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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 24 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158392
Prefixes after maximum aggregation: 92462
Unique aggregates announced to Internet: 76191
Total ASes present in the Internet Routing Table: 19219
Origin-only ASes present in the Internet Routing Table: 16718
Origin ASes announcing only one prefix: 7788
Transit ASes present in the Internet Routing Table: 2501
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 28
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1388152868
Equivalent to 82 /8s, 189 /16s and 136 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73902
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32066
Total APNIC prefixes after maximum aggregation: 15248
Prefixes being announced from the APNIC address blocks: 29979
Unique aggregates announced from the APNIC address blocks: 15268
APNIC Region origin ASes present in the Internet Routing Table: 2227
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 179174784
Equivalent to 10 /8s, 173 /16s and 253 /24s
Percentage of available APNIC address space announced: 66.5
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: 87882
Total ARIN prefixes after maximum aggregation: 53382
Prefixes being announced from the ARIN address blocks: 67238
Unique aggregates announced from the ARIN address blocks: 24707
ARIN Region origin ASes present in the Internet Routing Table: 9965
ARIN Region origin ASes announcing only one prefix: 3606
ARIN Region transit ASes present in the Internet Routing Table: 952
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 242817792
Equivalent to 14 /8s, 121 /16s and 27 /24s
Percentage of available ARIN address space announced: 72.4
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: 30155
Total RIPE prefixes after maximum aggregation: 20724
Prefixes being announced from the RIPE address blocks: 27178
Unique aggregates announced from the RIPE address blocks: 17992
RIPE Region origin ASes present in the Internet Routing Table: 6432
RIPE Region origin ASes announcing only one prefix: 3382
RIPE Region transit ASes present in the Internet Routing Table: 1089
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 195426256
Equivalent to 11 /8s, 165 /16s and 247 /24s
Percentage of available RIPE address space announced: 68.5
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, 33792-35839
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: 6877
Total LACNIC prefixes after maximum aggregation: 2414
Prefixes being announced from the LACNIC address blocks: 6918
Unique aggregates announced from the LACNIC address blocks: 3989
LACNIC Region origin ASes present in the Internet Routing Table: 432
LACNIC Region origin ASes announcing only one prefix: 129
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17828608
Equivalent to 1 /8s, 16 /16s and 11 /24s
Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1385
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 901
Unique aggregates announced from the AfriNIC address blocks: 720
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 23
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: 2189824
Equivalent to 0 /8s, 33 /16s and 106 /24s
Percentage of available AfriNIC address space announced: 13.1
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 892 4761 177 CHINANET-BACKBONE
1221 786 1191 559 Telstra Pty Ltd
9583 628 50 31 Sify Limited
4766 581 3415 274 Korea Telecom (KIX)
4755 500 242 105 Videsh Sanchar Nigam Ltd. Aut
7545 466 86 70 TPG Internet Pty Ltd
17676 421 6364 78 Softbank BB Corp.
9443 374 77 79 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
17557 358 25 158 Pakistan Telecom
2907 347 1823 321 SINET Japan
10036 305 28 278 C&M Communication Co. Ltd.
4808 300 247 161 CNCGROUP IP network: China169
7474 290 267 210 SingTel Optus Pty Ltd
4802 282 47 166 Wantree Development
9498 262 82 53 BHARTI BT INTERNET LTD.
2764 256 238 204 AAPT Limited
703 249 279 207 UUNET - Commercial IP service
9800 235 386 69 CHINA UNICOM
17974 233 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1463 6561 970 AT&T WorldNet Services
721 1120 21763 314 DLA Systems Automation Center
4323 1083 663 224 Time Warner Telecom
701 1019 8283 866 UUNET Technologies, Inc.
174 923 5568 783 Cogent Communications
1239 914 2868 660 Sprint
6197 878 383 413 BellSouth Network Solutions,
2386 832 500 613 AT&T Data Communications Serv
18566 780 208 6 Covad Communications
209 639 3476 501 Qwest
20115 590 490 307 Charter Communications
3356 582 10867 430 Level 3 Communications, LLC
852 542 1095 401 Telus Advanced Communications
3561 538 2370 414 Savvis
3602 506 121 93 Sprint Canada, Inc.
6478 496 831 115 AT&T Worldnet Services
22773 473 1186 20 Cox Communications, Inc.
6198 469 554 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 460 115 17 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 2004 494 UUNET - Commercial IP service
3320 296 2992 231 Deutsche Telekom AG
3301 288 1116 278 TeliaNet Sweden
8220 276 466 270 COLT Telecommunications
680 254 2041 239 DFN-IP service G-WiN
3246 231 475 225 Song Networks
8708 225 251 203 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
9121 203 239 44 TTnet Autonomous System
1257 201 712 177 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 173 19 20 Bulgarian Telecommunication C
3269 166 1456 72 TELECOM ITALIA
6746 162 47 142 Dynamic Network Technologies,
719 158 322 99 LANLINK autonomous system
3300 153 184 86 AUCS Communications Services
6830 143 529 28 UPC Distribution Services
5400 142 281 124 BT Ignite European Backbone
25186 142 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 384 140 71 ImpSat
8151 340 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 214 99 52 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 132 90 88 Global One Communicaoes Ltda
14117 119 8 4 Telefonica del Sur S.A.
6503 103 145 73 AVANTEL, S.A.
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
6535 87 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
7738 75 298 16 Telecomunicacoes da Bahia S.A
6471 73 73 27 ENTEL CHILE 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 90 16 2 Noor Advanced Technologies AS
2905 74 266 68 The Internetworking Company o
24835 58 34 6 RAYA Telecom - Egypt
8452 55 20 5 TEDATA
12455 42 7 4 Jambonet Autonomous system
9129 39 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 18 3 5 LIA Internet Access
8346 18 10 11 SONATEL-AS Autonomous System
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
15808 16 1 1 Communication Solutions Ltd i
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 1083 859 Time Warner Telecom
721 1120 806 DLA Systems Automation Center
18566 780 774 Covad Communications
4134 892 715 CHINANET-BACKBONE
9583 628 597 Sify Limited
6197 878 465 BellSouth Network Solutions,
22773 473 453 Cox Communications, Inc.
27364 465 447 Armstrong Cable Services
5668 460 443 CenturyTel Internet Holdings,
3602 506 413 Sprint Canada, Inc.
7545 466 396 TPG Internet Pty Ltd
4755 500 395 Videsh Sanchar Nigam Ltd. Aut
6478 496 381 AT&T Worldnet Services
6467 407 374 E.Spire Communications, Inc.
17676 421 343 Softbank BB Corp.
6140 384 313 ImpSat
9929 358 313 China Netcom Corp.
4766 581 307 Korea Telecom (KIX)
9443 374 295 Primus Telecommunications
20115 590 283 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
30998 UNALLOCATED 65.120.56.0/21 209 Qwest
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65111 PRIVATE 193.110.55.0/24 24652 Juniper Networks, Eu
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
30998 UNALLOCATED 196.207.0.0/20 209 Qwest
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
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
172.32.0.0/24 7011 Citizens Utilities
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 /12:63
/13:151 /14:305 /15:574 /16:8326 /17:2488 /18:4267
/19:10135 /20:10846 /21:8720 /22:12126 /23:13194 /24:86282
/25:265 /26:259 /27:127 /28:62 /29:26 /30:89
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 765 780 Covad Communications
6197 719 878 BellSouth Network Solutions,
7018 640 1463 AT&T WorldNet Services
2386 586 832 AT&T Data Communications Serv
4323 504 1083 Time Warner Telecom
9583 450 628 Sify Limited
27364 450 465 Armstrong Cable Services
4766 397 581 Korea Telecom (KIX)
5668 383 460 CenturyTel Internet Holdings,
1239 378 914 Sprint
702 367 604 UUNET - Commercial IP service
6198 337 469 BellSouth Network Solutions,
10036 305 305 C&M Communication Co. Ltd.
6467 303 407 E.Spire Communications, Inc.
6517 289 311 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
15270 249 268 PaeTec.net -a division of Pae
13609 247 292 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1509 13:1 15:9 16:2
17:3 18:4 20:4 24:740 32:64 33:4
38:102 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:4 59:11 60:25 61:745
62:536 63:1877 64:2633 65:2080 66:2734 67:511
68:506 69:942 70:73 71:5 72:120 80:538
81:513 82:348 83:250 84:129 85:168 128:146
129:156 130:90 131:281 132:34 133:1 134:144
135:40 136:189 137:66 138:159 139:49 140:193
141:104 142:139 143:130 144:173 145:45 146:281
147:98 148:294 149:167 150:97 151:63 152:109
153:85 154:3 155:143 156:63 157:87 158:167
159:168 160:72 161:60 162:199 163:86 164:215
165:155 166:127 167:228 168:410 169:135 170:311
171:8 172:1 192:5662 193:3105 194:2315 195:1615
196:626 198:3894 199:3256 200:4049 201:59 202:5354
203:6125 204:3733 205:2010 206:2363 207:2713 208:2064
209:3224 210:1636 211:825 212:1177 213:1274 214:241
215:31 216:3682 217:1129 218:190 219:101 220:373
221:119 222:71
End of report
