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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 26 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147430
Prefixes after maximum aggregation: 87513
Unique aggregates announced to Internet: 70315
Total ASes present in the Internet Routing Table: 18109
Origin-only ASes present in the Internet Routing Table: 15744
Origin ASes announcing only one prefix: 7340
Transit ASes present in the Internet Routing Table: 2365
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 58
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1340737956
Equivalent to 79 /8s, 234 /16s and 9 /24s
Percentage of available address space announced: 36.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67677
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28447
Total APNIC prefixes after maximum aggregation: 14233
Prefixes being announced from the APNIC address blocks: 26610
Unique aggregates announced from the APNIC address blocks: 14169
APNIC Region origin ASes present in the Internet Routing Table: 2133
APNIC Region origin ASes announcing only one prefix: 633
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 163894400
Equivalent to 9 /8s, 196 /16s and 212 /24s
Percentage of available APNIC address space announced: 74.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84034
Total ARIN prefixes after maximum aggregation: 51241
Prefixes being announced from the ARIN address blocks: 64233
Unique aggregates announced from the ARIN address blocks: 22806
ARIN Region origin ASes present in the Internet Routing Table: 9569
ARIN Region origin ASes announcing only one prefix: 3425
ARIN Region transit ASes present in the Internet Routing Table: 914
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232926976
Equivalent to 13 /8s, 226 /16s and 47 /24s
Percentage of available ARIN address space announced: 69.4
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: 27366
Total RIPE prefixes after maximum aggregation: 19058
Prefixes being announced from the RIPE address blocks: 24178
Unique aggregates announced from the RIPE address blocks: 15867
RIPE Region origin ASes present in the Internet Routing Table: 5848
RIPE Region origin ASes announcing only one prefix: 3146
RIPE Region transit ASes present in the Internet Routing Table: 1004
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 171808320
Equivalent to 10 /8s, 61 /16s and 150 /24s
Percentage of available RIPE address space announced: 60.2
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: 6323
Total LACNIC prefixes after maximum aggregation: 2290
Prefixes being announced from the LACNIC address blocks: 6202
Unique aggregates announced from the LACNIC address blocks: 3618
LACNIC Region origin ASes present in the Internet Routing Table: 392
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16061952
Equivalent to 0 /8s, 245 /16s and 22 /24s
Percentage of available LACNIC address space announced: 47.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1252
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 884
Unique aggregates announced from the AfriNIC address blocks: 675
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1998848
Equivalent to 0 /8s, 30 /16s and 128 /24s
Percentage of available AfriNIC address space announced: 11.9
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 838 4385 158 Data Communications Bureau
1221 807 1183 580 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 533 41 102 Satyam Infoway Ltd.,
4755 366 133 48 Videsh Sanchar Nigam Ltd. Aut
17676 365 5452 53 XTAGE CORPORATION
9443 355 70 81 Primus Telecommunications
2907 351 1840 326 SINET Japan
9929 344 161 33 China Netcom Corp.
17557 312 23 154 Pakistan Telecom
703 311 342 240 UUNET
2764 284 274 233 connect.com.au pty ltd
7474 273 269 201 Optus Communications Pty Ltd
9942 242 73 129 COMindico Australia
4802 234 28 143 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 224 49 49 BHARTI BT INTERNET LTD.
7563 209 48 163 Korea Internet Infrastructure
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
4837 202 2264 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1407 6752 979 AT&T WorldNet Services
701 1271 8425 917 UUNET Technologies, Inc.
1239 935 2878 622 Sprint
2386 835 529 598 AT&T Data Communications Serv
4323 790 633 215 Time Warner Telecom
18566 740 208 6 Covad Communications
6197 721 364 350 BellSouth Network Solutions,
721 713 21011 296 DLA Systems Automation Center
209 627 3465 496 Qwest
3356 589 10923 448 Level 3 Communications, LLC
20115 586 425 299 Charter Communications
3561 568 2497 384 Cable & Wireless USA
852 511 1141 397 Telus Advanced Communications
7843 491 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 432 163 273 UUNET Technologies, Inc.
6198 418 395 195 BellSouth Network Solutions,
22773 399 960 18 Cox Communications, Inc. Atla
5668 396 87 18 Century Telephone
27364 394 36 19 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 639 2031 529 UUNET - Commercial IP service
3320 299 2470 236 Deutsche Telekom AG
8220 281 460 268 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 268 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 744 178 SWIPnet Swedish IP Network
8708 205 113 183 Romania Data Systems S.A.
5515 198 842 144 Sonera Solution Autonomous Sy
3215 184 876 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 151 29 128 Dynamic Network Technologies,
25186 149 154 106 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
5400 148 206 120 BT Ignite European Backbone
3269 145 1195 66 TELECOM ITALIA
8866 145 17 23 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 367 138 68 ImpSat
8151 302 439 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 191 86 19 Telefonica Del Peru
11664 169 13 34 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 127 164 86 AVANTEL, S.A.
7303 127 57 21 Telecom Argentina Stet-France
11172 119 77 22 Servicios Alestra S.A de C.V
11992 90 9 31 Integrated Systems
14420 86 7 37 ANDINATEL S.A.
6535 85 7 19 Chilesat Servicios Empresari
10620 85 10 4 TVCABLE BOGOTA
11311 83 8 22 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
14117 71 6 4 Telefonica del Sur S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
14988 45 16 1 Botswana Telecommunications C
6713 31 42 10 Itissalat Al-MAGHRIB
9129 30 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 24 10 19 Johnnic e-Ventures
8524 22 1 10 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21491 16 1 3 UTL On-line is RF broadband I
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 740 734 Covad Communications
4134 838 680 Data Communications Bureau
4323 790 575 Time Warner Telecom
9583 533 431 Satyam Infoway Ltd.,
721 713 417 DLA Systems Automation Center
7843 491 393 Adelphia Corp.
22773 399 381 Cox Communications, Inc. Atla
5668 396 378 Century Telephone
27364 394 375 Armstrong Cable Services
6197 721 371 BellSouth Network Solutions,
6467 390 360 E.Spire Communications, Inc.
701 1271 354 UUNET Technologies, Inc.
22909 376 338 Comcast Cable Corporation
4755 366 318 Videsh Sanchar Nigam Ltd. Aut
1239 935 313 Sprint
17676 365 312 XTAGE CORPORATION
9929 344 311 China Netcom Corp.
6140 367 299 ImpSat
6478 365 294 AT&T Worldnet Services
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking
22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.224.0/20 3741 The Internet Solutio
22750 UNALLOCATED 196.44.225.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.226.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.227.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.228.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.229.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.230.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.231.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.232.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.233.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.234.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.235.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.236.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.237.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.238.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.239.0/24 3741 The Internet Solutio
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
111.0.0.0/24 7563 Korea Internet Infrastructure
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 4738 South Australian Academic Res
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
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
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 /10:6 /11:15 /12:63
/13:134 /14:307 /15:540 /16:8066 /17:2226 /18:3857
/19:9794 /20:10317 /21:7796 /22:10761 /23:12370 /24:80339
/25:240 /26:208 /27:110 /28:58 /29:43 /30:107
/31:0 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 740 Covad Communications
2386 602 835 AT&T Data Communications Serv
6197 572 721 BellSouth Network Solutions,
7018 552 1407 AT&T WorldNet Services
702 390 639 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
9583 371 533 Satyam Infoway Ltd.,
1239 363 935 Sprint
4766 363 544 Korea Internet Exchange for "
701 356 1271 UUNET Technologies, Inc.
5668 346 396 Century Telephone
6198 307 418 BellSouth Network Solutions,
20115 298 586 Charter Communications
6467 288 390 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
13609 265 308 Choice One Communications Inc
21502 265 268 NUMERICABLE is a cabled netwo
6517 264 291 Yipes Communications, Inc.
3320 245 299 Deutsche Telekom AG
4323 245 790 Time Warner Telecom
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1389 13:1 15:5 16:2
17:3 18:1 20:6 24:724 32:66 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:510 62:500 63:1841
64:2373 65:2049 66:2481 67:385 68:545 69:712
70:73 80:524 81:549 82:301 83:158 84:26
111:1 128:122 129:171 130:87 131:189 132:27
134:187 135:17 136:180 137:55 138:180 139:35
140:183 141:107 142:120 143:66 144:160 145:42
146:293 147:90 148:382 149:110 150:83 151:65
152:152 153:68 154:2 155:127 156:58 157:69
158:142 159:163 160:56 161:71 162:373 163:81
164:214 165:161 166:118 167:222 168:345 169:118
170:270 171:9 192:5570 193:2903 194:2118 195:1483
196:643 198:3670 199:3263 200:3737 201:20 202:4855
203:5693 204:3239 205:2098 206:2315 207:2584 208:2140
209:2987 210:1485 211:619 212:1091 213:1199 214:132
215:31 216:3666 217:1012 218:176 219:101 220:257
221:37 222:44
End of report
