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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 04 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148547
Prefixes after maximum aggregation: 87713
Unique aggregates announced to Internet: 70647
Total ASes present in the Internet Routing Table: 18141
Origin-only ASes present in the Internet Routing Table: 15757
Origin ASes announcing only one prefix: 7357
Transit ASes present in the Internet Routing Table: 2384
Transit-only ASes present in the Internet Routing Table: 76
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: 57
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1342036900
Equivalent to 79 /8s, 253 /16s and 219 /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: 68400
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28514
Total APNIC prefixes after maximum aggregation: 14254
Prefixes being announced from the APNIC address blocks: 26674
Unique aggregates announced from the APNIC address blocks: 14240
APNIC Region origin ASes present in the Internet Routing Table: 2140
APNIC Region origin ASes announcing only one prefix: 639
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: 164213632
Equivalent to 9 /8s, 201 /16s and 179 /24s
Percentage of available APNIC address space announced: 74.9
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: 84892
Total ARIN prefixes after maximum aggregation: 51302
Prefixes being announced from the ARIN address blocks: 65058
Unique aggregates announced from the ARIN address blocks: 22923
ARIN Region origin ASes present in the Internet Routing Table: 9581
ARIN Region origin ASes announcing only one prefix: 3434
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: 233090560
Equivalent to 13 /8s, 228 /16s and 174 /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: 27523
Total RIPE prefixes after maximum aggregation: 19132
Prefixes being announced from the RIPE address blocks: 24373
Unique aggregates announced from the RIPE address blocks: 15968
RIPE Region origin ASes present in the Internet Routing Table: 5860
RIPE Region origin ASes announcing only one prefix: 3151
RIPE Region transit ASes present in the Internet Routing Table: 1010
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 172395840
Equivalent to 10 /8s, 70 /16s and 141 /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: 6341
Total LACNIC prefixes after maximum aggregation: 2337
Prefixes being announced from the LACNIC address blocks: 6179
Unique aggregates announced from the LACNIC address blocks: 3645
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: 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: 16143360
Equivalent to 0 /8s, 246 /16s and 84 /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: 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 809 1184 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 364 132 48 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 80 Primus Telecommunications
2907 353 1857 327 SINET Japan
9929 344 161 33 China Netcom Corp.
703 312 342 241 UUNET
17557 310 23 155 Pakistan Telecom
2764 283 274 232 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 212 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 1406 6744 979 AT&T WorldNet Services
701 1269 8447 916 UUNET Technologies, Inc.
1239 940 2867 623 Sprint
3549 848 563 206 Global Crossing
2386 841 530 600 AT&T Data Communications Serv
4323 796 637 218 Time Warner Telecom
6197 780 373 350 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 10923 447 Level 3 Communications, LLC
20115 587 425 300 Charter Communications
852 512 1142 398 Telus Advanced Communications
7843 489 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 432 163 274 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
702 637 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
21502 268 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 205 113 182 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 150 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 371 139 69 ImpSat
8151 300 438 126 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 204 99 53 Servicios Alestra S.A de C.V
6147 193 90 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 126 164 85 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
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 743 737 Covad Communications
4134 839 680 Data Communications Bureau
3549 848 642 Global Crossing
4323 796 578 Time Warner Telecom
6197 780 430 BellSouth Network Solutions,
721 723 425 DLA Systems Automation Center
9583 530 424 Satyam Infoway Ltd.,
7843 489 391 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 1269 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.
6140 371 302 ImpSat
6478 370 296 AT&T Worldnet Services
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
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 /12:62
/13:133 /14:306 /15:545 /16:8075 /17:2243 /18:3884
/19:9829 /20:10343 /21:7857 /22:10847 /23:12490 /24:81107
/25:235 /26:206 /27:114 /28:51 /29:32 /30:98
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 743 Covad Communications
6197 631 780 BellSouth Network Solutions,
2386 607 841 AT&T Data Communications Serv
7018 555 1406 AT&T WorldNet Services
3549 448 848 Global Crossing
702 388 637 UUNET - Commercial IP service
27364 379 395 Armstrong Cable Services
1239 376 940 Sprint
9583 368 530 Satyam Infoway Ltd.,
4766 363 544 Korea Internet Exchange for "
701 352 1269 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.
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
21502 265 268 NUMERICABLE is a cabled netwo
3561 257 634 Cable & Wireless USA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:7 12:1401 13:1 15:5 16:2
17:3 18:1 20:6 24:721 32:66 33:2
38:79 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:518 62:500 63:1852
64:2536 65:2058 66:2509 67:413 68:548 69:717
70:80 80:519 81:550 82:314 83:172 84:32
111:1 128:118 129:169 130:87 131:185 132:33
134:187 135:17 136:177 137:55 138:182 139:36
140:187 141:107 142:123 143:68 144:162 145:42
146:325 147:94 148:326 149:108 150:87 151:65
152:153 153:67 154:2 155:128 156:58 157:73
158:142 159:162 160:56 161:71 162:374 163:79
164:211 165:161 166:118 167:223 168:356 169:120
170:272 171:9 192:5564 193:2899 194:2127 195:1494
196:644 198:3672 199:3288 200:3689 201:20 202:4865
203:5704 204:3326 205:2100 206:2441 207:2628 208:2275
209:2977 210:1483 211:638 212:1113 213:1193 214:131
215:31 216:3672 217:1040 218:175 219:101 220:256
221:37 222:43
End of report
