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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 09 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157661
Prefixes after maximum aggregation: 90601
Unique aggregates announced to Internet: 74378
Total ASes present in the Internet Routing Table: 18951
Origin-only ASes present in the Internet Routing Table: 16474
Origin ASes announcing only one prefix: 7726
Transit ASes present in the Internet Routing Table: 2477
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1373710156
Equivalent to 81 /8s, 225 /16s and 39 /24s
Percentage of available address space announced: 37.1
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 74093
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30951
Total APNIC prefixes after maximum aggregation: 14920
Prefixes being announced from the APNIC address blocks: 29012
Unique aggregates announced from the APNIC address blocks: 14660
APNIC Region origin ASes present in the Internet Routing Table: 2203
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 173693056
Equivalent to 10 /8s, 90 /16s and 88 /24s
Percentage of available APNIC address space announced: 64.5
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: 89187
Total ARIN prefixes after maximum aggregation: 52301
Prefixes being announced from the ARIN address blocks: 68335
Unique aggregates announced from the ARIN address blocks: 24028
ARIN Region origin ASes present in the Internet Routing Table: 9865
ARIN Region origin ASes announcing only one prefix: 3591
ARIN Region transit ASes present in the Internet Routing Table: 953
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 240591616
Equivalent to 14 /8s, 87 /16s and 35 /24s
Percentage of available ARIN address space announced: 71.7
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, 29696-30719, 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: 29345
Total RIPE prefixes after maximum aggregation: 20259
Prefixes being announced from the RIPE address blocks: 26290
Unique aggregates announced from the RIPE address blocks: 17356
RIPE Region origin ASes present in the Internet Routing Table: 6291
RIPE Region origin ASes announcing only one prefix: 3331
RIPE Region transit ASes present in the Internet Routing Table: 1064
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 187369792
Equivalent to 11 /8s, 43 /16s and 9 /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: 6836
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6713
Unique aggregates announced from the LACNIC address blocks: 3997
LACNIC Region origin ASes present in the Internet Routing Table: 420
LACNIC Region origin ASes announcing only one prefix: 128
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17402368
Equivalent to 1 /8s, 9 /16s and 138 /24s
Percentage of available LACNIC address space announced: 51.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1325
Total AfriNIC prefixes after maximum aggregation: 713
Prefixes being announced from the AfriNIC address blocks: 893
Unique aggregates announced from the AfriNIC address blocks: 719
AfriNIC Region origin ASes present in the Internet Routing Table: 95
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: 2176256
Equivalent to 0 /8s, 33 /16s and 53 /24s
Percentage of available AfriNIC address space announced: 13.0
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 4688 172 Data Communications Bureau
1221 786 1184 561 Telstra Pty Ltd
4766 592 3415 282 Korea Internet Exchange for "
9583 582 48 12 Satyam Infoway Ltd.,
4755 458 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 428 86 69 TPG Internet Pty Ltd
17676 394 5916 62 XTAGE CORPORATION
9443 371 77 79 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 325 23 150 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 286 299 208 Optus Communications Pty Ltd
2764 271 254 218 connect.com.au pty ltd
703 268 339 209 UUNET
9800 237 383 75 CHINA UNICOM
4808 236 170 128 CHINANET core WAN North
9498 232 81 53 BHARTI BT INTERNET LTD.
17974 231 63 12 PT TELEKOMUNIKASI INDONESIA
4802 230 28 139 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4323 2243 672 220 Time Warner Telecom
7018 1460 6606 972 AT&T WorldNet Services
721 1133 21803 316 DLA Systems Automation Center
701 1036 8309 883 UUNET Technologies, Inc.
7015 1011 220 20 AT&T Broadband
1239 947 2880 625 Sprint
6197 858 378 402 BellSouth Network Solutions,
2386 814 505 601 AT&T Data Communications Serv
18566 766 208 6 Covad Communications
209 645 3403 497 Qwest
3356 596 10868 445 Level 3 Communications, LLC
3561 584 2370 416 Cable & Wireless USA
20115 577 480 305 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 497 821 99 AT&T Worldnet Services
3602 490 120 91 Sprint Canada, Inc.
22773 470 1090 24 Cox Communications, Inc. Atla
27364 468 44 18 Armstrong Cable Services
6198 457 472 204 BellSouth Network Solutions,
7132 442 8411 382 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 616 2023 508 UUNET - Commercial IP service
3320 295 2992 230 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 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 190 1032 79 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 176 47 142 Dynamic Network Technologies,
3300 169 184 84 AUCS Communications Services
8866 167 19 24 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
719 159 322 105 LANLINK autonomous system
25186 141 138 99 France Telecom Transpac's Tra
5400 140 219 124 BT Ignite European Backbone
9051 127 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 359 140 70 ImpSat
8151 339 499 145 UniNet S.A. de C.V.
16814 233 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 148 19 24 Keytech SA
6505 134 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 118 148 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
14420 88 6 43 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
13999 86 52 9 Mega Cable S.A. de C.V.
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
2905 85 267 77 The Internetworking Company o
20928 84 16 2 Noor Advanced Technologies AS
24835 56 34 6 RAYA Telecom - Egypt
8452 38 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 26 7 4 Jambonet Autonomous system
8524 22 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
15808 14 1 1 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7015 1011 991 AT&T Broadband
721 1133 817 DLA Systems Automation Center
18566 766 760 Covad Communications
4134 883 711 Data Communications Bureau
9583 582 570 Satyam Infoway Ltd.,
7018 1460 488 AT&T WorldNet Services
6197 858 456 BellSouth Network Solutions,
27364 468 450 Armstrong Cable Services
22773 470 446 Cox Communications, Inc. Atla
5668 441 424 Century Telephone
3602 490 399 Sprint Canada, Inc.
6478 497 398 AT&T Worldnet Services
7545 428 359 TPG Internet Pty Ltd
22909 422 358 Comcast Cable Corporation
4755 458 357 Videsh Sanchar Nigam Ltd. Aut
6467 365 334 E.Spire Communications, Inc.
17676 394 332 XTAGE CORPORATION
1239 947 322 Sprint
9929 350 315 China Netcom Corp.
4766 592 310 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 *
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 /14:310 /15:566 /16:8300 /17:2397 /18:4095
/19:10079 /20:10700 /21:8536 /22:11902 /23:13089 /24:86580
/25:296 /26:257 /27:113 /28:49 /29:22 /30:80
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
4323 1231 2243 Time Warner Telecom
7015 974 1011 AT&T Broadband
18566 751 766 Covad Communications
6197 703 858 BellSouth Network Solutions,
7018 628 1460 AT&T WorldNet Services
2386 587 814 AT&T Data Communications Serv
27364 453 468 Armstrong Cable Services
9583 410 582 Satyam Infoway Ltd.,
4766 405 592 Korea Internet Exchange for "
5668 375 441 Century Telephone
702 374 616 UUNET - Commercial IP service
1239 368 947 Sprint
6198 330 457 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 294 336 Choice One Communications Inc
6517 285 307 Yipes Communications, Inc.
6467 277 365 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
701 246 1036 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1483 13:1 15:6 16:2
17:3 18:4 20:4 24:1200 32:68 33:3
38:92 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:1 60:15 61:687 62:513
63:1869 64:2725 65:2136 66:2955 67:498 68:496
69:913 70:59 71:2 72:57 80:561 81:506
82:357 83:266 84:121 85:96 128:142 129:166
130:91 131:195 132:37 133:1 134:142 135:30
136:213 137:67 138:181 139:44 140:195 141:101
142:139 143:122 144:251 145:45 146:282 147:98
148:264 149:162 150:94 151:62 152:110 153:72
154:2 155:137 156:69 157:78 158:149 159:164
160:67 161:59 162:417 163:84 164:212 165:156
166:131 167:226 168:494 169:132 170:314 171:9
192:5683 193:3040 194:2257 195:1565 196:619 198:3867
199:3256 200:3959 201:52 202:5186 203:5974 204:3626
205:2036 206:2431 207:2932 208:2106 209:3227 210:1573
211:781 212:1143 213:1254 214:240 215:31 216:3823
217:1100 218:189 219:117 220:350 221:80 222:76
End of report
