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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 07 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 167785
Prefixes after maximum aggregation: 96489
Unique aggregates announced to Internet: 81175
Total ASes present in the Internet Routing Table: 20237
Origin-only ASes present in the Internet Routing Table: 17649
Origin ASes announcing only one prefix: 8337
Transit ASes present in the Internet Routing Table: 2588
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: 37
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1400072981
Equivalent to 83 /8s, 115 /16s and 107 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 56.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79613
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34920
Total APNIC prefixes after maximum aggregation: 15731
Prefixes being announced from the APNIC address blocks: 32767
Unique aggregates announced from the APNIC address blocks: 16301
APNIC Region origin ASes present in the Internet Routing Table: 2323
APNIC Region origin ASes announcing only one prefix: 686
APNIC Region transit ASes present in the Internet Routing Table: 343
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 192606592
Equivalent to 11 /8s, 122 /16s and 241 /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: 89659
Total ARIN prefixes after maximum aggregation: 54693
Prefixes being announced from the ARIN address blocks: 70042
Unique aggregates announced from the ARIN address blocks: 25913
ARIN Region origin ASes present in the Internet Routing Table: 10135
ARIN Region origin ASes announcing only one prefix: 3746
ARIN Region transit ASes present in the Internet Routing Table: 946
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 255313173
Equivalent to 15 /8s, 55 /16s and 197 /24s
Percentage of available ARIN address space announced: 63.4
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, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32394
Total RIPE prefixes after maximum aggregation: 22118
Prefixes being announced from the RIPE address blocks: 29415
Unique aggregates announced from the RIPE address blocks: 19776
RIPE Region origin ASes present in the Internet Routing Table: 6952
RIPE Region origin ASes announcing only one prefix: 3673
RIPE Region transit ASes present in the Internet Routing Table: 1131
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 213758848
Equivalent to 12 /8s, 189 /16s and 179 /24s
Percentage of available RIPE address space announced: 63.7
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, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9134
Total LACNIC prefixes after maximum aggregation: 3162
Prefixes being announced from the LACNIC address blocks: 7504
Unique aggregates announced from the LACNIC address blocks: 4414
LACNIC Region origin ASes present in the Internet Routing Table: 628
LACNIC Region origin ASes announcing only one prefix: 195
LACNIC Region transit ASes present in the Internet Routing Table: 117
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 20770560
Equivalent to 1 /8s, 60 /16s and 239 /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: 1651
Total AfriNIC prefixes after maximum aggregation: 785
Prefixes being announced from the AfriNIC address blocks: 1005
Unique aggregates announced from the AfriNIC address blocks: 769
AfriNIC Region origin ASes present in the Internet Routing Table: 133
AfriNIC Region origin ASes announcing only one prefix: 37
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2357504
Equivalent to 0 /8s, 35 /16s and 249 /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 954 5521 192 CHINANET-BACKBONE
1221 767 1327 528 Telstra Pty Ltd
9583 752 77 14 Sify Limited
4755 679 259 65 Videsh Sanchar Nigam Ltd. Aut
4766 590 3412 278 Korea Telecom (KIX)
7545 515 108 72 TPG Internet Pty Ltd
17676 463 6707 98 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9929 344 224 46 China Netcom Corp.
9498 340 83 61 BHARTI BT INTERNET LTD.
2907 338 1789 315 SINET Japan
17557 325 23 156 Pakistan Telecom
7474 315 273 217 SingTel Optus Pty Ltd
17488 305 18 8 Hathway IP Over Cable Interne
4802 299 53 165 Wantree Development
18302 295 109 158 SK Global co., Ltd
9837 278 79 181 Powertel Ltd
17974 271 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 262 206 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 1505 6387 972 AT&T WorldNet Services
4323 1141 704 220 Time Warner Telecom
174 1107 5823 1025 Cogent Communications
721 1080 21759 310 DLA Systems Automation Center
701 1017 8157 862 UUNET Technologies, Inc.
6197 940 497 447 BellSouth Network Solutions,
2386 890 528 655 AT&T Data Communications Serv
1239 871 2863 629 Sprint
18566 833 224 7 Covad Communications
20115 651 499 322 Charter Communications
209 621 3470 489 Qwest
3356 585 10697 448 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 550 125 105 Sprint Canada, Inc.
3561 533 2385 421 Savvis
22773 508 1188 23 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 467 396 224 BellSouth Network Solutions,
7132 450 4689 385 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
702 593 1999 483 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 292 3232 241 Deutsche Telekom AG
8220 262 472 258 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 196 712 174 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 179 49 155 Dynamic Network Technologies,
5400 177 289 149 BT Ignite European Backbone
786 174 1794 174 The JANET IP Service
3269 169 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 163 20 7 Bulgarian Telecommunication C
3300 155 184 89 AUCS Communications Services
9121 153 274 42 TTnet Autonomous System
6830 149 665 32 UPC Distribution Services
25186 143 145 100 France Telecom Transpac's Tra
8551 140 120 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 241 99 59 Servicios Alestra S.A de C.V
6147 192 110 21 Telefonica Del Peru
11664 181 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 144 69 18 Telecom Argentina Stet-France
22047 143 112 7 VTR PUNTO NET S.A.
19632 142 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
19169 119 7 25 Telconet
6503 114 148 75 AVANTEL, S.A.
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
10481 101 40 7 Prima S.A.
21826 101 13 18 INTERCABLE
22927 97 81 26 TELEFONICA DE ARGENTINA
5639 96 12 9 Telecommunications Services o
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 99 32 8 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
20928 56 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
15475 49 84 4 Nile Online
9129 42 3 3 UUNET Kenya
5713 39 148 31 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
23889 20 5 9 MAURITIUS TELECOM
10798 19 1 11 Standard Bank of South Africa
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 1141 921 Time Warner Telecom
18566 833 826 Covad Communications
721 1080 770 DLA Systems Automation Center
4134 954 762 CHINANET-BACKBONE
9583 752 738 Sify Limited
4755 679 614 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 940 493 BellSouth Network Solutions,
22773 508 485 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
3602 550 445 Sprint Canada, Inc.
7545 515 443 TPG Internet Pty Ltd
17676 463 365 Softbank BB Corp.
6467 435 362 E.Spire Communications, Inc.
20115 651 329 Charter Communications
19262 436 320 Verizon Global Networks
4766 590 312 Korea Telecom (KIX)
11492 312 306 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
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.2.0/24 619 Department of Navy
65021 PRIVATE 128.216.3.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
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
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.58.0/23 11664 Keytech SA
64512 PRIVATE 200.80.148.0/23 11664 Keytech SA
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
36050 UNALLOCATED 216.82.176.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.177.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.178.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.179.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.180.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.181.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.182.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.183.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.184.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.185.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.186.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.187.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.188.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.189.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.190.0/24 30023 EnterpriseWise
36050 UNALLOCATED 216.82.191.0/24 30023 EnterpriseWise
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 /11:15 /12:75
/13:167 /14:317 /15:608 /16:8468 /17:2675 /18:4546
/19:10576 /20:11583 /21:9603 /22:13027 /23:13904 /24:91129
/25:375 /26:318 /27:179 /28:50 /29:29 /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 767 940 BellSouth Network Solutions,
7018 709 1505 AT&T WorldNet Services
2386 601 890 AT&T Data Communications Serv
9583 569 752 Sify Limited
27364 545 554 Armstrong Cable Services
4323 541 1141 Time Warner Telecom
4766 408 590 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 365 593 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 362 871 Sprint
6198 342 467 BellSouth Network Solutions,
7011 330 382 Citizens Utilities
11492 304 312 Cable One
6517 296 318 Yipes Communications, Inc.
15270 296 320 PaeTec.net -a division of Pae
6467 289 435 E.Spire Communications, Inc.
20115 283 651 Charter Communications
18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 9:1 12:1556 13:1 15:9
16:2 17:3 18:3 20:4 24:968 30:2
32:70 33:1 38:140 40:55 44:4 47:2
52:4 55:2 56:3 57:23 58:143 59:60
60:104 61:731 62:680 63:1886 64:2815 65:2097
66:2925 67:575 68:571 69:1139 70:153 71:13
72:280 80:594 81:557 82:443 83:294 84:225
85:300 86:74 87:24 128:156 129:168 130:88
131:293 132:38 133:1 134:145 135:42 136:137
137:70 138:165 139:61 140:400 141:105 142:144
143:141 144:194 145:34 146:291 147:110 148:291
149:177 150:106 151:65 152:108 153:89 154:5
155:141 156:77 157:102 158:167 159:168 160:82
161:71 162:219 163:95 164:188 165:192 166:154
167:243 168:436 169:145 170:328 171:8 172:1
190:1 192:5701 193:3243 194:2425 195:1583 196:649
198:3859 199:3293 200:4084 201:225 202:6006 203:6388
204:3779 205:2051 206:2420 207:2822 208:2048 209:3351
210:1638 211:737 212:1254 213:1339 214:273 215:32
216:3626 217:1121 218:212 219:180 220:422 221:237
222:123
End of report
