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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 161484
Prefixes after maximum aggregation: 93901
Unique aggregates announced to Internet: 77839
Total ASes present in the Internet Routing Table: 19585
Origin-only ASes present in the Internet Routing Table: 17040
Origin ASes announcing only one prefix: 7991
Transit ASes present in the Internet Routing Table: 2545
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: 29
Prefixes from unregistered ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1404787008
Equivalent to 83 /8s, 187 /16s and 89 /24s
Percentage of available address space announced: 37.9
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 75655
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33033
Total APNIC prefixes after maximum aggregation: 15542
Prefixes being announced from the APNIC address blocks: 30964
Unique aggregates announced from the APNIC address blocks: 15711
APNIC Region origin ASes present in the Internet Routing Table: 2261
APNIC Region origin ASes announcing only one prefix: 661
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: 182706560
Equivalent to 10 /8s, 227 /16s and 225 /24s
Percentage of available APNIC address space announced: 67.8
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: 87635
Total ARIN prefixes after maximum aggregation: 53421
Prefixes being announced from the ARIN address blocks: 68434
Unique aggregates announced from the ARIN address blocks: 25114
ARIN Region origin ASes present in the Internet Routing Table: 9907
ARIN Region origin ASes announcing only one prefix: 3609
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 247683840
Equivalent to 14 /8s, 195 /16s and 91 /24s
Percentage of available ARIN address space announced: 70.3
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30607
Total RIPE prefixes after maximum aggregation: 21158
Prefixes being announced from the RIPE address blocks: 27676
Unique aggregates announced from the RIPE address blocks: 18461
RIPE Region origin ASes present in the Internet Routing Table: 6615
RIPE Region origin ASes announcing only one prefix: 3491
RIPE Region transit ASes present in the Internet Routing Table: 1108
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 203490240
Equivalent to 12 /8s, 33 /16s and 3 /24s
Percentage of available RIPE address space announced: 71.3
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: 8634
Total LACNIC prefixes after maximum aggregation: 3017
Prefixes being announced from the LACNIC address blocks: 7053
Unique aggregates announced from the LACNIC address blocks: 4078
LACNIC Region origin ASes present in the Internet Routing Table: 614
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: 18605056
Equivalent to 1 /8s, 27 /16s and 228 /24s
Percentage of available LACNIC address space announced: 55.4
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: 1555
Total AfriNIC prefixes after maximum aggregation: 763
Prefixes being announced from the AfriNIC address blocks: 942
Unique aggregates announced from the AfriNIC address blocks: 747
AfriNIC Region origin ASes present in the Internet Routing Table: 123
AfriNIC Region origin ASes announcing only one prefix: 35
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: 2228224
Equivalent to 0 /8s, 34 /16s and 0 /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 897 5035 183 CHINANET-BACKBONE
1221 775 1189 549 Telstra Pty Ltd
9583 732 53 75 Sify Limited
4755 589 244 124 Videsh Sanchar Nigam Ltd. Aut
4766 586 3413 277 Korea Telecom (KIX)
7545 495 86 72 TPG Internet Pty Ltd
17676 431 6509 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 361 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
17557 318 23 153 Pakistan Telecom
10036 313 28 284 C&M Communication Co. Ltd.
4808 309 251 169 CNCGROUP IP network: China169
7474 299 268 208 SingTel Optus Pty Ltd
9498 293 83 59 BHARTI BT INTERNET LTD.
4802 279 47 164 Wantree Development
703 257 279 212 UUNET - Commercial IP service
2764 252 238 197 AAPT Limited
17974 244 65 14 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 1484 6502 959 AT&T WorldNet Services
174 1182 5612 1011 Cogent Communications
721 1117 21763 313 DLA Systems Automation Center
4323 1107 664 221 Time Warner Telecom
701 1009 8250 859 UUNET Technologies, Inc.
1239 904 2869 655 Sprint
6197 903 370 454 BellSouth Network Solutions,
2386 851 532 630 AT&T Data Communications Serv
18566 801 224 7 Covad Communications
209 652 3456 493 Qwest
20115 596 505 308 Charter Communications
3356 586 10837 441 Level 3 Communications, LLC
3561 543 2360 416 Savvis
27364 539 43 18 Armstrong Cable Services
852 531 1095 392 Telus Advanced Communications
3602 508 122 95 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 483 1188 21 Cox Communications, Inc.
6198 464 382 219 BellSouth Network Solutions,
7132 445 8798 379 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2003 486 UUNET - Commercial IP service
3320 303 3249 237 Deutsche Telekom AG
3301 296 1116 286 TeliaNet Sweden
8220 274 469 268 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 226 252 210 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
3269 168 1488 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 151 184 84 AUCS Communications Services
5400 144 284 128 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
2856 129 2305 116 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 374 598 148 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 224 99 54 Servicios Alestra S.A de C.V
6147 197 102 20 Telefonica Del Peru
11664 155 19 22 Keytech SA
7303 148 68 21 Telecom Argentina Stet-France
14117 135 8 4 Telefonica del Sur S.A.
22047 132 96 6 VTR PUNTO NET S.A.
6505 130 90 87 Global One Communicaoes Ltda
13999 112 52 9 Mega Cable S.A. de C.V.
11556 111 55 7 Cable-Wireless Panama
18822 105 7 15 TELEFONICA MANQUEHUE
6503 102 146 73 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 99 6 16 Telconet
19632 93 14 5 Metropolis Intercom S.A.
21826 90 12 18 INTERCABLE
11311 89 8 18 Sinectis S.A.
22927 89 65 21 TELEFONICA DE ARGENTINA
23216 88 24 23 RAMtelecom Telecomunicaciones
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
2018 91 295 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 60 34 6 RAYA Telecom - Egypt
9129 45 3 3 UUNET Kenya
12455 41 6 3 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 24 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
33765 19 3 8 TANZANIA TELECOMMUNICATIONS C
7460 18 3 5 LIA Internet Access
2609 17 26 3 Tunisia BackBone AS
12258 17 3 11 Vodacom Internet Company
21491 17 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1107 886 Time Warner Telecom
721 1117 804 DLA Systems Automation Center
18566 801 794 Covad Communications
4134 897 714 CHINANET-BACKBONE
9583 732 657 Sify Limited
27364 539 521 Armstrong Cable Services
4755 589 465 Videsh Sanchar Nigam Ltd. Aut
5668 487 462 CenturyTel Internet Holdings,
22773 483 462 Cox Communications, Inc.
6197 903 449 BellSouth Network Solutions,
7545 495 423 TPG Internet Pty Ltd
3602 508 413 Sprint Canada, Inc.
7725 415 400 MediaOne
6467 430 395 E.Spire Communications, Inc.
17676 431 358 Softbank BB Corp.
6140 398 326 ImpSat
9929 361 315 China Netcom Corp.
4766 586 309 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
6478 416 293 AT&T Worldnet Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65424 PRIVATE 66.225.194.0/24 23352 Server Central Netwo
65424 PRIVATE 66.225.194.0/23 23352 Server Central Netwo
65424 PRIVATE 66.225.195.0/24 23352 Server Central Netwo
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
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
172.32.0.0/24 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 /12:69
/13:154 /14:308 /15:585 /16:8378 /17:2537 /18:4374
/19:10264 /20:11107 /21:8980 /22:12405 /23:13364 /24:88043
/25:273 /26:245 /27:138 /28:76 /29:38 /30:70
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 785 801 Covad Communications
6197 742 903 BellSouth Network Solutions,
7018 674 1484 AT&T WorldNet Services
2386 604 851 AT&T Data Communications Serv
9583 548 732 Sify Limited
27364 528 539 Armstrong Cable Services
4323 520 1107 Time Warner Telecom
5668 404 487 CenturyTel Internet Holdings,
4766 403 586 Korea Telecom (KIX)
7725 388 415 MediaOne
1239 378 904 Sprint
702 366 594 UUNET - Commercial IP service
6198 341 464 BellSouth Network Solutions,
10036 313 313 C&M Communication Co. Ltd.
6467 309 430 E.Spire Communications, Inc.
6517 297 320 Yipes Communications, Inc.
7011 297 347 Citizens Utilities
9929 282 361 China Netcom Corp.
11456 276 318 Carolina Online, Inc.
15270 259 279 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1534 13:1 15:9 16:2
17:3 18:4 20:4 24:1070 30:2 32:69
33:4 38:113 40:53 44:3 47:2 52:4
55:2 56:3 57:23 58:42 59:28 60:22
61:788 62:599 63:1874 64:2696 65:2069 66:2814
67:575 68:525 69:1003 70:99 71:6 72:171
80:563 81:544 82:391 83:254 84:166 85:191
86:8 128:144 129:158 130:85 131:278 132:34
133:1 134:148 135:40 136:189 137:66 138:171
139:52 140:192 141:105 142:148 143:133 144:167
145:33 146:280 147:105 148:294 149:167 150:97
151:65 152:106 153:86 154:5 155:144 156:77
157:91 158:161 159:174 160:77 161:64 162:203
163:83 164:207 165:175 166:155 167:233 168:421
169:139 170:312 171:8 172:2 192:5700 193:3172
194:2344 195:1551 196:649 198:3943 199:3280 200:3911
201:124 202:5555 203:6147 204:3821 205:2021 206:2474
207:2755 208:2047 209:3270 210:1693 211:834 212:1143
213:1283 214:265 215:33 216:3500 217:1130 218:192
219:106 220:377 221:208 222:91
End of report
