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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147825
Prefixes after maximum aggregation: 87688
Unique aggregates announced to Internet: 70498
Total ASes present in the Internet Routing Table: 18124
Origin-only ASes present in the Internet Routing Table: 15753
Origin ASes announcing only one prefix: 7332
Transit ASes present in the Internet Routing Table: 2371
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: 26
Prefixes from unregistered ASNs in the Routing Table: 56
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1342183332
Equivalent to 80 /8s, 0 /16s and 23 /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: 28507
Total APNIC prefixes after maximum aggregation: 14242
Prefixes being announced from the APNIC address blocks: 26670
Unique aggregates announced from the APNIC address blocks: 14198
APNIC Region origin ASes present in the Internet Routing Table: 2134
APNIC Region origin ASes announcing only one prefix: 631
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164308096
Equivalent to 9 /8s, 203 /16s and 36 /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: 84226
Total ARIN prefixes after maximum aggregation: 51333
Prefixes being announced from the ARIN address blocks: 64407
Unique aggregates announced from the ARIN address blocks: 22871
ARIN Region origin ASes present in the Internet Routing Table: 9580
ARIN Region origin ASes announcing only one prefix: 3428
ARIN Region transit ASes present in the Internet Routing Table: 920
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233007872
Equivalent to 13 /8s, 227 /16s and 107 /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: 27500
Total RIPE prefixes after maximum aggregation: 19099
Prefixes being announced from the RIPE address blocks: 24338
Unique aggregates announced from the RIPE address blocks: 15950
RIPE Region origin ASes present in the Internet Routing Table: 5850
RIPE Region origin ASes announcing only one prefix: 3141
RIPE Region transit ASes present in the Internet Routing Table: 1003
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 172106560
Equivalent to 10 /8s, 66 /16s and 35 /24s
Percentage of available RIPE address space announced: 60.3
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: 6316
Total LACNIC prefixes after maximum aggregation: 2323
Prefixes being announced from the LACNIC address blocks: 6153
Unique aggregates announced from the LACNIC address blocks: 3595
LACNIC Region origin ASes present in the Internet Routing Table: 393
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16184064
Equivalent to 0 /8s, 246 /16s and 243 /24s
Percentage of available LACNIC address space announced: 48.2
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 838 4385 158 Data Communications Bureau
1221 804 1183 578 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 531 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 23 153 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 233 28 142 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 227 49 49 BHARTI BT INTERNET LTD.
7563 208 48 162 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 1408 6760 979 AT&T WorldNet Services
701 1278 8429 921 UUNET Technologies, Inc.
1239 941 2867 624 Sprint
2386 838 530 600 AT&T Data Communications Serv
4323 796 637 218 Time Warner Telecom
18566 741 208 6 Covad Communications
6197 731 365 351 BellSouth Network Solutions,
721 720 21028 297 DLA Systems Automation Center
209 628 3465 497 Qwest
3356 589 10923 448 Level 3 Communications, LLC
20115 587 425 300 Charter Communications
3561 573 2513 385 Cable & Wireless USA
852 511 1141 397 Telus Advanced Communications
7843 491 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
6198 429 396 199 BellSouth Network Solutions,
705 427 162 270 UUNET Technologies, Inc.
5668 399 87 18 Century Telephone
22773 398 960 18 Cox Communications, Inc. Atla
376 394 359 112 Reseau Interordinateurs Scien
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 207 114 184 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,
8866 150 18 19 Bulgarian Telecommunication C
5400 149 206 121 BT Ignite European Backbone
25186 149 154 106 France Telecom Transpac's Tra
3303 146 609 129 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
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 212 13 7 NSS, S.A.
11172 201 99 51 Servicios Alestra S.A de C.V
6147 195 94 20 Telefonica Del Peru
11664 172 12 36 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 86 7 37 ANDINATEL S.A.
6535 85 7 19 Chilesat Servicios Empresari
11311 83 8 22 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 741 735 Covad Communications
4134 838 680 Data Communications Bureau
4323 796 578 Time Warner Telecom
9583 531 425 Satyam Infoway Ltd.,
721 720 423 DLA Systems Automation Center
7843 491 393 Adelphia Corp.
5668 399 381 Century Telephone
6197 731 380 BellSouth Network Solutions,
22773 398 380 Cox Communications, Inc. Atla
27364 394 375 Armstrong Cable Services
6467 393 363 E.Spire Communications, Inc.
701 1278 357 UUNET Technologies, Inc.
22909 377 339 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
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
65010 PRIVATE 64.192.10.0/23 7911 Williams Communicati
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
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 /14:306 /15:541 /16:8079 /17:2226 /18:3860
/19:9818 /20:10339 /21:7820 /22:10811 /23:12432 /24:80538
/25:238 /26:206 /27:114 /28:58 /29:44 /30:107
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 741 Covad Communications
2386 605 838 AT&T Data Communications Serv
6197 582 731 BellSouth Network Solutions,
7018 554 1408 AT&T WorldNet Services
702 390 639 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
1239 376 941 Sprint
9583 368 531 Satyam Infoway Ltd.,
4766 363 544 Korea Internet Exchange for "
701 360 1278 UUNET Technologies, Inc.
5668 347 399 Century Telephone
6198 315 429 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
21502 265 268 NUMERICABLE is a cabled netwo
4323 248 796 Time Warner Telecom
3320 246 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:4 12:1397 13:1 15:5 16:2
17:3 18:1 20:6 24:727 32:66 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:520 62:502 63:1846
64:2389 65:2050 66:2503 67:386 68:547 69:717
70:75 80:522 81:553 82:312 83:165 84:33
111:1 128:120 129:169 130:87 131:187 132:35
134:188 135:17 136:181 137:55 138:182 139:36
140:193 141:107 142:118 143:67 144:159 145:42
146:292 147:94 148:393 149:108 150:87 151:65
152:153 153:68 154:2 155:127 156:58 157:71
158:142 159:163 160:56 161:71 162:374 163:80
164:214 165:161 166:118 167:224 168:327 169:120
170:271 171:9 192:5570 193:2911 194:2126 195:1488
196:644 198:3645 199:3286 200:3663 201:20 202:4875
203:5695 204:3252 205:2088 206:2317 207:2593 208:2178
209:2998 210:1484 211:622 212:1106 213:1196 214:132
215:31 216:3686 217:1022 218:175 219:102 220:256
221:37 222:43
End of report
