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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 26 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 160747
Prefixes after maximum aggregation: 93445
Unique aggregates announced to Internet: 77367
Total ASes present in the Internet Routing Table: 19476
Origin-only ASes present in the Internet Routing Table: 16930
Origin ASes announcing only one prefix: 7935
Transit ASes present in the Internet Routing Table: 2546
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1401512512
Equivalent to 83 /8s, 137 /16s and 98 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 75137
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32912
Total APNIC prefixes after maximum aggregation: 15470
Prefixes being announced from the APNIC address blocks: 30846
Unique aggregates announced from the APNIC address blocks: 15521
APNIC Region origin ASes present in the Internet Routing Table: 2249
APNIC Region origin ASes announcing only one prefix: 659
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: 15
Number of APNIC addresses announced to Internet: 182024064
Equivalent to 10 /8s, 217 /16s and 119 /24s
Percentage of available APNIC address space announced: 67.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
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: 87220
Total ARIN prefixes after maximum aggregation: 53153
Prefixes being announced from the ARIN address blocks: 68028
Unique aggregates announced from the ARIN address blocks: 25001
ARIN Region origin ASes present in the Internet Routing Table: 9879
ARIN Region origin ASes announcing only one prefix: 3588
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: 21
Number of ARIN addresses announced to Internet: 246555392
Equivalent to 14 /8s, 178 /16s and 35 /24s
Percentage of available ARIN address space announced: 70.0
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: 30545
Total RIPE prefixes after maximum aggregation: 21085
Prefixes being announced from the RIPE address blocks: 27569
Unique aggregates announced from the RIPE address blocks: 18368
RIPE Region origin ASes present in the Internet Routing Table: 6573
RIPE Region origin ASes announcing only one prefix: 3468
RIPE Region transit ASes present in the Internet Routing Table: 1104
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 201853632
Equivalent to 12 /8s, 8 /16s and 10 /24s
Percentage of available RIPE address space announced: 70.8
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, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8614
Total LACNIC prefixes after maximum aggregation: 3031
Prefixes being announced from the LACNIC address blocks: 7016
Unique aggregates announced from the LACNIC address blocks: 4112
LACNIC Region origin ASes present in the Internet Routing Table: 610
LACNIC Region origin ASes announcing only one prefix: 193
LACNIC Region transit ASes present in the Internet Routing Table: 112
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 18425856
Equivalent to 1 /8s, 25 /16s and 40 /24s
Percentage of available LACNIC address space announced: 54.9
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: 1439
Total AfriNIC prefixes after maximum aggregation: 706
Prefixes being announced from the AfriNIC address blocks: 940
Unique aggregates announced from the AfriNIC address blocks: 743
AfriNIC Region origin ASes present in the Internet Routing Table: 100
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2209536
Equivalent to 0 /8s, 33 /16s and 183 /24s
Percentage of available AfriNIC address space announced: 6.6
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 903 5103 183 CHINANET-BACKBONE
1221 772 1192 549 Telstra Pty Ltd
9583 721 52 68 Sify Limited
4766 584 3413 275 Korea Telecom (KIX)
4755 543 243 112 Videsh Sanchar Nigam Ltd. Aut
7545 487 86 70 TPG Internet Pty Ltd
17676 430 6508 72 Softbank BB Corp.
9443 369 77 75 Primus Telecommunications
9929 358 189 45 China Netcom Corp.
2907 345 1838 319 SINET Japan
17557 320 23 154 Pakistan Telecom
10036 313 28 284 C&M Communication Co. Ltd.
4808 309 251 169 CNCGROUP IP network: China169
7474 298 268 209 SingTel Optus Pty Ltd
9498 283 82 52 BHARTI BT INTERNET LTD.
4802 279 47 164 Wantree Development
2764 260 238 198 AAPT Limited
703 257 279 211 UUNET - Commercial IP service
17974 243 65 13 PT TELEKOMUNIKASI INDONESIA
9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6515 958 AT&T WorldNet Services
174 1138 5606 970 Cogent Communications
721 1117 21747 312 DLA Systems Automation Center
4323 1103 665 224 Time Warner Telecom
701 1005 8282 858 UUNET Technologies, Inc.
1239 915 2876 662 Sprint
6197 894 380 414 BellSouth Network Solutions,
2386 841 532 623 AT&T Data Communications Serv
18566 792 224 7 Covad Communications
209 652 3459 498 Qwest
20115 608 502 309 Charter Communications
3356 583 10836 437 Level 3 Communications, LLC
3561 541 2361 414 Savvis
852 531 1095 393 Telus Advanced Communications
27364 518 43 18 Armstrong Cable Services
3602 506 122 94 Sprint Canada, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
22773 479 1188 21 Cox Communications, Inc.
6198 460 439 206 BellSouth Network Solutions,
6467 442 143 35 E.Spire Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 2002 485 UUNET - Commercial IP service
3320 304 2993 238 Deutsche Telekom AG
3301 296 1116 286 TeliaNet Sweden
8220 275 472 269 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 227 251 209 Romania Data Systems S.A.
1257 199 727 175 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
6746 164 47 143 Dynamic Network Technologies,
8866 162 21 12 Bulgarian Telecommunication C
719 159 340 101 LANLINK autonomous system
3300 153 184 85 AUCS Communications Services
5400 145 284 129 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 138 513 27 UPC Distribution Services
2856 128 2305 115 BTnet UK Regional network
9051 128 8 34 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 372 598 148 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 212 99 50 Servicios Alestra S.A de C.V
6147 197 102 20 Telefonica Del Peru
19632 190 14 7 Metropolis Intercom S.A.
11664 156 19 23 Keytech SA
7303 147 68 21 Telecom Argentina Stet-France
6505 130 90 87 Global One Communicaoes Ltda
22047 123 96 6 VTR PUNTO NET S.A.
14117 119 8 4 Telefonica del Sur S.A.
11556 110 55 6 Cable-Wireless Panama
18822 105 7 15 TELEFONICA MANQUEHUE
6503 104 146 74 AVANTEL, S.A.
13999 102 52 9 Mega Cable S.A. de C.V.
10481 101 40 7 Prima S.A.
19169 97 6 15 Telconet
23216 89 24 22 RAMtelecom Telecomunicaciones
21826 87 12 20 INTERCABLE
11311 85 8 21 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 635 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 90 16 2 Noor Advanced Technologies AS
2905 75 267 69 The Internetworking Company o
8452 64 20 5 TEDATA
24835 61 34 6 RAYA Telecom - Egypt
9129 43 3 3 UUNET Kenya
12455 42 7 4 Jambonet Autonomous system
5713 35 141 28 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
8524 25 1 4 AUCEGYPT Autonomous System
15475 23 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 18 3 5 LIA Internet Access
2609 17 26 3 Tunisia BackBone AS
12258 17 3 11 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
15808 16 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
4323 1103 879 Time Warner Telecom
721 1117 805 DLA Systems Automation Center
18566 792 785 Covad Communications
4134 903 720 CHINANET-BACKBONE
9583 721 653 Sify Limited
27364 518 500 Armstrong Cable Services
6197 894 480 BellSouth Network Solutions,
5668 488 463 CenturyTel Internet Holdings,
22773 479 458 Cox Communications, Inc.
4755 543 431 Videsh Sanchar Nigam Ltd. Aut
7545 487 417 TPG Internet Pty Ltd
3602 506 412 Sprint Canada, Inc.
6467 442 407 E.Spire Communications, Inc.
17676 430 358 Softbank BB Corp.
6140 399 327 ImpSat
9929 358 313 China Netcom Corp.
4766 584 309 Korea Telecom (KIX)
20115 608 299 Charter Communications
9443 369 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
33772 UNALLOCATED 196.1.53.0/24 11908 Verestar, Inc.
33772 UNALLOCATED 196.1.54.0/24 11908 Verestar, Inc.
33772 UNALLOCATED 196.1.55.0/24 11908 Verestar, Inc.
30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM
33771 UNALLOCATED 196.201.208.0/24 12491 IPPlanet
33771 UNALLOCATED 196.201.208.0/23 12491 IPPlanet
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
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
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
172.122.28.0/24 210 Utah Education Network
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 /8:19 /9:3 /10:8 /11:15 /12:68
/13:152 /14:309 /15:589 /16:8386 /17:2529 /18:4364
/19:10229 /20:11015 /21:8911 /22:12230 /23:13255 /24:87767
/25:288 /26:262 /27:141 /28:75 /29:37 /30:66
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 776 792 Covad Communications
6197 733 894 BellSouth Network Solutions,
7018 666 1482 AT&T WorldNet Services
2386 595 841 AT&T Data Communications Serv
9583 538 721 Sify Limited
4323 516 1103 Time Warner Telecom
27364 506 518 Armstrong Cable Services
5668 406 488 CenturyTel Internet Holdings,
4766 401 584 Korea Telecom (KIX)
1239 383 915 Sprint
702 365 593 UUNET - Commercial IP service
6198 335 460 BellSouth Network Solutions,
6467 322 442 E.Spire Communications, Inc.
10036 313 313 C&M Communication Co. Ltd.
6517 295 318 Yipes Communications, Inc.
7011 295 345 Citizens Utilities
9929 282 358 China Netcom Corp.
11456 274 315 Carolina Online, Inc.
15270 254 274 PaeTec.net -a division of Pae
3320 249 304 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1515 13:1 15:9 16:2
17:3 18:4 20:4 24:874 30:2 32:69
33:4 38:108 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:43 59:23 60:21
61:752 62:587 63:1878 64:2677 65:2078 66:2782
67:550 68:515 69:999 70:92 71:5 72:146
80:559 81:537 82:392 83:241 84:159 85:174
86:2 128:145 129:158 130:89 131:279 132:35
133:1 134:150 135:40 136:191 137:65 138:172
139:55 140:191 141:106 142:139 143:131 144:167
145:32 146:280 147:104 148:290 149:169 150:97
151:63 152:107 153:87 154:5 155:143 156:77
157:93 158:167 159:173 160:75 161:60 162:203
163:84 164:207 165:174 166:154 167:231 168:400
169:139 170:315 171:8 172:2 192:5704 193:3177
194:2335 195:1548 196:654 198:3932 199:3280 200:3983
201:116 202:5531 203:6143 204:3811 205:2025 206:2458
207:2755 208:2086 209:3279 210:1705 211:845 212:1190
213:1283 214:274 215:32 216:3564 217:1143 218:190
219:109 220:363 221:195 222:91
End of report
