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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 28 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156613
Prefixes after maximum aggregation: 91701
Unique aggregates announced to Internet: 75790
Total ASes present in the Internet Routing Table: 19024
Origin-only ASes present in the Internet Routing Table: 16548
Origin ASes announcing only one prefix: 7711
Transit ASes present in the Internet Routing Table: 2476
Transit-only ASes present in the Internet Routing Table: 79
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1379918816
Equivalent to 82 /8s, 63 /16s and 227 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72858
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31223
Total APNIC prefixes after maximum aggregation: 15143
Prefixes being announced from the APNIC address blocks: 29258
Unique aggregates announced from the APNIC address blocks: 15332
APNIC Region origin ASes present in the Internet Routing Table: 2216
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 175091072
Equivalent to 10 /8s, 111 /16s and 173 /24s
Percentage of available APNIC address space announced: 65.0
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: 87441
Total ARIN prefixes after maximum aggregation: 52966
Prefixes being announced from the ARIN address blocks: 66754
Unique aggregates announced from the ARIN address blocks: 24381
ARIN Region origin ASes present in the Internet Routing Table: 9883
ARIN Region origin ASes announcing only one prefix: 3567
ARIN Region transit ASes present in the Internet Routing Table: 946
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 239946240
Equivalent to 14 /8s, 77 /16s and 74 /24s
Percentage of available ARIN address space announced: 71.5
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, 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: 29719
Total RIPE prefixes after maximum aggregation: 20474
Prefixes being announced from the RIPE address blocks: 26617
Unique aggregates announced from the RIPE address blocks: 17655
RIPE Region origin ASes present in the Internet Routing Table: 6334
RIPE Region origin ASes announcing only one prefix: 3343
RIPE Region transit ASes present in the Internet Routing Table: 1073
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 193163856
Equivalent to 11 /8s, 131 /16s and 114 /24s
Percentage of available RIPE address space announced: 67.7
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: 6861
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6778
Unique aggregates announced from the LACNIC address blocks: 3999
LACNIC Region origin ASes present in the Internet Routing Table: 419
LACNIC Region origin ASes announcing only one prefix: 125
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: 17623040
Equivalent to 1 /8s, 12 /16s and 232 /24s
Percentage of available LACNIC address space announced: 52.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1362
Total AfriNIC prefixes after maximum aggregation: 710
Prefixes being announced from the AfriNIC address blocks: 904
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 790 1187 562 Telstra Pty Ltd
9583 603 49 18 Satyam Infoway Ltd.,
4766 593 3416 284 Korea Internet Exchange for "
4755 470 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 462 74 158 TPG Internet Pty Ltd
17676 403 6060 70 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 353 165 37 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 324 24 149 Pakistan Telecom
10036 296 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 273 355 214 UUNET
2764 258 238 206 connect.com.au pty ltd
9498 242 81 52 BHARTI BT INTERNET LTD.
9800 240 395 71 CHINA UNICOM
4808 237 170 129 CHINANET core WAN North
4802 231 28 140 Wantree Development
17974 231 63 24 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1452 6609 962 AT&T WorldNet Services
721 1170 21835 319 DLA Systems Automation Center
701 1032 8309 877 UUNET Technologies, Inc.
4323 1032 668 220 Time Warner Telecom
1239 926 2872 659 Sprint
6197 868 379 406 BellSouth Network Solutions,
2386 819 495 608 AT&T Data Communications Serv
18566 767 208 6 Covad Communications
174 711 5521 615 PSINet Inc.
209 645 3466 497 Qwest
3356 591 10867 442 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 561 2374 416 Cable & Wireless USA
852 527 1126 399 Telus Advanced Communications
3602 501 120 93 Sprint Canada, Inc.
6478 494 822 104 AT&T Worldnet Services
22773 474 1090 24 Cox Communications, Inc. Atla
6198 468 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 451 91 20 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 2006 501 UUNET - Commercial IP service
3320 296 2992 230 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 219 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 709 174 SWIPnet Swedish IP Network
3215 204 1034 78 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 178 47 142 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3269 163 1424 72 TELECOM ITALIA
719 161 322 103 LANLINK autonomous system
3300 160 184 80 AUCS Communications Services
9121 142 227 20 TTnet Autonomous System
25186 141 138 99 France Telecom Transpac's Tra
5400 139 234 123 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 360 140 69 ImpSat
8151 336 501 143 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 150 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 113 145 75 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
11311 88 8 23 Sinectis S.A.
13999 88 52 9 Mega Cable S.A. de C.V.
6535 87 7 23 Chilesat Servicios Empresari
14420 87 6 42 ANDINATEL S.A.
5639 83 12 9 Telecommunications Services o
10481 81 32 7 Prima S.A.
15311 77 24 36 Telefonica Empresas
4270 75 18 9 Red de Interconexion Universi
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 86 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 48 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 30 3 2 UUNET Kenya
12455 30 6 7 Jambonet Autonomous system
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 1170 851 DLA Systems Automation Center
4323 1032 812 Time Warner Telecom
18566 767 761 Covad Communications
4134 886 712 Data Communications Bureau
9583 603 585 Satyam Infoway Ltd.,
6197 868 462 BellSouth Network Solutions,
22773 474 450 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 451 431 Century Telephone
3602 501 408 Sprint Canada, Inc.
6478 494 390 AT&T Worldnet Services
4755 470 369 Videsh Sanchar Nigam Ltd. Aut
17676 403 333 XTAGE CORPORATION
6467 359 326 E.Spire Communications, Inc.
9929 353 316 China Netcom Corp.
4766 593 309 Korea Internet Exchange for "
7545 462 304 TPG Internet Pty Ltd
9443 374 295 Primus Telecommunications
6140 360 291 ImpSat
20115 579 279 Charter Communications
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
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
192.43.230.0/24 7575 Australian Academic and Rease
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 /14:305 /15:565 /16:8292 /17:2424 /18:4126
/19:10093 /20:10739 /21:8575 /22:11869 /23:13071 /24:85501
/25:266 /26:241 /27:98 /28:49 /29:24 /30:80
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 752 767 Covad Communications
6197 711 868 BellSouth Network Solutions,
7018 631 1452 AT&T WorldNet Services
2386 583 819 AT&T Data Communications Serv
4323 480 1032 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 426 603 Satyam Infoway Ltd.,
4766 404 593 Korea Internet Exchange for "
5668 381 451 Century Telephone
702 372 610 UUNET - Commercial IP service
1239 370 926 Sprint
6198 335 468 BellSouth Network Solutions,
10036 296 296 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 278 353 China Netcom Corp.
6467 271 359 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 246 1032 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
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 32:64 33:4
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:3 60:21 61:707 62:528
63:1862 64:2584 65:2051 66:2708 67:520 68:504
69:906 70:65 71:10 72:72 80:546 81:519
82:331 83:277 84:130 85:127 128:140 129:162
130:94 131:279 132:36 133:1 134:142 135:30
136:189 137:65 138:160 139:53 140:198 141:101
142:140 143:129 144:172 145:44 146:278 147:100
148:267 149:164 150:95 151:63 152:110 153:80
154:3 155:143 156:71 157:81 158:152 159:164
160:67 161:59 162:417 163:84 164:216 165:164
166:130 167:226 168:399 169:133 170:309 171:9
192:5672 193:3086 194:2267 195:1580 196:632 198:3913
199:3319 200:3968 201:52 202:5185 203:6040 204:3685
205:2013 206:2344 207:2728 208:2091 209:3187 210:1579
211:790 212:1174 213:1269 214:240 215:31 216:3648
217:1070 218:190 219:107 220:366 221:89 222:76
End of report
