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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 06 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156138
Prefixes after maximum aggregation: 90533
Unique aggregates announced to Internet: 74365
Total ASes present in the Internet Routing Table: 18918
Origin-only ASes present in the Internet Routing Table: 16437
Origin ASes announcing only one prefix: 7712
Transit ASes present in the Internet Routing Table: 2481
Transit-only ASes present in the Internet Routing Table: 83
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: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1373091912
Equivalent to 81 /8s, 215 /16s and 184 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73189
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30871
Total APNIC prefixes after maximum aggregation: 14884
Prefixes being announced from the APNIC address blocks: 28953
Unique aggregates announced from the APNIC address blocks: 14635
APNIC Region origin ASes present in the Internet Routing Table: 2194
APNIC Region origin ASes announcing only one prefix: 644
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: 173618560
Equivalent to 10 /8s, 89 /16s and 53 /24s
Percentage of available APNIC address space announced: 64.4
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: 87819
Total ARIN prefixes after maximum aggregation: 52292
Prefixes being announced from the ARIN address blocks: 67099
Unique aggregates announced from the ARIN address blocks: 24040
ARIN Region origin ASes present in the Internet Routing Table: 9853
ARIN Region origin ASes announcing only one prefix: 3592
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240480256
Equivalent to 14 /8s, 85 /16s and 112 /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: 29296
Total RIPE prefixes after maximum aggregation: 20239
Prefixes being announced from the RIPE address blocks: 26253
Unique aggregates announced from the RIPE address blocks: 17351
RIPE Region origin ASes present in the Internet Routing Table: 6279
RIPE Region origin ASes announcing only one prefix: 3327
RIPE Region transit ASes present in the Internet Routing Table: 1064
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187348544
Equivalent to 11 /8s, 42 /16s and 182 /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: 6809
Total LACNIC prefixes after maximum aggregation: 2403
Prefixes being announced from the LACNIC address blocks: 6696
Unique aggregates announced from the LACNIC address blocks: 4050
LACNIC Region origin ASes present in the Internet Routing Table: 417
LACNIC Region origin ASes announcing only one prefix: 125
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: 17323008
Equivalent to 1 /8s, 8 /16s and 84 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1326
Total AfriNIC prefixes after maximum aggregation: 715
Prefixes being announced from the AfriNIC address blocks: 885
Unique aggregates announced from the AfriNIC address blocks: 682
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: 2194944
Equivalent to 0 /8s, 33 /16s and 126 /24s
Percentage of available AfriNIC address space announced: 13.1
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 783 1183 558 Telstra Pty Ltd
4766 592 3415 282 Korea Internet Exchange for "
9583 582 48 12 Satyam Infoway Ltd.,
4755 459 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 396 86 69 TPG Internet Pty Ltd
17676 394 5916 62 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 280 297 208 Optus Communications Pty Ltd
2764 271 254 218 connect.com.au pty ltd
703 270 339 211 UUNET
9800 237 383 75 CHINA UNICOM
4808 235 170 128 CHINANET core WAN North
4802 231 28 140 Wantree Development
9498 231 81 53 BHARTI BT INTERNET LTD.
17974 229 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1463 6607 980 AT&T WorldNet Services
721 1132 21803 316 DLA Systems Automation Center
701 1059 8336 902 UUNET Technologies, Inc.
4323 1032 672 220 Time Warner Telecom
7015 963 212 22 AT&T Broadband
1239 947 2880 625 Sprint
6197 858 378 402 BellSouth Network Solutions,
2386 819 506 606 AT&T Data Communications Serv
18566 770 208 6 Covad Communications
209 648 3404 499 Qwest
3356 594 10868 443 Level 3 Communications, LLC
3561 584 2370 416 Cable & Wireless USA
20115 573 476 305 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 501 821 97 AT&T Worldnet Services
3602 491 120 91 Sprint Canada, Inc.
22773 469 1090 24 Cox Communications, Inc. Atla
27364 468 44 18 Armstrong Cable Services
6198 457 499 200 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 2022 509 UUNET - Commercial IP service
3320 295 2992 230 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 277 466 270 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 166 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 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 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
11664 150 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 135 90 92 Global One Communicaoes Ltda
6503 115 147 80 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
14420 87 6 42 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
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 35 54 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
8346 15 11 15 SONATEL-AS Autonomous System
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7015 963 941 AT&T Broadband
721 1132 816 DLA Systems Automation Center
4323 1032 812 Time Warner Telecom
18566 770 764 Covad Communications
4134 883 711 Data Communications Bureau
9583 582 570 Satyam Infoway Ltd.,
6197 858 456 BellSouth Network Solutions,
27364 468 450 Armstrong Cable Services
22773 469 445 Cox Communications, Inc. Atla
5668 440 423 Century Telephone
6478 501 404 AT&T Worldnet Services
3602 491 400 Sprint Canada, Inc.
4755 459 358 Videsh Sanchar Nigam Ltd. Aut
22909 422 358 Comcast Cable Corporation
17676 394 332 XTAGE CORPORATION
6467 363 332 E.Spire Communications, Inc.
7545 396 327 TPG Internet Pty Ltd
1239 947 322 Sprint
9929 351 316 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 /14:311 /15:566 /16:8289 /17:2393 /18:4078
/19:10058 /20:10667 /21:8489 /22:11841 /23:13001 /24:85339
/25:295 /26:258 /27:115 /28:48 /29:21 /30:79
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7015 926 963 AT&T Broadband
18566 755 770 Covad Communications
6197 703 858 BellSouth Network Solutions,
7018 628 1463 AT&T WorldNet Services
2386 592 819 AT&T Data Communications Serv
4323 478 1032 Time Warner Telecom
27364 453 468 Armstrong Cable Services
9583 410 582 Satyam Infoway Ltd.,
4766 405 592 Korea Internet Exchange for "
702 376 617 UUNET - Commercial IP service
5668 375 440 Century Telephone
1239 368 947 Sprint
6198 328 457 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 294 336 Choice One Communications Inc
6517 282 304 Yipes Communications, Inc.
9929 276 351 China Netcom Corp.
6467 275 363 E.Spire Communications, Inc.
701 268 1059 UUNET Technologies, Inc.
11456 263 310 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1485 13:1 15:6 16:2
17:3 18:4 20:4 24:1177 32:68 33:3
38:91 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:2 60:14 61:685 62:511
63:1865 64:2594 65:2134 66:2778 67:494 68:496
69:915 70:57 71:2 72:53 80:564 81:507
82:353 83:263 84:125 85:95 128:128 129:166
130:91 131:195 132:36 134:143 135:30 136:213
137:67 138:180 139:47 140:194 141:101 142:139
143:120 144:253 145:45 146:282 147:98 148:264
149:162 150:94 151:62 152:111 153:72 154:2
155:136 156:69 157:78 158:149 159:164 160:67
161:59 162:415 163:85 164:214 165:157 166:131
167:225 168:390 169:132 170:314 171:8 192:5678
193:3045 194:2250 195:1567 196:609 198:3831 199:3257
200:3955 201:50 202:5160 203:5968 204:3592 205:2034
206:2318 207:2668 208:2100 209:3082 210:1577 211:779
212:1141 213:1265 214:240 215:31 216:3702 217:1091
218:188 219:117 220:349 221:79 222:75
End of report
