation Center
4134 954 762 CHINANET-BACKBONE
9583 747 733 Sify Limited
4755 678 613 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 940 493 BellSouth Network Solutions,
22773 507 485 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
3602 549 444 Sprint Canada, Inc.
7545 515 443 TPG Internet Pty Ltd
17676 463 365 Softbank BB Corp.
6467 435 362 E.Spire Communications, Inc.
20115 651 329 Charter Communications
19262 441 320 Verizon Global Networks
4766 593 314 Korea Telecom (KIX)
11492 312 306 Cable One
9443 382 305 Primus Telecommunications
9929 346 298 China Netcom Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
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
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
64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt
64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.172.0.0/19 721 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 /11:16 /12:74
/13:166 /14:318 /15:608 /16:8475 /17:2675 /18:4552
/19:10570 /20:11591 /21:9618 /22:13027 /23:13936 /24:91145
/25:373 /26:318 /27:179 /28:49 /29:28 /30:77
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 817 833 Covad Communications
6197 767 940 BellSouth Network Solutions,
7018 705 1503 AT&T WorldNet Services
2386 603 892 AT&T Data Communications Serv
9583 564 747 Sify Limited
27364 545 554 Armstrong Cable Services
4323 541 1139 Time Warner Telecom
4766 411 593 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 365 593 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 362 871 Sprint
6198 342 467 BellSouth Network Solutions,
7011 328 380 Citizens Utilities
11492 304 312 Cable One
6517 297 319 Yipes Communications, Inc.
15270 296 320 PaeTec.net -a division of Pae
6467 289 435 E.Spire Communications, Inc.
20115 283 651 Charter Communications
18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 12:1555 13:1 15:9 16:2
17:3 18:3 20:4 24:969 30:2 32:70
33:1 38:140 40:55 44:4 47:2 52:4
55:2 56:3 57:23 58:143 59:58 60:104
61:730 62:680 63:1884 64:2818 65:2097 66:2922
67:581 68:571 69:1139 70:153 71:13 72:286
80:597 81:559 82:449 83:294 84:226 85:295
86:73 87:24 128:155 129:168 130:88 131:294
132:38 133:1 134:145 135:42 136:137 137:70
138:166 139:61 140:403 141:105 142:144 143:141
144:194 145:34 146:291 147:110 148:291 149:177
150:107 151:64 152:108 153:89 154:5 155:141
156:77 157:100 158:167 159:168 160:82 161:71
162:219 163:96 164:189 165:192 166:154 167:243
168:436 169:145 170:321 171:8 172:1 190:1
192:5735 193:3239 194:2424 195:1573 196:651 198:3865
199:3289 200:4054 201:229 202:5978 203:6386 204:3792
205:2039 206:2455 207:2821 208:2048 209:3350 210:1638
211:738 212:1258 213:1338 214:271 215:32 216:3631
217:1110 218:212 219:181 220:433 221:235 222:123
End of report
