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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 01 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155273
Prefixes after maximum aggregation: 90449
Unique aggregates announced to Internet: 74293
Total ASes present in the Internet Routing Table: 18879
Origin-only ASes present in the Internet Routing Table: 16392
Origin ASes announcing only one prefix: 7690
Transit ASes present in the Internet Routing Table: 2487
Transit-only ASes present in the Internet Routing Table: 80
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1371340588
Equivalent to 81 /8s, 188 /16s and 255 /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: 72488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30818
Total APNIC prefixes after maximum aggregation: 14883
Prefixes being announced from the APNIC address blocks: 28845
Unique aggregates announced from the APNIC address blocks: 14593
APNIC Region origin ASes present in the Internet Routing Table: 2197
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 172393344
Equivalent to 10 /8s, 70 /16s and 131 /24s
Percentage of available APNIC address space announced: 64.0
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: 87132
Total ARIN prefixes after maximum aggregation: 52261
Prefixes being announced from the ARIN address blocks: 66466
Unique aggregates announced from the ARIN address blocks: 24004
ARIN Region origin ASes present in the Internet Routing Table: 9834
ARIN Region origin ASes announcing only one prefix: 3572
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240066816
Equivalent to 14 /8s, 79 /16s and 33 /24s
Percentage of available ARIN address space announced: 71.5
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: 29177
Total RIPE prefixes after maximum aggregation: 20203
Prefixes being announced from the RIPE address blocks: 26153
Unique aggregates announced from the RIPE address blocks: 17329
RIPE Region origin ASes present in the Internet Routing Table: 6259
RIPE Region origin ASes announcing only one prefix: 3321
RIPE Region transit ASes present in the Internet Routing Table: 1060
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187150912
Equivalent to 11 /8s, 39 /16s and 178 /24s
Percentage of available RIPE address space announced: 65.6
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: 6811
Total LACNIC prefixes after maximum aggregation: 2387
Prefixes being announced from the LACNIC address blocks: 6687
Unique aggregates announced from the LACNIC address blocks: 4055
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17311232
Equivalent to 1 /8s, 8 /16s and 38 /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: 1329
Total AfriNIC prefixes after maximum aggregation: 715
Prefixes being announced from the AfriNIC address blocks: 876
Unique aggregates announced from the AfriNIC address blocks: 694
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: 2107904
Equivalent to 0 /8s, 32 /16s and 42 /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 884 4624 171 Data Communications Bureau
1221 786 1184 561 Telstra Pty Ltd
4766 582 3414 279 Korea Internet Exchange for "
9583 571 48 11 Satyam Infoway Ltd.,
4755 454 178 100 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 346 1838 321 SINET Japan
17557 323 23 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 271 340 212 UUNET
7545 267 84 58 TPG Internet Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 235 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
17974 227 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1456 6607 976 AT&T WorldNet Services
721 1126 21803 315 DLA Systems Automation Center
701 1066 8336 912 UUNET Technologies, Inc.
1239 942 2880 620 Sprint
6197 844 378 400 BellSouth Network Solutions,
4323 837 672 218 Time Warner Telecom
2386 815 505 603 AT&T Data Communications Serv
18566 765 208 6 Covad Communications
7015 683 212 22 AT&T Broadband
209 655 3404 502 Qwest
3356 591 10867 441 Level 3 Communications, LLC
3561 587 2370 416 Cable & Wireless USA
20115 569 474 303 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 502 820 97 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 453 472 203 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 438 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 275 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 226 471 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 211 119 192 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
3215 187 1024 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
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 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 188 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 134 90 91 Global One Communicaoes Ltda
6503 116 147 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
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.
4270 81 18 9 Red de Interconexion Universi
5639 81 8 8 Telecommunications Services o
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 112 15 18 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 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 24 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 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1126 811 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 884 713 Data Communications Bureau
7015 683 661 AT&T Broadband
4323 837 619 Time Warner Telecom
9583 571 560 Satyam Infoway Ltd.,
6197 844 444 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 438 419 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 502 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
22909 423 358 Comcast Cable Corporation
4755 454 354 Videsh Sanchar Nigam Ltd. Aut
6467 364 333 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
1239 942 322 Sprint
9929 350 315 China Netcom Corp.
4766 582 303 Korea Internet Exchange for "
13609 336 301 Choice One Communications Inc
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
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 /12:61
/13:143 /14:314 /15:575 /16:8284 /17:2383 /18:4071
/19:10047 /20:10623 /21:8415 /22:11717 /23:12924 /24:84714
/25:299 /26:261 /27:126 /28:63 /29:33 /30:130
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 689 844 BellSouth Network Solutions,
7015 651 683 AT&T Broadband
7018 619 1456 AT&T WorldNet Services
2386 588 815 AT&T Data Communications Serv
27364 445 460 Armstrong Cable Services
9583 401 571 Satyam Infoway Ltd.,
4766 398 582 Korea Internet Exchange for "
702 377 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 369 942 Sprint
6198 326 453 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 336 Choice One Communications Inc
4323 282 837 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 275 364 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 269 1066 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1480 13:1 15:6 16:2
17:3 18:4 20:4 24:1037 32:68 33:3
38:91 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:668 62:511
63:1851 64:2572 65:2101 66:2592 67:490 68:496
69:901 70:55 71:1 72:50 80:559 81:507
82:364 83:235 84:101 85:81 128:127 129:165
130:90 131:194 132:37 134:144 135:30 136:210
137:67 138:181 139:47 140:191 141:102 142:139
143:120 144:244 145:45 146:281 147:97 148:263
149:161 150:94 151:62 152:111 153:71 154:2
155:136 156:70 157:76 158:149 159:164 160:67
161:59 162:414 163:85 164:213 165:157 166:127
167:225 168:386 169:131 170:316 171:8 192:5664
193:3069 194:2250 195:1572 196:606 198:3846 199:3243
200:3946 201:43 202:5212 203:5889 204:3591 205:2027
206:2319 207:2665 208:2097 209:3062 210:1560 211:766
212:1144 213:1265 214:238 215:31 216:3704 217:1086
218:187 219:124 220:342 221:79 222:77
End of report
