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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 28 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147705
Prefixes after maximum aggregation: 87567
Unique aggregates announced to Internet: 70419
Total ASes present in the Internet Routing Table: 18099
Origin-only ASes present in the Internet Routing Table: 15736
Origin ASes announcing only one prefix: 7328
Transit ASes present in the Internet Routing Table: 2363
Transit-only ASes present in the Internet Routing Table: 72
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: 1341593252
Equivalent to 79 /8s, 247 /16s and 22 /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: 67836
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28461
Total APNIC prefixes after maximum aggregation: 14236
Prefixes being announced from the APNIC address blocks: 26629
Unique aggregates announced from the APNIC address blocks: 14176
APNIC Region origin ASes present in the Internet Routing Table: 2131
APNIC Region origin ASes announcing only one prefix: 629
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164022400
Equivalent to 9 /8s, 198 /16s and 200 /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: 84066
Total ARIN prefixes after maximum aggregation: 51238
Prefixes being announced from the ARIN address blocks: 64241
Unique aggregates announced from the ARIN address blocks: 22809
ARIN Region origin ASes present in the Internet Routing Table: 9559
ARIN Region origin ASes announcing only one prefix: 3421
ARIN Region transit ASes present in the Internet Routing Table: 913
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 232887040
Equivalent to 13 /8s, 225 /16s and 147 /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: 27459
Total RIPE prefixes after maximum aggregation: 19081
Prefixes being announced from the RIPE address blocks: 24307
Unique aggregates announced from the RIPE address blocks: 15910
RIPE Region origin ASes present in the Internet Routing Table: 5852
RIPE Region origin ASes announcing only one prefix: 3145
RIPE Region transit ASes present in the Internet Routing Table: 1005
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 172134464
Equivalent to 10 /8s, 66 /16s and 144 /24s
Percentage of available RIPE address space announced: 60.4
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: 6419
Total LACNIC prefixes after maximum aggregation: 2321
Prefixes being announced from the LACNIC address blocks: 6284
Unique aggregates announced from the LACNIC address blocks: 3658
LACNIC Region origin ASes present in the Internet Routing Table: 393
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16151808
Equivalent to 0 /8s, 246 /16s and 117 /24s
Percentage of available LACNIC address space announced: 48.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1292
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 883
Unique aggregates announced from the AfriNIC address blocks: 674
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2063872
Equivalent to 0 /8s, 31 /16s and 126 /24s
Percentage of available AfriNIC address space announced: 12.3
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 806 1183 579 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 534 41 103 Satyam Infoway Ltd.,
4755 367 133 48 Videsh Sanchar Nigam Ltd. Aut
17676 367 5484 53 XTAGE CORPORATION
9443 355 70 81 Primus Telecommunications
2907 353 1841 327 SINET Japan
9929 344 161 33 China Netcom Corp.
703 312 342 241 UUNET
17557 312 23 154 Pakistan Telecom
2764 284 274 233 connect.com.au pty ltd
7474 273 269 201 Optus Communications Pty Ltd
9942 239 73 129 COMindico Australia
4802 234 28 143 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 223 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 1405 6752 981 AT&T WorldNet Services
701 1270 8425 916 UUNET Technologies, Inc.
1239 933 2867 619 Sprint
2386 836 529 598 AT&T Data Communications Serv
4323 790 633 215 Time Warner Telecom
18566 740 208 6 Covad Communications
6197 720 364 351 BellSouth Network Solutions,
721 718 21028 296 DLA Systems Automation Center
209 625 3464 495 Qwest
3356 589 10923 448 Level 3 Communications, LLC
20115 585 424 298 Charter Communications
3561 571 2513 384 Cable & Wireless USA
852 511 1141 397 Telus Advanced Communications
7843 491 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6198 421 396 199 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 300 2470 237 Deutsche Telekom AG
8220 282 461 268 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 185 876 76 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,
5400 149 206 121 BT Ignite European Backbone
25186 149 154 106 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
8866 148 17 23 Bulgarian Telecommunication C
3269 145 1195 66 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 366 138 67 ImpSat
8151 302 439 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 201 99 51 Servicios Alestra S.A de C.V
6147 191 86 19 Telefonica Del Peru
11664 172 12 36 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
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
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
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
24835 34 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
9129 30 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
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
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 534 431 Satyam Infoway Ltd.,
721 718 422 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 720 369 BellSouth Network Solutions,
6467 391 361 E.Spire Communications, Inc.
701 1270 354 UUNET Technologies, Inc.
22909 376 338 Comcast Cable Corporation
4755 367 319 Videsh Sanchar Nigam Ltd. Aut
1239 933 314 Sprint
17676 367 314 XTAGE CORPORATION
9929 344 311 China Netcom Corp.
6140 366 299 ImpSat
6478 365 294 AT&T Worldnet Services
4355 391 290 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 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking
22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking
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
192.44.0.0/19 702 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
192.172.11.0/24 721 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 /16:8073 /17:2228 /18:3858
/19:9817 /20:10336 /21:7811 /22:10790 /23:12412 /24:80472
/25:240 /26:207 /27:114 /28:58 /29:44 /30:106
/31:0 /32:52
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 740 Covad Communications
2386 603 836 AT&T Data Communications Serv
6197 571 720 BellSouth Network Solutions,
7018 549 1405 AT&T WorldNet Services
702 390 639 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
9583 371 534 Satyam Infoway Ltd.,
1239 369 933 Sprint
4766 363 544 Korea Internet Exchange for "
701 356 1270 UUNET Technologies, Inc.
5668 346 396 Century Telephone
6198 308 421 BellSouth Network Solutions,
20115 298 585 Charter Communications
6467 288 391 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
21502 265 268 NUMERICABLE is a cabled netwo
3320 246 300 Deutsche Telekom AG
4323 245 790 Time Warner Telecom
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:4 12:1391 13:1 15:5 16:2
17:3 18:1 20:6 24:722 32:66 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:518 62:506 63:1839
64:2375 65:2049 66:2474 67:384 68:546 69:716
70:74 80:526 81:550 82:309 83:162 84:29
111:1 128:120 129:169 130:87 131:187 132:27
134:187 135:17 136:182 137:55 138:181 139:36
140:183 141:107 142:120 143:67 144:161 145:42
146:293 147:92 148:392 149:104 150:84 151:65
152:153 153:68 154:2 155:127 156:58 157:71
158:142 159:162 160:56 161:71 162:374 163:80
164:214 165:161 166:118 167:223 168:343 169:120
170:270 171:9 192:5567 193:2907 194:2119 195:1481
196:641 198:3669 199:3270 200:3805 201:20 202:4853
203:5689 204:3244 205:2092 206:2314 207:2585 208:2148
209:2983 210:1488 211:623 212:1098 213:1204 214:133
215:31 216:3662 217:1019 218:175 219:102 220:257
221:37 222:44
End of report
