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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 162226
Prefixes after maximum aggregation: 94297
Unique aggregates announced to Internet: 78315
Total ASes present in the Internet Routing Table: 19655
Origin-only ASes present in the Internet Routing Table: 17103
Origin ASes announcing only one prefix: 8021
Transit ASes present in the Internet Routing Table: 2552
Transit-only ASes present in the Internet Routing Table: 69
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 33
Number of addresses announced to Internet: 1407688256
Equivalent to 83 /8s, 231 /16s and 158 /24s
Percentage of available address space announced: 38.0
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 76178
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33230
Total APNIC prefixes after maximum aggregation: 15624
Prefixes being announced from the APNIC address blocks: 31170
Unique aggregates announced from the APNIC address blocks: 15854
APNIC Region origin ASes present in the Internet Routing Table: 2264
APNIC Region origin ASes announcing only one prefix: 663
APNIC Region transit ASes present in the Internet Routing Table: 341
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 182971520
Equivalent to 10 /8s, 231 /16s and 236 /24s
Percentage of available APNIC address space announced: 67.9
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: 87982
Total ARIN prefixes after maximum aggregation: 53610
Prefixes being announced from the ARIN address blocks: 68666
Unique aggregates announced from the ARIN address blocks: 25234
ARIN Region origin ASes present in the Internet Routing Table: 9943
ARIN Region origin ASes announcing only one prefix: 3623
ARIN Region transit ASes present in the Internet Routing Table: 940
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 248032000
Equivalent to 14 /8s, 200 /16s and 171 /24s
Percentage of available ARIN address space announced: 70.4
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: 30797
Total RIPE prefixes after maximum aggregation: 21279
Prefixes being announced from the RIPE address blocks: 27832
Unique aggregates announced from the RIPE address blocks: 18578
RIPE Region origin ASes present in the Internet Routing Table: 6640
RIPE Region origin ASes announcing only one prefix: 3504
RIPE Region transit ASes present in the Internet Routing Table: 1109
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 204521920
Equivalent to 12 /8s, 48 /16s and 193 /24s
Percentage of available RIPE address space announced: 71.7
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: 8622
Total LACNIC prefixes after maximum aggregation: 3019
Prefixes being announced from the LACNIC address blocks: 7044
Unique aggregates announced from the LACNIC address blocks: 4087
LACNIC Region origin ASes present in the Internet Routing Table: 619
LACNIC Region origin ASes announcing only one prefix: 195
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: 23
Number of LACNIC addresses announced to Internet: 18754560
Equivalent to 1 /8s, 30 /16s and 44 /24s
Percentage of available LACNIC address space announced: 55.9
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: 1583
Total AfriNIC prefixes after maximum aggregation: 765
Prefixes being announced from the AfriNIC address blocks: 972
Unique aggregates announced from the AfriNIC address blocks: 773
AfriNIC Region origin ASes present in the Internet Routing Table: 124
AfriNIC Region origin ASes announcing only one prefix: 36
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: 2272256
Equivalent to 0 /8s, 34 /16s and 172 /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 907 5137 186 CHINANET-BACKBONE
1221 754 1182 542 Telstra Pty Ltd
9583 734 54 75 Sify Limited
4766 591 3413 279 Korea Telecom (KIX)
4755 590 244 123 Videsh Sanchar Nigam Ltd. Aut
7545 496 88 72 TPG Internet Pty Ltd
17676 431 6509 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 360 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
10036 317 29 286 C&M Communication Co. Ltd.
17557 312 22 149 Pakistan Telecom
4808 310 251 169 CNCGROUP IP network: China169
7474 304 270 209 SingTel Optus Pty Ltd
9498 297 83 59 BHARTI BT INTERNET LTD.
4802 283 48 167 Wantree Development
17974 258 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 277 210 UUNET - Commercial IP service
2764 253 238 198 AAPT Limited
18302 250 75 138 SK Global co., Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1485 6470 953 AT&T WorldNet Services
174 1175 5610 1005 Cogent Communications
721 1112 21755 311 DLA Systems Automation Center
4323 1107 648 218 Time Warner Telecom
701 1008 8233 858 UUNET Technologies, Inc.
6197 904 378 466 BellSouth Network Solutions,
1239 900 2869 652 Sprint
2386 852 533 632 AT&T Data Communications Serv
18566 807 224 7 Covad Communications
209 653 3521 493 Qwest
20115 594 503 312 Charter Communications
3356 573 10817 433 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
3561 534 2400 418 Savvis
852 531 1095 391 Telus Advanced Communications
3602 516 123 99 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 483 1188 21 Cox Communications, Inc.
6198 465 382 219 BellSouth Network Solutions,
7725 450 60 15 MediaOne
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 596 2003 488 UUNET - Commercial IP service
3320 303 3233 237 Deutsche Telekom AG
3301 292 1084 281 TeliaNet Sweden
8220 273 469 267 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 229 252 212 Romania Data Systems S.A.
1257 200 728 176 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 165 47 144 Dynamic Network Technologies,
8866 165 21 11 Bulgarian Telecommunication C
3269 164 1488 69 TELECOM ITALIA
5400 161 285 135 BT Ignite European Backbone
719 159 340 101 LANLINK autonomous system
3300 153 184 86 AUCS Communications Services
25186 138 137 98 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
9051 128 8 34 INCONET Autonomous System
2856 127 2304 115 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 373 598 147 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 217 98 53 Servicios Alestra S.A de C.V
6147 177 102 20 Telefonica Del Peru
11664 156 19 22 Keytech SA
7303 148 68 21 Telecom Argentina Stet-France
14117 136 9 5 Telefonica del Sur S.A.
6505 131 90 88 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
19632 119 14 5 Metropolis Intercom S.A.
11556 111 55 7 Cable-Wireless Panama
13999 110 52 9 Mega Cable S.A. de C.V.
18822 105 7 15 TELEFONICA MANQUEHUE
6503 103 146 73 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 99 6 16 Telconet
21826 92 12 18 INTERCABLE
22927 92 65 22 TELEFONICA DE ARGENTINA
23216 90 24 23 RAMtelecom Telecomunicaciones
11311 89 8 18 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 637 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
20928 93 16 2 Noor Advanced Technologies AS
2018 90 295 86 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
8452 68 28 6 TEDATA
24835 63 34 6 RAYA Telecom - Egypt
9129 44 3 3 UUNET Kenya
12455 39 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
15475 32 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 17 3 5 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
21491 17 1 3 UTL On-line is RF broadband I
33765 17 3 8 TANZANIA TELECOMMUNICATIONS C
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1107 889 Time Warner Telecom
721 1112 801 DLA Systems Automation Center
18566 807 800 Covad Communications
4134 907 721 CHINANET-BACKBONE
9583 734 659 Sify Limited
27364 565 547 Armstrong Cable Services
4755 590 467 Videsh Sanchar Nigam Ltd. Aut
5668 487 462 CenturyTel Internet Holdings,
22773 483 462 Cox Communications, Inc.
6197 904 438 BellSouth Network Solutions,
7725 450 435 MediaOne
7545 496 424 TPG Internet Pty Ltd
3602 516 417 Sprint Canada, Inc.
6467 418 383 E.Spire Communications, Inc.
17676 431 358 Softbank BB Corp.
6140 405 330 ImpSat
9929 360 314 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
6478 417 289 AT&T Worldnet Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.48.0/20 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
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
172.1.0.0/16 12956 Telefonica Data Autonomous Sy
172.2.0.0/16 12956 Telefonica Data Autonomous Sy
172.3.0.0/16 12956 Telefonica Data Autonomous Sy
172.4.0.0/16 12956 Telefonica Data Autonomous Sy
172.5.0.0/16 12956 Telefonica Data Autonomous Sy
172.6.0.0/16 12956 Telefonica Data Autonomous Sy
172.7.0.0/16 12956 Telefonica Data Autonomous Sy
172.8.0.0/16 12956 Telefonica Data Autonomous Sy
172.9.0.0/16 12956 Telefonica Data Autonomous Sy
172.10.0.0/16 12956 Telefonica Data Autonomous Sy
172.11.0.0/16 12956 Telefonica Data Autonomous Sy
172.12.0.0/16 12956 Telefonica Data Autonomous Sy
172.13.0.0/16 12956 Telefonica Data Autonomous Sy
172.14.0.0/16 12956 Telefonica Data Autonomous Sy
172.15.0.0/16 12956 Telefonica Data Autonomous Sy
172.32.0.0/24 7011 Citizens Utilities
172.50.0.0/16 12956 Telefonica Data Autonomous Sy
172.51.0.0/16 12956 Telefonica Data Autonomous Sy
172.52.0.0/16 12956 Telefonica Data Autonomous Sy
172.74.0.0/16 12956 Telefonica Data Autonomous Sy
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 /12:70
/13:155 /14:306 /15:599 /16:8405 /17:2549 /18:4384
/19:10313 /20:11112 /21:9027 /22:12488 /23:13420 /24:88482
/25:281 /26:242 /27:137 /28:65 /29:38 /30:74
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 791 807 Covad Communications
6197 743 904 BellSouth Network Solutions,
7018 679 1485 AT&T WorldNet Services
2386 602 852 AT&T Data Communications Serv
27364 556 565 Armstrong Cable Services
9583 550 734 Sify Limited
4323 524 1107 Time Warner Telecom
7725 423 450 MediaOne
4766 408 591 Korea Telecom (KIX)
5668 402 487 CenturyTel Internet Holdings,
1239 378 900 Sprint
702 368 596 UUNET - Commercial IP service
6198 342 465 BellSouth Network Solutions,
10036 317 317 C&M Communication Co. Ltd.
6467 299 418 E.Spire Communications, Inc.
6517 299 322 Yipes Communications, Inc.
7011 298 348 Citizens Utilities
9929 281 360 China Netcom Corp.
11456 281 322 Carolina Online, Inc.
15270 261 281 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:13 12:1532 13:1 15:9 16:2
17:3 18:4 20:4 24:1126 30:2 32:69
33:4 38:115 40:53 44:3 47:2 52:4
55:2 56:3 57:21 58:50 59:32 60:34
61:798 62:608 63:1880 64:2720 65:2069 66:2869
67:576 68:530 69:1020 70:107 71:6 72:175
80:571 81:546 82:405 83:265 84:185 85:192
86:12 128:149 129:175 130:82 131:280 132:35
133:1 134:149 135:40 136:189 137:65 138:169
139:57 140:191 141:105 142:154 143:141 144:183
145:33 146:282 147:106 148:291 149:165 150:97
151:65 152:106 153:86 154:5 155:143 156:78
157:93 158:161 159:174 160:86 161:64 162:203
163:84 164:207 165:175 166:157 167:232 168:422
169:140 170:316 171:8 172:2 192:5713 193:3179
194:2363 195:1556 196:655 198:3922 199:3279 200:3886
201:131 202:5588 203:6190 204:3821 205:2005 206:2474
207:2789 208:2058 209:3284 210:1691 211:830 212:1144
213:1287 214:264 215:31 216:3442 217:1135 218:198
219:105 220:373 221:216 222:102
End of report
