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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 23 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156530
Prefixes after maximum aggregation: 91395
Unique aggregates announced to Internet: 75327
Total ASes present in the Internet Routing Table: 19024
Origin-only ASes present in the Internet Routing Table: 16536
Origin ASes announcing only one prefix: 7722
Transit ASes present in the Internet Routing Table: 2488
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1378487880
Equivalent to 82 /8s, 42 /16s and 14 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72962
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31159
Total APNIC prefixes after maximum aggregation: 14988
Prefixes being announced from the APNIC address blocks: 29206
Unique aggregates announced from the APNIC address blocks: 14926
APNIC Region origin ASes present in the Internet Routing Table: 2214
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 322
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 174540416
Equivalent to 10 /8s, 103 /16s and 70 /24s
Percentage of available APNIC address space announced: 64.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87449
Total ARIN prefixes after maximum aggregation: 52818
Prefixes being announced from the ARIN address blocks: 66595
Unique aggregates announced from the ARIN address blocks: 24330
ARIN Region origin ASes present in the Internet Routing Table: 9888
ARIN Region origin ASes announcing only one prefix: 3579
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 239556608
Equivalent to 14 /8s, 71 /16s and 88 /24s
Percentage of available ARIN address space announced: 71.4
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, 29696-30719, 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: 29693
Total RIPE prefixes after maximum aggregation: 20454
Prefixes being announced from the RIPE address blocks: 26571
Unique aggregates announced from the RIPE address blocks: 17620
RIPE Region origin ASes present in the Internet Routing Table: 6331
RIPE Region origin ASes announcing only one prefix: 3341
RIPE Region transit ASes present in the Internet Routing Table: 1078
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 192568640
Equivalent to 11 /8s, 122 /16s and 93 /24s
Percentage of available RIPE address space announced: 67.5
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: 6854
Total LACNIC prefixes after maximum aggregation: 2423
Prefixes being announced from the LACNIC address blocks: 6773
Unique aggregates announced from the LACNIC address blocks: 4015
LACNIC Region origin ASes present in the Internet Routing Table: 419
LACNIC Region origin ASes announcing only one prefix: 127
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17574912
Equivalent to 1 /8s, 12 /16s and 44 /24s
Percentage of available LACNIC address space announced: 52.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1356
Total AfriNIC prefixes after maximum aggregation: 712
Prefixes being announced from the AfriNIC address blocks: 908
Unique aggregates announced from the AfriNIC address blocks: 716
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177280
Equivalent to 0 /8s, 33 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 13.0
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 886 4712 174 Data Communications Bureau
1221 787 1185 559 Telstra Pty Ltd
9583 598 49 16 Satyam Infoway Ltd.,
4766 590 3415 281 Korea Internet Exchange for "
7545 501 86 69 TPG Internet Pty Ltd
4755 456 241 99 Videsh Sanchar Nigam Ltd. Aut
17676 399 5996 67 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 353 165 37 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 326 24 149 Pakistan Telecom
10036 293 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 273 355 214 UUNET
2764 260 238 208 connect.com.au pty ltd
4808 237 170 129 CHINANET core WAN North
9498 237 81 53 BHARTI BT INTERNET LTD.
9800 237 383 75 CHINA UNICOM
4802 230 28 139 Wantree Development
9942 220 72 117 COMindico Australia
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1458 6619 971 AT&T WorldNet Services
721 1143 21835 319 DLA Systems Automation Center
701 1029 8308 877 UUNET Technologies, Inc.
4323 1029 668 219 Time Warner Telecom
1239 951 2874 656 Sprint
6197 865 379 405 BellSouth Network Solutions,
2386 823 496 611 AT&T Data Communications Serv
18566 766 208 6 Covad Communications
209 647 3466 499 Qwest
3356 591 10867 442 Level 3 Communications, LLC
20115 582 485 303 Charter Communications
3561 562 2372 418 Cable & Wireless USA
852 525 1126 400 Telus Advanced Communications
174 498 5471 425 PSINet Inc.
3602 498 120 93 Sprint Canada, Inc.
6478 496 821 104 AT&T Worldnet Services
22773 473 1090 24 Cox Communications, Inc. Atla
6198 464 566 188 BellSouth Network Solutions,
27364 464 43 18 Armstrong Cable Services
5668 449 91 19 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 2022 503 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 229 476 223 Song Networks
8708 218 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 204 708 170 SWIPnet Swedish IP Network
3215 203 1025 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 180 47 144 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 175 19 21 Bulgarian Telecommunication C
3269 163 1424 72 TELECOM ITALIA
3300 163 184 84 AUCS Communications Services
719 161 322 103 LANLINK autonomous system
25186 141 138 99 France Telecom Transpac's Tra
5400 139 234 123 BT Ignite European Backbone
9121 130 227 19 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 360 140 74 ImpSat
8151 335 501 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 101 55 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 151 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 117 146 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 93 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
5639 82 8 8 Telecommunications Services o
10481 81 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 85 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 40 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
12455 31 7 8 Jambonet Autonomous system
9129 30 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 17 2 3 Swift Global Kenya Ltd.Is an
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1143 824 DLA Systems Automation Center
4323 1029 810 Time Warner Telecom
18566 766 760 Covad Communications
4134 886 712 Data Communications Bureau
9583 598 582 Satyam Infoway Ltd.,
6197 865 460 BellSouth Network Solutions,
22773 473 449 Cox Communications, Inc. Atla
27364 464 446 Armstrong Cable Services
7545 501 432 TPG Internet Pty Ltd
5668 449 430 Century Telephone
3602 498 405 Sprint Canada, Inc.
6478 496 392 AT&T Worldnet Services
4755 456 357 Videsh Sanchar Nigam Ltd. Aut
6467 367 334 E.Spire Communications, Inc.
17676 399 332 XTAGE CORPORATION
9929 353 316 China Netcom Corp.
4766 590 309 Korea Internet Exchange for "
1239 951 295 Sprint
9443 374 295 Primus Telecommunications
6140 360 286 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
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 /10:8 /11:14 /12:62
/13:148 /14:304 /15:562 /16:8287 /17:2414 /18:4131
/19:10100 /20:10722 /21:8553 /22:11825 /23:13043 /24:85488
/25:297 /26:259 /27:96 /28:49 /29:21 /30:82
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 751 766 Covad Communications
6197 708 865 BellSouth Network Solutions,
7018 634 1458 AT&T WorldNet Services
2386 587 823 AT&T Data Communications Serv
4323 480 1029 Time Warner Telecom
27364 449 464 Armstrong Cable Services
9583 420 598 Satyam Infoway Ltd.,
4766 401 590 Korea Internet Exchange for "
5668 381 449 Century Telephone
1239 370 951 Sprint
702 366 606 UUNET - Commercial IP service
6198 331 464 BellSouth Network Solutions,
10036 293 293 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 278 353 China Netcom Corp.
6467 274 367 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 255 304 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
701 241 1029 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1488 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:65 33:3
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:17 61:669 62:521
63:1863 64:2577 65:2057 66:2738 67:518 68:506
69:929 70:64 71:3 72:65 80:543 81:514
82:360 83:269 84:131 85:113 128:132 129:165
130:96 131:275 132:37 133:1 134:142 135:30
136:213 137:63 138:180 139:53 140:195 141:101
142:140 143:127 144:255 145:44 146:283 147:100
148:265 149:162 150:95 151:63 152:110 153:81
154:2 155:142 156:71 157:81 158:152 159:164
160:68 161:59 162:420 163:84 164:216 165:158
166:130 167:226 168:402 169:133 170:314 171:9
192:5679 193:3081 194:2255 195:1579 196:635 198:3879
199:3292 200:3973 201:49 202:5228 203:6002 204:3655
205:2030 206:2309 207:2703 208:2090 209:3170 210:1571
211:788 212:1163 213:1265 214:242 215:31 216:3663
217:1092 218:190 219:117 220:367 221:90 222:82
End of report
