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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 12 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168045
Prefixes after maximum aggregation: 96660
Unique aggregates announced to Internet: 81442
Total ASes present in the Internet Routing Table: 20275
Origin-only ASes present in the Internet Routing Table: 17677
Origin ASes announcing only one prefix: 8355
Transit ASes present in the Internet Routing Table: 2598
Transit-only ASes present in the Internet Routing Table: 74
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: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1403109781
Equivalent to 83 /8s, 161 /16s and 193 /24s
Percentage of available address space announced: 37.9
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79702
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34882
Total APNIC prefixes after maximum aggregation: 15768
Prefixes being announced from the APNIC address blocks: 32730
Unique aggregates announced from the APNIC address blocks: 16455
APNIC Region origin ASes present in the Internet Routing Table: 2331
APNIC Region origin ASes announcing only one prefix: 691
APNIC Region transit ASes present in the Internet Routing Table: 345
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 192740736
Equivalent to 11 /8s, 124 /16s and 253 /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: 89842
Total ARIN prefixes after maximum aggregation: 54761
Prefixes being announced from the ARIN address blocks: 70221
Unique aggregates announced from the ARIN address blocks: 25988
ARIN Region origin ASes present in the Internet Routing Table: 10138
ARIN Region origin ASes announcing only one prefix: 3747
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: 20
Number of ARIN addresses announced to Internet: 256965653
Equivalent to 15 /8s, 80 /16s and 252 /24s
Percentage of available ARIN address space announced: 63.8
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, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32440
Total RIPE prefixes after maximum aggregation: 22173
Prefixes being announced from the RIPE address blocks: 29433
Unique aggregates announced from the RIPE address blocks: 19823
RIPE Region origin ASes present in the Internet Routing Table: 6974
RIPE Region origin ASes announcing only one prefix: 3683
RIPE Region transit ASes present in the Internet Routing Table: 1143
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 214888704
Equivalent to 12 /8s, 206 /16s and 241 /24s
Percentage of available RIPE address space announced: 64.0
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: 9208
Total LACNIC prefixes after maximum aggregation: 3171
Prefixes being announced from the LACNIC address blocks: 7566
Unique aggregates announced from the LACNIC address blocks: 4393
LACNIC Region origin ASes present in the Internet Routing Table: 631
LACNIC Region origin ASes announcing only one prefix: 196
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: 20803072
Equivalent to 1 /8s, 61 /16s and 110 /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: 787
Prefixes being announced from the AfriNIC address blocks: 1011
Unique aggregates announced from the AfriNIC address blocks: 772
AfriNIC Region origin ASes present in the Internet Routing Table: 134
AfriNIC Region origin ASes announcing only one prefix: 38
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: 2358272
Equivalent to 0 /8s, 35 /16s and 252 /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 957 5524 194 CHINANET-BACKBONE
1221 769 1327 527 Telstra Pty Ltd
9583 750 77 14 Sify Limited
4755 680 259 65 Videsh Sanchar Nigam Ltd. Aut
4766 593 3413 279 Korea Telecom (KIX)
7545 515 108 72 TPG Internet Pty Ltd
17676 464 6723 99 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9929 344 224 46 China Netcom Corp.
9498 339 83 61 BHARTI BT INTERNET LTD.
2907 338 1789 315 SINET Japan
17557 327 23 153 Pakistan Telecom
7474 317 273 218 SingTel Optus Pty Ltd
4802 300 53 164 Wantree Development
17488 297 17 18 Hathway IP Over Cable Interne
18302 294 109 157 SK Global co., Ltd
9837 277 79 180 Powertel Ltd
17974 272 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 262 207 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 1508 6404 977 AT&T WorldNet Services
4323 1147 704 221 Time Warner Telecom
174 1129 5821 1039 Cogent Communications
721 1082 21779 312 DLA Systems Automation Center
701 1008 8155 857 UUNET Technologies, Inc.
6197 939 497 451 BellSouth Network Solutions,
2386 889 528 653 AT&T Data Communications Serv
1239 869 2863 627 Sprint
18566 833 224 7 Covad Communications
20115 654 502 324 Charter Communications
209 617 3470 488 Qwest
3356 584 10697 446 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 550 125 106 Sprint Canada, Inc.
3561 535 2385 422 Savvis
22773 513 1349 25 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 468 396 224 BellSouth Network Solutions,
7132 451 4819 386 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
702 591 1999 482 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 291 3232 240 Deutsche Telekom AG
8220 262 474 259 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 197 712 175 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 179 49 155 Dynamic Network Technologies,
5400 176 289 149 BT Ignite European Backbone
786 174 1794 174 The JANET IP Service
719 169 340 100 LANLINK autonomous system
3269 169 1518 71 TELECOM ITALIA
8866 163 20 7 Bulgarian Telecommunication C
9121 159 276 43 TTnet Autonomous System
3300 155 184 89 AUCS Communications Services
6830 155 665 32 UPC Distribution Services
25186 144 145 101 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 242 99 59 Servicios Alestra S.A de C.V
6147 192 110 21 Telefonica Del Peru
11664 184 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 145 69 16 Telecom Argentina Stet-France
19632 143 14 5 Metropolis Intercom S.A.
22047 143 112 7 VTR PUNTO NET S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
19169 120 8 26 Telconet
6503 114 147 75 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
5639 101 12 9 Telecommunications Services o
10481 101 40 7 Prima S.A.
11311 97 8 14 Sinectis S.A.
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 102 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
24835 57 34 6 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
15475 47 84 4 Nile Online
9129 42 3 3 UUNET Kenya
5713 40 148 31 Telkom SA Ltd
12455 37 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 24 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 1147 926 Time Warner Telecom
18566 833 826 Covad Communications
721 1082 770 DLA Systems Automation Center
4134 957 763 CHINANET-BACKBONE
9583 750 736 Sify Limited
4755 680 615 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 939 488 BellSouth Network Solutions,
22773 513 488 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
3602 550 444 Sprint Canada, Inc.
7545 515 443 TPG Internet Pty Ltd
17676 464 365 Softbank BB Corp.
6467 434 361 E.Spire Communications, Inc.
20115 654 330 Charter Communications
19262 443 324 Verizon Global Networks
4766 593 314 Korea Telecom (KIX)
11492 315 309 Cable One
9443 382 305 Primus Telecommunications
9929 344 298 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
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65511 PRIVATE 65.77.146.0/24 16605 Aaro Broadband Wirel
65511 PRIVATE 65.77.147.0/24 16605 Aaro Broadband Wirel
65511 PRIVATE 65.77.151.0/24 16605 Aaro Broadband Wirel
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
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
36005 UNALLOCATED 207.37.208.0/24 5388 Energis Squared
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
/13:168 /14:319 /15:607 /16:8473 /17:2681 /18:4560
/19:10586 /20:11606 /21:9633 /22:13050 /23:13948 /24:91253
/25:357 /26:316 /27:180 /28:50 /29:27 /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 766 939 BellSouth Network Solutions,
7018 710 1508 AT&T WorldNet Services
2386 600 889 AT&T Data Communications Serv
9583 567 750 Sify Limited
4323 547 1147 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 411 593 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 364 591 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 361 869 Sprint
6198 343 468 BellSouth Network Solutions,
7011 333 385 Citizens Utilities
11492 307 315 Cable One
6517 299 321 Yipes Communications, Inc.
15270 298 322 PaeTec.net -a division of Pae
6467 288 434 E.Spire Communications, Inc.
20115 284 654 Charter Communications
18302 279 294 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 12:1558 13:1 15:9 16:2
17:3 18:3 20:5 24:974 30:2 32:70
33:1 38:140 40:55 44:4 47:2 52:4
55:2 56:3 57:23 58:149 59:59 60:106
61:730 62:680 63:1886 64:2824 65:2111 66:2931
67:584 68:572 69:1143 70:157 71:13 72:300
80:600 81:555 82:446 83:291 84:227 85:300
86:80 87:24 128:153 129:168 130:88 131:299
132:38 133:1 134:145 135:42 136:149 137:69
138:161 139:61 140:401 141:105 142:145 143:140
144:194 145:34 146:291 147:110 148:293 149:177
150:107 151:63 152:108 153:89 154:5 155:141
156:76 157:99 158:167 159:168 160:82 161:71
162:218 163:96 164:189 165:193 166:153 167:245
168:436 169:145 170:312 171:8 172:1 190:1
192:5743 193:3243 194:2425 195:1581 196:653 198:3878
199:3284 200:4112 201:238 202:5994 203:6385 204:3786
205:2035 206:2453 207:2830 208:2054 209:3350 210:1637
211:746 212:1229 213:1309 214:265 215:35 216:3618
217:1111 218:212 219:168 220:421 221:237 222:125
End of report
