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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 14 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168107
Prefixes after maximum aggregation: 96678
Unique aggregates announced to Internet: 81528
Total ASes present in the Internet Routing Table: 20272
Origin-only ASes present in the Internet Routing Table: 17667
Origin ASes announcing only one prefix: 8347
Transit ASes present in the Internet Routing Table: 2605
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: 12
Number of addresses announced to Internet: 1403539989
Equivalent to 83 /8s, 168 /16s and 82 /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: 79705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34952
Total APNIC prefixes after maximum aggregation: 15769
Prefixes being announced from the APNIC address blocks: 32815
Unique aggregates announced from the APNIC address blocks: 16467
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: 346
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 192813696
Equivalent to 11 /8s, 126 /16s and 26 /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: 89789
Total ARIN prefixes after maximum aggregation: 54778
Prefixes being announced from the ARIN address blocks: 70173
Unique aggregates announced from the ARIN address blocks: 26056
ARIN Region origin ASes present in the Internet Routing Table: 10131
ARIN Region origin ASes announcing only one prefix: 3733
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: 257603861
Equivalent to 15 /8s, 90 /16s and 185 /24s
Percentage of available ARIN address space announced: 64.0
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, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32489
Total RIPE prefixes after maximum aggregation: 22181
Prefixes being announced from the RIPE address blocks: 29476
Unique aggregates announced from the RIPE address blocks: 19829
RIPE Region origin ASes present in the Internet Routing Table: 6979
RIPE Region origin ASes announcing only one prefix: 3687
RIPE Region transit ASes present in the Internet Routing Table: 1149
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 214964864
Equivalent to 12 /8s, 208 /16s and 26 /24s
Percentage of available RIPE address space announced: 64.1
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: 9201
Total LACNIC prefixes after maximum aggregation: 3166
Prefixes being announced from the LACNIC address blocks: 7567
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: 198
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: 20833536
Equivalent to 1 /8s, 61 /16s and 229 /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: 784
Prefixes being announced from the AfriNIC address blocks: 1014
Unique aggregates announced from the AfriNIC address blocks: 778
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: 2358528
Equivalent to 0 /8s, 35 /16s and 253 /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 751 77 14 Sify Limited
4755 669 259 65 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 281 Korea Telecom (KIX)
7545 515 108 72 TPG Internet Pty Ltd
17676 464 6723 99 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9498 338 83 61 BHARTI BT INTERNET LTD.
2907 337 1789 314 SINET Japan
9929 337 224 46 China Netcom Corp.
17557 326 23 153 Pakistan Telecom
7474 317 273 218 SingTel Optus Pty Ltd
17488 299 18 19 Hathway IP Over Cable Interne
4802 295 53 159 Wantree Development
18302 293 93 157 SK Global co., Ltd
9837 276 79 179 Powertel Ltd
17974 272 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 262 207 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 1509 6408 978 AT&T WorldNet Services
4323 1146 704 221 Time Warner Telecom
174 1125 5821 1035 Cogent Communications
721 1084 21793 312 DLA Systems Automation Center
701 1005 8154 855 UUNET Technologies, Inc.
6197 940 497 448 BellSouth Network Solutions,
2386 894 528 657 AT&T Data Communications Serv
1239 866 2863 627 Sprint
18566 834 224 7 Covad Communications
20115 653 502 325 Charter Communications
209 617 3470 488 Qwest
3356 581 10695 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 550 125 106 Sprint Canada, Inc.
3561 534 2416 423 Savvis
22773 514 1349 25 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 468 396 224 BellSouth Network Solutions,
7132 452 4947 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 263 474 259 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
5400 179 289 151 BT Ignite European Backbone
6746 179 49 155 Dynamic Network Technologies,
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 161 276 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 183 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 113 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 94 24 19 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 123 16 14 Internet Egypt Network
8452 103 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 1146 925 Time Warner Telecom
18566 834 827 Covad Communications
721 1084 772 DLA Systems Automation Center
4134 957 763 CHINANET-BACKBONE
9583 751 737 Sify Limited
4755 669 604 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 940 492 BellSouth Network Solutions,
22773 514 489 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 436 363 E.Spire Communications, Inc.
20115 653 328 Charter Communications
19262 443 324 Verizon Global Networks
4766 595 314 Korea Telecom (KIX)
11492 315 309 Cable One
9443 382 305 Primus Telecommunications
6140 415 293 ImpSat
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
65535 PRIVATE 168.96.250.0/27 3597 Asociacion Civil Cie
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
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
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
/13:169 /14:319 /15:607 /16:8471 /17:2680 /18:4560
/19:10596 /20:11608 /21:9648 /22:13066 /23:13943 /24:91288
/25:355 /26:314 /27:175 /28:50 /29:27 /30:77
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 818 834 Covad Communications
6197 767 940 BellSouth Network Solutions,
7018 713 1509 AT&T WorldNet Services
2386 603 894 AT&T Data Communications Serv
9583 568 751 Sify Limited
4323 547 1146 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 413 595 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 364 591 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 359 866 Sprint
6198 343 468 BellSouth Network Solutions,
7011 332 383 Citizens Utilities
11492 307 315 Cable One
6517 299 321 Yipes Communications, Inc.
15270 298 322 PaeTec.net -a division of Pae
6467 290 436 E.Spire Communications, Inc.
20115 283 653 Charter Communications
18302 279 293 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 11:1 12:1557 13:1 15:9
16:2 17:3 18:3 20:5 24:961 30:2
32:70 33:1 38:141 40:56 44:4 47:2
52:4 55:2 56:3 57:23 58:149 59:60
60:108 61:733 62:688 63:1883 64:2836 65:2075
66:2895 67:582 68:572 69:1135 70:164 71:13
72:315 80:590 81:557 82:450 83:292 84:232
85:297 86:80 87:25 128:154 129:165 130:88
131:299 132:38 133:1 134:144 135:42 136:149
137:68 138:162 139:61 140:402 141:105 142:144
143:140 144:193 145:34 146:292 147:110 148:287
149:175 150:107 151:63 152:108 153:89 154:5
155:141 156:76 157:99 158:164 159:167 160:82
161:72 162:219 163:96 164:188 165:192 166:154
167:245 168:436 169:145 170:308 171:8 190:1
192:5739 193:3243 194:2420 195:1582 196:656 198:3877
199:3278 200:4114 201:239 202:5993 203:6403 204:3786
205:2038 206:2457 207:2833 208:2054 209:3355 210:1647
211:747 212:1259 213:1308 214:288 215:35 216:3623
217:1112 218:214 219:163 220:433 221:237 222:126
End of report
