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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 13 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 164674
Prefixes after maximum aggregation: 95274
Unique aggregates announced to Internet: 79260
Total ASes present in the Internet Routing Table: 19829
Origin-only ASes present in the Internet Routing Table: 17261
Origin ASes announcing only one prefix: 8094
Transit ASes present in the Internet Routing Table: 2568
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
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: 1414581344
Equivalent to 84 /8s, 80 /16s and 204 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34068
Total APNIC prefixes after maximum aggregation: 15844
Prefixes being announced from the APNIC address blocks: 31956
Unique aggregates announced from the APNIC address blocks: 15925
APNIC Region origin ASes present in the Internet Routing Table: 2291
APNIC Region origin ASes announcing only one prefix: 671
APNIC Region transit ASes present in the Internet Routing Table: 344
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186620800
Equivalent to 11 /8s, 31 /16s and 155 /24s
Percentage of available APNIC address space announced: 69.3
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: 88640
Total ARIN prefixes after maximum aggregation: 53936
Prefixes being announced from the ARIN address blocks: 69192
Unique aggregates announced from the ARIN address blocks: 25342
ARIN Region origin ASes present in the Internet Routing Table: 9984
ARIN Region origin ASes announcing only one prefix: 3653
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: 18
Number of ARIN addresses announced to Internet: 249419008
Equivalent to 14 /8s, 221 /16s and 213 /24s
Percentage of available ARIN address space announced: 70.8
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31333
Total RIPE prefixes after maximum aggregation: 21608
Prefixes being announced from the RIPE address blocks: 28397
Unique aggregates announced from the RIPE address blocks: 19100
RIPE Region origin ASes present in the Internet Routing Table: 6738
RIPE Region origin ASes announcing only one prefix: 3543
RIPE Region transit ASes present in the Internet Routing Table: 1120
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 208048832
Equivalent to 12 /8s, 102 /16s and 146 /24s
Percentage of available RIPE address space announced: 72.9
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: 8948
Total LACNIC prefixes after maximum aggregation: 3113
Prefixes being announced from the LACNIC address blocks: 7344
Unique aggregates announced from the LACNIC address blocks: 4272
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 191
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19129120
Equivalent to 1 /8s, 35 /16s and 227 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1662
Total AfriNIC prefixes after maximum aggregation: 773
Prefixes being announced from the AfriNIC address blocks: 1013
Unique aggregates announced from the AfriNIC address blocks: 772
AfriNIC Region origin ASes present in the Internet Routing Table: 128
AfriNIC Region origin ASes announcing only one prefix: 36
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: 2287872
Equivalent to 0 /8s, 34 /16s and 233 /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 913 5150 192 CHINANET-BACKBONE
1221 756 1453 542 Telstra Pty Ltd
9583 755 55 63 Sify Limited
4755 609 246 126 Videsh Sanchar Nigam Ltd. Aut
4766 594 3412 277 Korea Telecom (KIX)
7545 501 104 71 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 374 77 76 Primus Telecommunications
9929 364 221 48 China Netcom Corp.
10036 340 56 306 C&M Communication Co. Ltd.
2907 339 1805 316 SINET Japan
9498 321 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
7474 314 271 218 SingTel Optus Pty Ltd
4808 310 250 172 CNCGROUP IP network: China169
4802 279 47 159 Wantree Development
18302 270 108 146 SK Global co., Ltd
17974 261 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 276 207 UUNET - Commercial IP service
2764 253 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1490 6460 968 AT&T WorldNet Services
174 1253 5616 1075 Cogent Communications
4323 1116 647 217 Time Warner Telecom
721 1112 21787 313 DLA Systems Automation Center
701 1010 8170 854 UUNET Technologies, Inc.
6197 922 524 426 BellSouth Network Solutions,
1239 895 2871 647 Sprint
2386 860 533 641 AT&T Data Communications Serv
18566 817 224 7 Covad Communications
209 628 3489 495 Qwest
20115 616 492 311 Charter Communications
3356 565 10822 432 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
3602 542 123 100 Sprint Canada, Inc.
3561 536 2384 422 Savvis
852 525 1094 388 Telus Advanced Communications
22773 491 1188 23 Cox Communications, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
7725 484 60 15 MediaOne
6198 467 417 219 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2001 487 UUNET - Commercial IP service
3320 305 3232 241 Deutsche Telekom AG
3301 296 1081 284 TeliaNet Sweden
8220 269 469 265 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 232 254 215 Romania Data Systems S.A.
3246 224 488 219 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 169 47 147 Dynamic Network Technologies,
719 167 340 101 LANLINK autonomous system
3269 166 1496 69 TELECOM ITALIA
5400 164 285 137 BT Ignite European Backbone
8866 158 21 11 Bulgarian Telecommunication C
3300 153 184 85 AUCS Communications Services
6830 138 529 28 UPC Distribution Services
3352 131 1240 33 Ibernet, Internet Access Netw
9051 131 8 33 INCONET Autonomous System
9121 131 269 42 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 380 600 149 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
11664 197 19 23 Keytech SA
6147 196 110 21 Telefonica Del Peru
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 19 Telecom Argentina Stet-France
6505 131 90 89 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 130 64 3 Cable-Wireless Panama
13999 113 52 9 Mega Cable S.A. de C.V.
19632 109 14 5 Metropolis Intercom S.A.
18822 107 7 13 TELEFONICA MANQUEHUE
6503 106 146 72 AVANTEL, S.A.
19169 105 7 20 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
21826 95 13 20 INTERCABLE
23216 95 24 23 RAMtelecom Telecomunicaciones
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
20928 94 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 83 28 6 TEDATA
2905 74 266 66 The Internetworking Company o
24835 64 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 44 3 3 UUNET Kenya
12455 41 7 4 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 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
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
21491 18 1 2 UTL On-line is RF broadband I
7460 17 3 5 LIA Internet Access
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1116 899 Time Warner Telecom
18566 817 810 Covad Communications
721 1112 799 DLA Systems Automation Center
4134 913 721 CHINANET-BACKBONE
9583 755 692 Sify Limited
27364 565 547 Armstrong Cable Services
6197 922 496 BellSouth Network Solutions,
4755 609 483 Videsh Sanchar Nigam Ltd. Aut
7725 484 469 MediaOne
22773 491 468 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 542 442 Sprint Canada, Inc.
7545 501 430 TPG Internet Pty Ltd
6467 429 395 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 400 327 ImpSat
4766 594 317 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 616 305 Charter Communications
9443 374 298 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
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 200.61.32.0/23 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 /8:19 /9:3 /10:8 /11:15 /12:71
/13:158 /14:308 /15:604 /16:8420 /17:2575 /18:4421
/19:10389 /20:11269 /21:9221 /22:12677 /23:13756 /24:89834
/25:331 /26:273 /27:146 /28:44 /29:29 /30:70
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 801 817 Covad Communications
6197 751 922 BellSouth Network Solutions,
7018 688 1490 AT&T WorldNet Services
2386 609 860 AT&T Data Communications Serv
9583 572 755 Sify Limited
27364 556 565 Armstrong Cable Services
4323 538 1116 Time Warner Telecom
7725 455 484 MediaOne
4766 412 594 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 378 895 Sprint
702 366 594 UUNET - Commercial IP service
6198 341 467 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 429 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
15270 278 299 PaeTec.net -a division of Pae
6517 273 295 Yipes Communications, Inc.
11456 272 311 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1553 13:1 15:9 16:2
17:3 18:3 20:4 24:1166 30:2 32:69
33:4 38:127 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:55
61:813 62:605 63:1880 64:2742 65:2067 66:2877
67:579 68:526 69:1039 70:114 71:9 72:223
80:585 81:553 82:417 83:277 84:200 85:250
86:20 128:186 129:172 130:88 131:297 132:36
133:1 134:145 135:40 136:128 137:69 138:166
139:59 140:194 141:102 142:148 143:137 144:190
145:33 146:287 147:107 148:299 149:172 150:105
151:65 152:107 153:86 154:5 155:142 156:78
157:99 158:160 159:171 160:75 161:67 162:323
163:92 164:211 165:179 166:159 167:236 168:426
169:142 170:310 171:8 172:1 192:5723 193:3180
194:2419 195:1551 196:662 198:3914 199:3288 200:4005
201:157 202:5783 203:6311 204:3758 205:2012 206:2512
207:2826 208:2048 209:3313 210:1714 211:853 212:1217
213:1320 214:265 215:31 216:3468 217:1148 218:207
219:108 220:386 221:228 222:107
End of report
