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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155872
Prefixes after maximum aggregation: 90452
Unique aggregates announced to Internet: 74338
Total ASes present in the Internet Routing Table: 18908
Origin-only ASes present in the Internet Routing Table: 16431
Origin ASes announcing only one prefix: 7716
Transit ASes present in the Internet Routing Table: 2477
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1372210732
Equivalent to 81 /8s, 202 /16s and 70 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72921
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30914
Total APNIC prefixes after maximum aggregation: 14890
Prefixes being announced from the APNIC address blocks: 28944
Unique aggregates announced from the APNIC address blocks: 14628
APNIC Region origin ASes present in the Internet Routing Table: 2198
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 172678016
Equivalent to 10 /8s, 74 /16s and 219 /24s
Percentage of available APNIC address space announced: 64.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
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: 87521
Total ARIN prefixes after maximum aggregation: 52233
Prefixes being announced from the ARIN address blocks: 66826
Unique aggregates announced from the ARIN address blocks: 24031
ARIN Region origin ASes present in the Internet Routing Table: 9844
ARIN Region origin ASes announcing only one prefix: 3589
ARIN Region transit ASes present in the Internet Routing Table: 961
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240365056
Equivalent to 14 /8s, 83 /16s and 174 /24s
Percentage of available ARIN address space announced: 71.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 29277
Total RIPE prefixes after maximum aggregation: 20225
Prefixes being announced from the RIPE address blocks: 26229
Unique aggregates announced from the RIPE address blocks: 17319
RIPE Region origin ASes present in the Internet Routing Table: 6282
RIPE Region origin ASes announcing only one prefix: 3333
RIPE Region transit ASes present in the Internet Routing Table: 1063
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187351872
Equivalent to 11 /8s, 42 /16s and 195 /24s
Percentage of available RIPE address space announced: 65.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
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: 6820
Total LACNIC prefixes after maximum aggregation: 2390
Prefixes being announced from the LACNIC address blocks: 6702
Unique aggregates announced from the LACNIC address blocks: 4039
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 123
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17276416
Equivalent to 1 /8s, 7 /16s and 158 /24s
Percentage of available LACNIC address space announced: 51.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1322
Total AfriNIC prefixes after maximum aggregation: 714
Prefixes being announced from the AfriNIC address blocks: 882
Unique aggregates announced from the AfriNIC address blocks: 679
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2111232
Equivalent to 0 /8s, 32 /16s and 55 /24s
Percentage of available AfriNIC address space announced: 12.6
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 883 4624 171 Data Communications Bureau
1221 787 1184 562 Telstra Pty Ltd
4766 583 3414 281 Korea Internet Exchange for "
9583 582 48 12 Satyam Infoway Ltd.,
4755 457 178 102 Videsh Sanchar Nigam Ltd. Aut
7545 393 86 69 TPG Internet Pty Ltd
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
9929 351 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 324 23 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 279 296 207 Optus Communications Pty Ltd
703 271 340 212 UUNET
2764 271 254 218 connect.com.au pty ltd
9800 237 383 75 CHINA UNICOM
4808 234 170 128 CHINANET core WAN North
9498 232 81 53 BHARTI BT INTERNET LTD.
4802 230 28 139 Wantree Development
17974 230 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1467 6607 978 AT&T WorldNet Services
721 1128 21803 315 DLA Systems Automation Center
701 1065 8336 909 UUNET Technologies, Inc.
7015 963 212 22 AT&T Broadband
1239 944 2880 622 Sprint
6197 857 378 402 BellSouth Network Solutions,
4323 844 672 218 Time Warner Telecom
2386 813 505 601 AT&T Data Communications Serv
18566 769 208 6 Covad Communications
209 647 3404 499 Qwest
3356 594 10867 443 Level 3 Communications, LLC
3561 584 2370 416 Cable & Wireless USA
20115 571 476 304 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 503 821 97 AT&T Worldnet Services
3602 492 120 93 Sprint Canada, Inc.
22773 468 1090 24 Cox Communications, Inc. Atla
27364 460 44 19 Armstrong Cable Services
6198 455 498 199 BellSouth Network Solutions,
7132 441 8395 381 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 617 2023 509 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 276 466 269 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 223 471 218 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 213 119 194 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
3215 188 1032 78 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 179 47 144 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 168 19 24 Bulgarian Telecommunication C
3300 162 166 82 AUCS Communications Services
3269 161 1392 71 TELECOM ITALIA
719 159 322 105 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 140 219 124 BT Ignite European Backbone
3303 129 577 124 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 359 140 70 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
7303 149 68 22 Telecom Argentina Stet-France
11664 146 19 24 Keytech SA
6505 135 90 92 Global One Communicaoes Ltda
6503 118 147 82 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 15 17 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 76 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 38 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 14 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7015 963 941 AT&T Broadband
721 1128 813 DLA Systems Automation Center
18566 769 763 Covad Communications
4134 883 712 Data Communications Bureau
4323 844 626 Time Warner Telecom
9583 582 570 Satyam Infoway Ltd.,
6197 857 455 BellSouth Network Solutions,
22773 468 444 Cox Communications, Inc. Atla
27364 460 441 Armstrong Cable Services
5668 433 416 Century Telephone
6478 503 406 AT&T Worldnet Services
3602 492 399 Sprint Canada, Inc.
22909 422 358 Comcast Cable Corporation
4755 457 355 Videsh Sanchar Nigam Ltd. Aut
17676 393 332 XTAGE CORPORATION
6467 359 328 E.Spire Communications, Inc.
7545 393 324 TPG Internet Pty Ltd
1239 944 322 Sprint
9929 351 316 China Netcom Corp.
4766 583 302 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
65004 PRIVATE 200.0.113.0/24 28477 *
65004 PRIVATE 200.4.0.0/24 28477 *
65004 PRIVATE 200.4.1.0/24 28477 *
65004 PRIVATE 200.4.2.0/24 28477 *
65004 PRIVATE 200.4.3.0/24 28477 *
65004 PRIVATE 200.4.4.0/24 28477 *
65004 PRIVATE 200.4.5.0/24 28477 *
65004 PRIVATE 200.4.6.0/24 28477 *
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
172.215.0.0/16 1668 GNN Hosting Service
172.216.0.0/16 1668 GNN Hosting Service
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 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 /10:7 /11:14 /12:62
/13:146 /14:309 /15:564 /16:8290 /17:2388 /18:4079
/19:10056 /20:10660 /21:8488 /22:11831 /23:12975 /24:85086
/25:297 /26:260 /27:116 /28:56 /29:22 /30:102
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7015 926 963 AT&T Broadband
18566 754 769 Covad Communications
6197 702 857 BellSouth Network Solutions,
7018 631 1467 AT&T WorldNet Services
2386 586 813 AT&T Data Communications Serv
27364 445 460 Armstrong Cable Services
9583 410 582 Satyam Infoway Ltd.,
4766 399 583 Korea Internet Exchange for "
702 375 617 UUNET - Commercial IP service
5668 373 433 Century Telephone
1239 369 944 Sprint
6198 326 455 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 335 Choice One Communications Inc
4323 290 844 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
9929 276 351 China Netcom Corp.
6467 271 359 E.Spire Communications, Inc.
701 266 1065 UUNET Technologies, Inc.
11456 263 310 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1481 13:1 15:6 16:2
17:3 18:4 20:4 24:1168 32:68 33:3
38:91 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:680 62:517
63:1860 64:2586 65:2136 66:2597 67:492 68:495
69:905 70:56 71:2 72:50 80:561 81:503
82:361 83:243 84:122 85:92 128:130 129:166
130:90 131:194 132:37 134:142 135:30 136:213
137:67 138:181 139:47 140:192 141:101 142:139
143:121 144:250 145:45 146:282 147:98 148:262
149:162 150:94 151:62 152:111 153:72 154:2
155:136 156:69 157:76 158:149 159:164 160:65
161:59 162:413 163:85 164:213 165:157 166:127
167:225 168:387 169:131 170:314 171:8 192:5681
193:3042 194:2251 195:1566 196:610 198:3851 199:3250
200:3962 201:50 202:5180 203:5960 204:3602 205:2030
206:2312 207:2661 208:2100 209:3071 210:1577 211:780
212:1149 213:1265 214:240 215:31 216:3695 217:1090
218:188 219:118 220:345 221:79 222:75
End of report
