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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 03 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156716
Prefixes after maximum aggregation: 91778
Unique aggregates announced to Internet: 75761
Total ASes present in the Internet Routing Table: 19062
Origin-only ASes present in the Internet Routing Table: 16580
Origin ASes announcing only one prefix: 7736
Transit ASes present in the Internet Routing Table: 2482
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: 19
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: 1380693284
Equivalent to 82 /8s, 75 /16s and 181 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72985
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31208
Total APNIC prefixes after maximum aggregation: 15196
Prefixes being announced from the APNIC address blocks: 29246
Unique aggregates announced from the APNIC address blocks: 15190
APNIC Region origin ASes present in the Internet Routing Table: 2216
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 175770560
Equivalent to 10 /8s, 122 /16s and 11 /24s
Percentage of available APNIC address space announced: 65.2
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: 87440
Total ARIN prefixes after maximum aggregation: 52951
Prefixes being announced from the ARIN address blocks: 66759
Unique aggregates announced from the ARIN address blocks: 24437
ARIN Region origin ASes present in the Internet Routing Table: 9892
ARIN Region origin ASes announcing only one prefix: 3570
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: 17
Number of ARIN addresses announced to Internet: 240018688
Equivalent to 14 /8s, 78 /16s and 101 /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: 29778
Total RIPE prefixes after maximum aggregation: 20511
Prefixes being announced from the RIPE address blocks: 26703
Unique aggregates announced from the RIPE address blocks: 17712
RIPE Region origin ASes present in the Internet Routing Table: 6360
RIPE Region origin ASes announcing only one prefix: 3364
RIPE Region transit ASes present in the Internet Routing Table: 1075
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193453648
Equivalent to 11 /8s, 135 /16s and 222 /24s
Percentage of available RIPE address space announced: 67.8
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: 6888
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6806
Unique aggregates announced from the LACNIC address blocks: 4014
LACNIC Region origin ASes present in the Internet Routing Table: 422
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: 19
Number of LACNIC addresses announced to Internet: 17669376
Equivalent to 1 /8s, 13 /16s and 157 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1395
Total AfriNIC prefixes after maximum aggregation: 712
Prefixes being announced from the AfriNIC address blocks: 912
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 792 1189 564 Telstra Pty Ltd
9583 605 49 19 Satyam Infoway Ltd.,
4766 585 3415 280 Korea Internet Exchange for "
4755 474 241 102 Videsh Sanchar Nigam Ltd. Aut
17676 403 6060 70 XTAGE CORPORATION
7545 383 59 191 TPG Internet Pty Ltd
9443 374 77 79 Primus Telecommunications
9929 354 166 38 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 328 25 151 Pakistan Telecom
10036 299 27 272 C&M Communication Co. Ltd.
7474 277 282 200 Optus Communications Pty Ltd
703 272 355 214 UUNET
2764 253 236 203 connect.com.au pty ltd
9498 248 82 55 BHARTI BT INTERNET LTD.
9800 239 394 70 CHINA UNICOM
4808 238 170 129 CHINANET core WAN North
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
4802 230 28 139 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1473 6594 969 AT&T WorldNet Services
721 1146 21771 318 DLA Systems Automation Center
4323 1051 668 220 Time Warner Telecom
701 1017 8304 870 UUNET Technologies, Inc.
1239 925 2872 658 Sprint
6197 869 379 407 BellSouth Network Solutions,
2386 820 498 609 AT&T Data Communications Serv
18566 773 208 6 Covad Communications
174 735 5526 639 PSINet Inc.
209 649 3466 501 Qwest
3356 584 10866 435 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 561 2374 416 Cable & Wireless USA
852 535 1111 404 Telus Advanced Communications
6478 501 830 103 AT&T Worldnet Services
3602 499 120 93 Sprint Canada, Inc.
22773 475 1090 24 Cox Communications, Inc. Atla
6198 467 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 453 92 20 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2006 498 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 276 466 270 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 226 472 220 Song Networks
8708 221 120 199 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 207 708 173 SWIPnet Swedish IP Network
3215 205 1042 79 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
3300 163 184 83 AUCS Communications Services
6746 162 47 143 Dynamic Network Technologies,
719 159 322 101 LANLINK autonomous system
9121 152 228 24 TTnet Autonomous System
25186 142 138 100 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 361 140 70 ImpSat
8151 337 505 142 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 114 145 75 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 90 52 9 Mega Cable S.A. de C.V.
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
14420 86 6 41 ANDINATEL S.A.
5639 83 12 9 Telecommunications Services o
10481 79 32 7 Prima S.A.
15311 77 24 36 Telefonica Empresas
7738 76 298 16 Telecomunicacoes da Bahia S.A
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 87 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 54 20 5 TEDATA
24835 53 34 6 RAYA Telecom - Egypt
11845 42 9 11 Data Pro Business Online
9129 36 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 31 7 8 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 25 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
21280 18 2 3 Swift Global Kenya Ltd.Is an
8346 17 10 11 SONATEL-AS Autonomous System
15475 16 84 4 Nile Online
21491 16 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1051 831 Time Warner Telecom
721 1146 828 DLA Systems Automation Center
18566 773 767 Covad Communications
4134 886 712 Data Communications Bureau
9583 605 586 Satyam Infoway Ltd.,
6197 869 462 BellSouth Network Solutions,
22773 475 451 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 453 433 Century Telephone
3602 499 406 Sprint Canada, Inc.
6478 501 398 AT&T Worldnet Services
4755 474 372 Videsh Sanchar Nigam Ltd. Aut
17676 403 333 XTAGE CORPORATION
6467 359 326 E.Spire Communications, Inc.
9929 354 316 China Netcom Corp.
4766 585 305 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
6140 361 291 ImpSat
20115 579 279 Charter Communications
6198 467 278 BellSouth Network Solutions,
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 /15:568 /16:8298 /17:2432 /18:4148
/19:10092 /20:10740 /21:8585 /22:11912 /23:13065 /24:85497
/25:270 /26:246 /27:107 /28:50 /29:24 /30:83
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 758 773 Covad Communications
6197 712 869 BellSouth Network Solutions,
7018 638 1473 AT&T WorldNet Services
2386 583 820 AT&T Data Communications Serv
4323 484 1051 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 429 605 Satyam Infoway Ltd.,
4766 402 585 Korea Internet Exchange for "
5668 382 453 Century Telephone
1239 373 925 Sprint
702 369 607 UUNET - Commercial IP service
6198 334 467 BellSouth Network Solutions,
10036 299 299 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 278 354 China Netcom Corp.
6467 271 359 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
15270 241 260 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1489 13:1 15:9 16:2
17:3 18:4 20:5 24:736 32:64 33:4
38:97 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:1 59:5 60:21 61:708
62:517 63:1867 64:2580 65:2053 66:2704 67:522
68:506 69:901 70:66 71:11 72:78 80:547
81:524 82:328 83:261 84:133 85:139 128:137
129:162 130:94 131:278 132:35 133:1 134:142
135:30 136:189 137:65 138:156 139:53 140:198
141:101 142:139 143:129 144:172 145:45 146:279
147:100 148:269 149:162 150:95 151:63 152:110
153:85 154:3 155:144 156:71 157:81 158:152
159:166 160:66 161:59 162:420 163:85 164:209
165:164 166:129 167:226 168:400 169:133 170:310
171:9 192:5666 193:3109 194:2284 195:1590 196:640
198:3893 199:3305 200:3984 201:53 202:5177 203:5992
204:3708 205:2022 206:2336 207:2716 208:2091 209:3175
210:1602 211:796 212:1173 213:1251 214:239 215:31
216:3654 217:1080 218:189 219:107 220:365 221:91
222:72
End of report
