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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 01 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158933
Prefixes after maximum aggregation: 92604
Unique aggregates announced to Internet: 76360
Total ASes present in the Internet Routing Table: 19265
Origin-only ASes present in the Internet Routing Table: 16778
Origin ASes announcing only one prefix: 7822
Transit ASes present in the Internet Routing Table: 2487
Transit-only ASes present in the Internet Routing Table: 67
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: 29
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1393948288
Equivalent to 83 /8s, 21 /16s and 246 /24s
Percentage of available address space announced: 37.6
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 74121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32211
Total APNIC prefixes after maximum aggregation: 15302
Prefixes being announced from the APNIC address blocks: 30149
Unique aggregates announced from the APNIC address blocks: 15286
APNIC Region origin ASes present in the Internet Routing Table: 2234
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 179939200
Equivalent to 10 /8s, 185 /16s and 167 /24s
Percentage of available APNIC address space announced: 66.8
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: 86562
Total ARIN prefixes after maximum aggregation: 52755
Prefixes being announced from the ARIN address blocks: 67541
Unique aggregates announced from the ARIN address blocks: 24649
ARIN Region origin ASes present in the Internet Routing Table: 9791
ARIN Region origin ASes announcing only one prefix: 3554
ARIN Region transit ASes present in the Internet Routing Table: 921
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 243361792
Equivalent to 14 /8s, 129 /16s and 104 /24s
Percentage of available ARIN address space announced: 69.1
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, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30186
Total RIPE prefixes after maximum aggregation: 20838
Prefixes being announced from the RIPE address blocks: 27227
Unique aggregates announced from the RIPE address blocks: 18088
RIPE Region origin ASes present in the Internet Routing Table: 6473
RIPE Region origin ASes announcing only one prefix: 3406
RIPE Region transit ASes present in the Internet Routing Table: 1077
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 199695296
Equivalent to 11 /8s, 231 /16s and 27 /24s
Percentage of available RIPE address space announced: 70.0
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: 8541
Total LACNIC prefixes after maximum aggregation: 3005
Prefixes being announced from the LACNIC address blocks: 6949
Unique aggregates announced from the LACNIC address blocks: 4073
LACNIC Region origin ASes present in the Internet Routing Table: 608
LACNIC Region origin ASes announcing only one prefix: 187
LACNIC Region transit ASes present in the Internet Routing Table: 109
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17996288
Equivalent to 1 /8s, 18 /16s and 154 /24s
Percentage of available LACNIC address space announced: 53.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1399
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 903
Unique aggregates announced from the AfriNIC address blocks: 721
AfriNIC Region origin ASes present in the Internet Routing Table: 98
AfriNIC Region origin ASes announcing only one prefix: 24
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: 2190336
Equivalent to 0 /8s, 33 /16s and 108 /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 897 4827 180 CHINANET-BACKBONE
1221 786 1193 558 Telstra Pty Ltd
9583 652 51 40 Sify Limited
4766 584 3415 276 Korea Telecom (KIX)
4755 517 243 113 Videsh Sanchar Nigam Ltd. Aut
7545 472 85 58 TPG Internet Pty Ltd
17676 426 6444 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 343 1823 319 SINET Japan
17557 341 24 159 Pakistan Telecom
10036 306 28 279 C&M Communication Co. Ltd.
4808 302 248 163 CNCGROUP IP network: China169
7474 291 268 211 SingTel Optus Pty Ltd
4802 283 47 167 Wantree Development
9498 260 82 52 BHARTI BT INTERNET LTD.
2764 254 238 202 AAPT Limited
703 253 279 208 UUNET - Commercial IP service
9800 235 386 69 CHINA UNICOM
17974 235 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6562 971 AT&T WorldNet Services
721 1120 21763 314 DLA Systems Automation Center
4323 1092 663 222 Time Warner Telecom
701 1018 8283 867 UUNET Technologies, Inc.
174 993 5577 844 Cogent Communications
1239 910 2865 657 Sprint
6197 883 384 413 BellSouth Network Solutions,
2386 836 500 618 AT&T Data Communications Serv
18566 780 208 6 Covad Communications
209 647 3475 501 Qwest
20115 597 494 309 Charter Communications
3356 583 10852 431 Level 3 Communications, LLC
3561 540 2370 416 Savvis
852 538 1095 397 Telus Advanced Communications
6478 511 833 114 AT&T Worldnet Services
3602 507 121 93 Sprint Canada, Inc.
5668 477 115 25 CenturyTel Internet Holdings,
22773 475 1188 21 Cox Communications, Inc.
6198 468 541 198 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 2003 494 UUNET - Commercial IP service
3320 300 2992 235 Deutsche Telekom AG
3301 297 1117 287 TeliaNet Sweden
8220 277 466 271 COLT Telecommunications
680 254 2041 239 DFN-IP service G-WiN
3246 231 475 225 Song Networks
8708 227 251 206 Romania Data Systems S.A.
9121 212 243 47 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
3269 167 1472 73 TELECOM ITALIA
6746 161 47 141 Dynamic Network Technologies,
719 157 322 99 LANLINK autonomous system
8866 157 21 12 Bulgarian Telecommunication C
3300 153 184 86 AUCS Communications Services
5400 143 281 126 BT Ignite European Backbone
6830 143 529 28 UPC Distribution Services
25186 142 138 100 France Telecom Transpac's Tra
9051 127 8 37 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 348 527 145 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
19632 190 14 7 Metropolis Intercom S.A.
11664 151 19 23 Keytech SA
7303 148 67 28 Telecom Argentina Stet-France
6505 132 90 88 Global One Communicaoes Ltda
14117 119 8 4 Telefonica del Sur S.A.
22047 116 96 6 VTR PUNTO NET S.A.
6503 102 145 72 AVANTEL, S.A.
18822 102 6 14 TELEFONICA MANQUEHUE
11556 99 49 5 Cable-Wireless Panama
13999 99 52 9 Mega Cable S.A. de C.V.
19169 93 6 16 Telconet
6535 87 7 23 Chilesat Servicios Empresari
23216 87 24 24 RAMtelecom Telecomunicaciones
11311 85 8 21 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 82 32 7 Prima 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 116 15 19 Internet Egypt Network
20928 91 16 2 Noor Advanced Technologies AS
2018 90 295 87 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
8452 57 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
12455 42 7 5 Jambonet Autonomous system
9129 40 3 2 UUNET Kenya
6713 37 54 9 Itissalat Al-MAGHRIB
5713 35 141 28 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
21280 18 2 3 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15475 17 84 4 Nile Online
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
0 0 65531 *
4323 1092 870 Time Warner Telecom
721 1120 806 DLA Systems Automation Center
18566 780 774 Covad Communications
4134 897 717 CHINANET-BACKBONE
9583 652 612 Sify Limited
6197 883 470 BellSouth Network Solutions,
22773 475 454 Cox Communications, Inc.
5668 477 452 CenturyTel Internet Holdings,
27364 465 447 Armstrong Cable Services
3602 507 414 Sprint Canada, Inc.
7545 472 414 TPG Internet Pty Ltd
4755 517 404 Videsh Sanchar Nigam Ltd. Aut
6478 511 397 AT&T Worldnet Services
6467 425 389 E.Spire Communications, Inc.
17676 426 353 Softbank BB Corp.
9929 358 313 China Netcom Corp.
6140 383 312 ImpSat
4766 584 308 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.163.0/24 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 64.111.166.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.168.0/24 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
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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 /11:15 /12:65
/13:150 /14:307 /15:577 /16:8325 /17:2506 /18:4291
/19:10151 /20:10902 /21:8755 /22:12120 /23:13176 /24:86666
/25:279 /26:269 /27:133 /28:61 /29:23 /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 724 883 BellSouth Network Solutions,
7018 656 1482 AT&T WorldNet Services
2386 589 836 AT&T Data Communications Serv
4323 505 1092 Time Warner Telecom
9583 474 652 Sify Limited
27364 450 465 Armstrong Cable Services
5668 401 477 CenturyTel Internet Holdings,
4766 400 584 Korea Telecom (KIX)
1239 378 910 Sprint
702 368 604 UUNET - Commercial IP service
6198 337 468 BellSouth Network Solutions,
6467 314 425 E.Spire Communications, Inc.
10036 306 306 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 264 311 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 8:12 12:1511 13:1 15:9 16:2
17:3 18:4 20:4 24:746 32:64 33:4
38:103 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:6 59:12 60:25 61:740
62:553 63:1876 64:2653 65:2073 66:2733 67:511
68:508 69:962 70:76 71:5 72:119 80:538
81:495 82:401 83:257 84:129 85:205 128:141
129:159 130:90 131:280 132:35 133:1 134:144
135:40 136:191 137:67 138:159 139:52 140:193
141:106 142:137 143:128 144:173 145:32 146:281
147:101 148:291 149:167 150:97 151:63 152:107
153:87 154:4 155:143 156:68 157:86 158:167
159:172 160:73 161:60 162:200 163:83 164:203
165:161 166:153 167:230 168:414 169:137 170:311
171:8 172:1 192:5663 193:3107 194:2317 195:1536
196:629 198:3900 199:3272 200:4070 201:60 202:5366
203:6127 204:3785 205:2022 206:2398 207:2715 208:2081
209:3258 210:1655 211:826 212:1188 213:1265 214:243
215:31 216:3697 217:1153 218:189 219:104 220:370
221:136 222:73
End of report
