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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 01 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148194
Prefixes after maximum aggregation: 87757
Unique aggregates announced to Internet: 70530
Total ASes present in the Internet Routing Table: 18131
Origin-only ASes present in the Internet Routing Table: 15763
Origin ASes announcing only one prefix: 7341
Transit ASes present in the Internet Routing Table: 2368
Transit-only ASes present in the Internet Routing Table: 74
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: 53
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1342288800
Equivalent to 80 /8s, 1 /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: 68042
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28516
Total APNIC prefixes after maximum aggregation: 14262
Prefixes being announced from the APNIC address blocks: 26677
Unique aggregates announced from the APNIC address blocks: 14201
APNIC Region origin ASes present in the Internet Routing Table: 2136
APNIC Region origin ASes announcing only one prefix: 635
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164334976
Equivalent to 9 /8s, 203 /16s and 141 /24s
Percentage of available APNIC address space announced: 75.0
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: 84904
Total ARIN prefixes after maximum aggregation: 51370
Prefixes being announced from the ARIN address blocks: 65106
Unique aggregates announced from the ARIN address blocks: 22932
ARIN Region origin ASes present in the Internet Routing Table: 9581
ARIN Region origin ASes announcing only one prefix: 3427
ARIN Region transit ASes present in the Internet Routing Table: 918
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233076736
Equivalent to 13 /8s, 228 /16s and 120 /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: 27199
Total RIPE prefixes after maximum aggregation: 19108
Prefixes being announced from the RIPE address blocks: 24056
Unique aggregates announced from the RIPE address blocks: 15930
RIPE Region origin ASes present in the Internet Routing Table: 5857
RIPE Region origin ASes announcing only one prefix: 3147
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: 172279616
Equivalent to 10 /8s, 68 /16s and 199 /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: 6302
Total LACNIC prefixes after maximum aggregation: 2329
Prefixes being announced from the LACNIC address blocks: 6135
Unique aggregates announced from the LACNIC address blocks: 3580
LACNIC Region origin ASes present in the Internet Routing Table: 392
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16208640
Equivalent to 0 /8s, 247 /16s and 83 /24s
Percentage of available LACNIC address space announced: 48.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1270
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 886
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: 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: 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 808 1183 581 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 530 41 106 Satyam Infoway Ltd.,
17676 370 5532 52 XTAGE CORPORATION
4755 368 133 49 Videsh Sanchar Nigam Ltd. Aut
2907 354 1857 328 SINET Japan
9443 354 69 80 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
703 312 342 241 UUNET
17557 312 23 156 Pakistan Telecom
2764 284 274 233 connect.com.au pty ltd
7474 271 269 202 Optus Communications Pty Ltd
9942 240 73 129 COMindico Australia
4802 232 28 141 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 228 49 48 BHARTI BT INTERNET LTD.
7563 210 48 164 Korea Internet Infrastructure
4837 202 2264 106 chinanet IDC center beijing n
10036 202 18 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1411 6763 982 AT&T WorldNet Services
701 1277 8429 920 UUNET Technologies, Inc.
1239 941 2867 624 Sprint
3549 851 563 206 Global Crossing
2386 841 530 602 AT&T Data Communications Serv
4323 796 637 218 Time Warner Telecom
18566 742 208 6 Covad Communications
6197 733 357 350 BellSouth Network Solutions,
721 727 21028 298 DLA Systems Automation Center
209 629 3465 498 Qwest
3561 618 2494 426 Cable & Wireless USA
3356 589 10923 448 Level 3 Communications, LLC
20115 587 425 300 Charter Communications
852 511 1141 397 Telus Advanced Communications
7843 491 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 431 163 273 UUNET Technologies, Inc.
6198 430 396 200 BellSouth Network Solutions,
22773 399 960 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
702 637 2031 527 UUNET - Commercial IP service
3320 300 2470 237 Deutsche Telekom AG
8220 282 461 268 COLT Internet - International
3301 281 1100 271 TeliaNet Sweden
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 186 876 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 150 18 19 Bulgarian Telecommunication C
25186 149 154 106 France Telecom Transpac's Tra
5400 148 207 120 BT Ignite European Backbone
3269 147 1227 67 TELECOM ITALIA
3303 146 609 129 Swisscom Ltd
12302 129 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 368 138 68 ImpSat
8151 302 439 129 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 202 83 52 Servicios Alestra S.A de C.V
6147 195 94 20 Telefonica Del Peru
11664 165 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 128 58 22 Telecom Argentina Stet-France
6503 127 164 86 AVANTEL, S.A.
11992 90 9 31 Integrated Systems
14420 88 7 39 ANDINATEL S.A.
6535 85 7 19 Chilesat Servicios Empresari
11311 82 7 21 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 80 40 2 Cable-Wireless Panama
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
14117 71 6 4 Telefonica del Sur S.A.
4270 70 18 9 Red de Interconexion Universi
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<<
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
14988 25 16 1 Botswana Telecommunications C
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 742 736 Covad Communications
4134 839 680 Data Communications Bureau
3549 851 645 Global Crossing
4323 796 578 Time Warner Telecom
721 727 429 DLA Systems Automation Center
9583 530 424 Satyam Infoway Ltd.,
7843 491 393 Adelphia Corp.
6197 733 383 BellSouth Network Solutions,
22773 399 381 Cox Communications, Inc. Atla
5668 398 380 Century Telephone
27364 394 375 Armstrong Cable Services
6467 393 363 E.Spire Communications, Inc.
701 1277 357 UUNET Technologies, Inc.
22909 378 340 Comcast Cable Corporation
4755 368 319 Videsh Sanchar Nigam Ltd. Aut
17676 370 318 XTAGE CORPORATION
1239 941 317 Sprint
9929 344 311 China Netcom Corp.
6140 368 300 ImpSat
6478 370 296 AT&T Worldnet Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /16:8082 /17:2236 /18:3885
/19:9837 /20:10346 /21:7828 /22:10825 /23:12490 /24:80798
/25:236 /26:206 /27:114 /28:51 /29:30 /30:96
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 727 742 Covad Communications
2386 607 841 AT&T Data Communications Serv
6197 584 733 BellSouth Network Solutions,
7018 555 1411 AT&T WorldNet Services
3549 450 851 Global Crossing
702 388 637 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
1239 376 941 Sprint
9583 368 530 Satyam Infoway Ltd.,
4766 363 544 Korea Internet Exchange for "
701 360 1277 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 316 430 BellSouth Network Solutions,
20115 299 587 Charter Communications
6467 289 393 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
4323 248 796 Time Warner Telecom
3561 247 618 Cable & Wireless USA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:4 12:1400 13:1 15:5 16:2
17:3 18:1 20:6 24:723 32:66 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:519 62:501 63:1848
64:2535 65:2059 66:2510 67:401 68:547 69:706
70:75 80:497 81:374 82:239 83:170 84:33
111:1 128:119 129:169 130:87 131:186 132:35
134:188 135:17 136:182 137:55 138:181 139:36
140:190 141:107 142:122 143:67 144:159 145:42
146:324 147:94 148:326 149:108 150:87 151:65
152:153 153:68 154:2 155:127 156:58 157:73
158:142 159:162 160:56 161:71 162:374 163:80
164:214 165:161 166:119 167:224 168:327 169:120
170:272 171:9 192:5573 193:2901 194:2132 195:1491
196:644 198:3679 199:3285 200:3643 201:20 202:4880
203:5694 204:3329 205:2096 206:2442 207:2643 208:2279
209:3016 210:1485 211:640 212:1102 213:1195 214:133
215:31 216:3678 217:1019 218:175 219:101 220:255
221:37 222:43
End of report
