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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 05 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148722
Prefixes after maximum aggregation: 87835
Unique aggregates announced to Internet: 70827
Total ASes present in the Internet Routing Table: 18164
Origin-only ASes present in the Internet Routing Table: 15782
Origin ASes announcing only one prefix: 7372
Transit ASes present in the Internet Routing Table: 2382
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
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: 16
Number of addresses announced to Internet: 1342616356
Equivalent to 80 /8s, 6 /16s and 179 /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: 68520
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28528
Total APNIC prefixes after maximum aggregation: 14276
Prefixes being announced from the APNIC address blocks: 26690
Unique aggregates announced from the APNIC address blocks: 14263
APNIC Region origin ASes present in the Internet Routing Table: 2143
APNIC Region origin ASes announcing only one prefix: 641
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164532608
Equivalent to 9 /8s, 206 /16s and 145 /24s
Percentage of available APNIC address space announced: 75.1
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: 85015
Total ARIN prefixes after maximum aggregation: 51370
Prefixes being announced from the ARIN address blocks: 65083
Unique aggregates announced from the ARIN address blocks: 22935
ARIN Region origin ASes present in the Internet Routing Table: 9589
ARIN Region origin ASes announcing only one prefix: 3438
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233116160
Equivalent to 13 /8s, 229 /16s and 18 /24s
Percentage of available ARIN address space announced: 69.5
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: 27555
Total RIPE prefixes after maximum aggregation: 19156
Prefixes being announced from the RIPE address blocks: 24402
Unique aggregates announced from the RIPE address blocks: 16019
RIPE Region origin ASes present in the Internet Routing Table: 5870
RIPE Region origin ASes announcing only one prefix: 3158
RIPE Region transit ASes present in the Internet Routing Table: 1006
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 172345536
Equivalent to 10 /8s, 69 /16s and 200 /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: 6368
Total LACNIC prefixes after maximum aggregation: 2345
Prefixes being announced from the LACNIC address blocks: 6200
Unique aggregates announced from the LACNIC address blocks: 3650
LACNIC Region origin ASes present in the Internet Routing Table: 394
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16226048
Equivalent to 0 /8s, 247 /16s and 151 /24s
Percentage of available LACNIC address space announced: 48.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1248
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 889
Unique aggregates announced from the AfriNIC address blocks: 677
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: 4.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 2064640
Equivalent to 0 /8s, 31 /16s and 129 /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 839 4389 159 Data Communications Bureau
1221 809 1184 582 Telstra Pty Ltd
4766 542 3407 265 Korea Internet Exchange for "
9583 530 41 106 Satyam Infoway Ltd.,
17676 370 5532 52 XTAGE CORPORATION
4755 364 132 48 Videsh Sanchar Nigam Ltd. Aut
2907 354 1857 328 SINET Japan
9443 354 69 80 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
703 313 342 242 UUNET
17557 311 23 155 Pakistan Telecom
2764 284 274 232 connect.com.au pty ltd
7474 270 269 201 Optus Communications Pty Ltd
9942 239 73 128 COMindico Australia
4802 230 28 140 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 228 49 48 BHARTI BT INTERNET LTD.
7563 213 48 164 Korea Internet Infrastructure
10036 203 19 186 C&M Communication Co. Ltd.
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1405 6744 981 AT&T WorldNet Services
701 1271 8448 918 UUNET Technologies, Inc.
1239 940 2867 623 Sprint
3549 849 563 206 Global Crossing
2386 843 530 602 AT&T Data Communications Serv
4323 795 637 218 Time Warner Telecom
6197 790 490 322 BellSouth Network Solutions,
18566 743 208 6 Covad Communications
721 723 21028 298 DLA Systems Automation Center
3561 634 2513 432 Cable & Wireless USA
209 630 3465 498 Qwest
3356 588 10924 447 Level 3 Communications, LLC
20115 587 425 300 Charter Communications
852 512 1142 398 Telus Advanced Communications
7843 488 680 102 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 431 163 273 UUNET Technologies, Inc.
6198 431 396 200 BellSouth Network Solutions,
22773 401 960 18 Cox Communications, Inc. Atla
5668 398 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 638 2031 528 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
8220 282 462 268 COLT Internet - International
3301 281 1100 271 TeliaNet Sweden
21502 269 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 744 178 SWIPnet Swedish IP Network
8708 206 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
3215 189 876 76 France Telecom Transpac
786 176 1794 176 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 151 29 128 Dynamic Network Technologies,
8866 151 18 19 Bulgarian Telecommunication C
25186 149 154 106 France Telecom Transpac's Tra
3269 147 1227 67 TELECOM ITALIA
5400 147 207 119 BT Ignite European Backbone
3303 146 609 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 349 139 68 ImpSat
8151 303 439 129 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 203 99 52 Servicios Alestra S.A de C.V
6147 194 94 20 Telefonica Del Peru
11664 163 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 129 58 23 Telecom Argentina Stet-France
6503 127 164 86 AVANTEL, S.A.
11992 90 9 31 Integrated Systems
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
14420 80 5 33 ANDINATEL S.A.
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
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 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 58 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
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
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 743 737 Covad Communications
4134 839 680 Data Communications Bureau
3549 849 643 Global Crossing
4323 795 577 Time Warner Telecom
6197 790 468 BellSouth Network Solutions,
721 723 425 DLA Systems Automation Center
9583 530 424 Satyam Infoway Ltd.,
7843 488 386 Adelphia Corp.
22773 401 383 Cox Communications, Inc. Atla
5668 398 380 Century Telephone
27364 395 376 Armstrong Cable Services
6467 389 358 E.Spire Communications, Inc.
701 1271 353 UUNET Technologies, Inc.
22909 381 347 Comcast Cable Corporation
17676 370 318 XTAGE CORPORATION
1239 940 317 Sprint
4755 364 316 Videsh Sanchar Nigam Ltd. Aut
9929 344 311 China Netcom Corp.
6478 370 296 AT&T Worldnet Services
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 24.249.231.0/24 15218 COX Communications
64512 PRIVATE 24.249.232.0/24 15218 COX Communications
64512 PRIVATE 24.249.233.0/24 15218 COX Communications
64512 PRIVATE 24.249.234.0/24 15218 COX Communications
64512 PRIVATE 24.249.235.0/24 15218 COX Communications
65010 PRIVATE 64.192.10.0/23 7911 Williams Communicati
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
192.119.135.0/24 270 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
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 /12:62
/13:133 /14:306 /15:546 /16:8080 /17:2238 /18:3889
/19:9852 /20:10349 /21:7862 /22:10860 /23:12496 /24:81223
/25:234 /26:206 /27:114 /28:51 /29:32 /30:98
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 743 Covad Communications
6197 634 790 BellSouth Network Solutions,
2386 609 843 AT&T Data Communications Serv
7018 553 1405 AT&T WorldNet Services
3549 450 849 Global Crossing
702 389 638 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
1239 376 940 Sprint
9583 368 530 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
701 352 1271 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 317 431 BellSouth Network Solutions,
20115 299 587 Charter Communications
6467 287 389 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
21502 266 269 NUMERICABLE is a cabled netwo
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
3561 257 634 Cable & Wireless USA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:7 12:1402 13:1 15:5 16:2
17:3 18:1 20:6 24:722 32:68 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:519 62:504 63:1845
64:2540 65:2059 66:2509 67:415 68:548 69:722
70:80 80:528 81:551 82:313 83:171 84:32
111:1 128:116 129:169 130:87 131:184 132:35
134:187 135:17 136:177 137:55 138:181 139:38
140:187 141:107 142:123 143:69 144:162 145:42
146:325 147:94 148:396 149:108 150:87 151:65
152:153 153:68 154:2 155:128 156:58 157:73
158:142 159:163 160:56 161:71 162:374 163:80
164:210 165:161 166:118 167:223 168:333 169:120
170:272 171:9 192:5575 193:2901 194:2133 195:1497
196:647 198:3644 199:3288 200:3694 201:20 202:4862
203:5711 204:3332 205:2098 206:2439 207:2636 208:2276
209:2980 210:1489 211:631 212:1117 213:1192 214:131
215:31 216:3689 217:1046 218:175 219:101 220:256
221:37 222:43
End of report
