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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 04 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169247
Prefixes after maximum aggregation: 97046
Unique aggregates announced to Internet: 82001
Total ASes present in the Internet Routing Table: 20391
Origin-only ASes present in the Internet Routing Table: 17752
Origin ASes announcing only one prefix: 8409
Transit ASes present in the Internet Routing Table: 2639
Transit-only ASes present in the Internet Routing Table: 69
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: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 65
Number of addresses announced to Internet: 1415185792
Equivalent to 84 /8s, 90 /16s and 5 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80444
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35177
Total APNIC prefixes after maximum aggregation: 15792
Prefixes being announced from the APNIC address blocks: 33035
Unique aggregates announced from the APNIC address blocks: 16586
APNIC Region origin ASes present in the Internet Routing Table: 2349
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 358
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 196034816
Equivalent to 11 /8s, 175 /16s and 65 /24s
Percentage of available APNIC address space announced: 72.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
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: 90201
Total ARIN prefixes after maximum aggregation: 54972
Prefixes being announced from the ARIN address blocks: 70479
Unique aggregates announced from the ARIN address blocks: 25974
ARIN Region origin ASes present in the Internet Routing Table: 10158
ARIN Region origin ASes announcing only one prefix: 3755
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 263847680
Equivalent to 15 /8s, 185 /16s and 255 /24s
Percentage of available ARIN address space announced: 65.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32723
Total RIPE prefixes after maximum aggregation: 22323
Prefixes being announced from the RIPE address blocks: 29764
Unique aggregates announced from the RIPE address blocks: 20060
RIPE Region origin ASes present in the Internet Routing Table: 7052
RIPE Region origin ASes announcing only one prefix: 3720
RIPE Region transit ASes present in the Internet Routing Table: 1165
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 216720000
Equivalent to 12 /8s, 234 /16s and 226 /24s
Percentage of available RIPE address space announced: 64.6
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 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, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9419
Total LACNIC prefixes after maximum aggregation: 3167
Prefixes being announced from the LACNIC address blocks: 7781
Unique aggregates announced from the LACNIC address blocks: 4483
LACNIC Region origin ASes present in the Internet Routing Table: 633
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 21912576
Equivalent to 1 /8s, 78 /16s and 92 /24s
Percentage of available LACNIC address space announced: 32.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1705
Total AfriNIC prefixes after maximum aggregation: 792
Prefixes being announced from the AfriNIC address blocks: 1034
Unique aggregates announced from the AfriNIC address blocks: 788
AfriNIC Region origin ASes present in the Internet Routing Table: 136
AfriNIC Region origin ASes announcing only one prefix: 41
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2647296
Equivalent to 0 /8s, 40 /16s and 101 /24s
Percentage of available AfriNIC address space announced: 7.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 967 5596 196 CHINANET-BACKBONE
9583 779 77 14 Sify Limited
1221 751 1327 519 Telstra Pty Ltd
4755 705 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 518 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 336 1788 313 SINET Japan
9498 336 115 59 BHARTI BT INTERNET LTD.
9929 334 224 46 China Netcom Corp.
17557 326 23 153 Pakistan Telecom
17488 319 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 297 53 158 Wantree Development
18302 296 109 160 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 262 208 UUNET - Commercial IP service
9800 244 386 65 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1510 6375 985 AT&T WorldNet Services
4323 1161 705 224 Time Warner Telecom
174 1114 5852 1018 Cogent Communications
721 1081 21922 312 DLA Systems Automation Center
701 996 8119 840 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 899 513 671 AT&T Data Communications Serv
1239 864 2850 609 Sprint
18566 840 224 20 Covad Communications
20115 624 489 327 Charter Communications
209 622 3454 486 Qwest
3356 573 10661 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 551 125 106 Sprint Canada, Inc.
3561 537 2401 418 Savvis
22773 502 1352 27 Cox Communications, Inc.
5668 497 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 459 4949 393 SBC Internet Services
19262 450 1370 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 2000 482 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 293 3232 240 Deutsche Telekom AG
8220 264 474 260 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 233 262 213 Romania Data Systems S.A.
3246 229 469 222 Song Networks
1257 197 712 175 SWIPnet Swedish IP Network
9121 191 288 40 TTnet Autonomous System
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
3269 171 1557 68 TELECOM ITALIA
5400 167 289 141 BT Ignite European Backbone
8866 166 20 7 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 155 184 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
8551 138 120 20 Bezeq International
3215 136 1165 80 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 168 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 241 83 57 Servicios Alestra S.A de C.V
6147 194 110 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
19632 173 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 154 10 5 Telefonica del Sur S.A.
7303 143 68 15 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 122 89 86 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
13999 109 52 9 Mega Cable S.A. de C.V.
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 95 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 263 692 221 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 105 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 88 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 43 149 33 Telkom SA Ltd
9129 39 3 4 UUNET Kenya
12455 39 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 3 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1161 937 Time Warner Telecom
18566 840 820 Covad Communications
4134 967 771 CHINANET-BACKBONE
721 1081 769 DLA Systems Automation Center
9583 779 765 Sify Limited
4755 705 641 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 502 475 Cox Communications, Inc.
5668 497 474 CenturyTel Internet Holdings,
3602 551 445 Sprint Canada, Inc.
7545 518 445 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 423 350 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
11492 325 318 Cable One
4766 602 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
9443 386 307 Primus Telecommunications
15270 333 306 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
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
64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt
64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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
192.96.1.0/24 3741 The Internet Solution
192.96.2.0/24 2018 Tertiary Education Network
192.96.3.0/24 3741 The Internet Solution
192.96.5.0/24 2018 Tertiary Education Network
192.96.7.0/24 2018 Tertiary Education Network
192.96.8.0/24 2018 Tertiary Education Network
192.96.10.0/24 5713 Telkom SA Ltd
192.96.11.0/24 2018 Tertiary Education Network
192.96.12.0/24 2018 Tertiary Education Network
192.96.13.0/24 16637 Johnnic e-Ventures
192.96.14.0/24 16637 Johnnic e-Ventures
192.96.15.0/24 2018 Tertiary Education Network
192.96.20.0/23 2018 Tertiary Education Network
192.96.22.0/24 7460 LIA Internet Access
192.96.25.0/24 6083 Olivetti Africa
192.96.32.0/24 2905 The Internetworking Company o
192.96.34.0/24 10474 NetActive ISP
192.96.36.0/24 5713 Telkom SA Ltd
192.96.37.0/24 10474 NetActive ISP
192.96.38.0/24 3741 The Internet Solution
192.96.43.0/24 5713 Telkom SA Ltd
192.96.46.0/24 3741 The Internet Solution
192.96.51.0/24 5713 Telkom SA Ltd
192.96.57.0/24 3741 The Internet Solution
192.96.58.0/24 16416 Mycomax
192.96.87.0/24 2905 The Internetworking Company o
192.96.88.0/24 2905 The Internetworking Company o
192.96.89.0/24 3741 The Internet Solution
192.96.90.0/23 3741 The Internet Solution
192.96.92.0/24 3741 The Internet Solution
192.96.94.0/23 3741 The Internet Solution
192.96.96.0/24 2905 The Internetworking Company o
192.96.97.0/24 2905 The Internetworking Company o
192.96.98.0/23 2905 The Internetworking Company o
192.96.109.0/24 2018 Tertiary Education Network
192.96.120.0/21 3741 The Internet Solution
192.96.128.0/22 3741 The Internet Solution
192.96.132.0/24 3741 The Internet Solution
192.96.133.0/24 3741 The Internet Solution
192.96.134.0/24 3741 The Internet Solution
192.96.139.0/24 3741 The Internet Solution
192.96.140.0/24 2018 Tertiary Education Network
192.96.142.0/24 2018 Tertiary Education Network
192.96.147.0/24 2905 The Internetworking Company o
192.96.150.0/24 3741 The Internet Solution
192.96.177.0/24 6083 Olivetti Africa
192.96.193.0/24 3741 The Internet Solution
192.96.194.0/24 3741 The Internet Solution
192.96.247.0/24 2018 Tertiary Education Network
192.96.248.0/23 2018 Tertiary Education Network
192.96.250.0/24 2018 Tertiary Education Network
192.96.251.0/24 3741 The Internet Solution
192.96.252.0/24 2018 Tertiary Education Network
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 /8:17 /9:3 /10:8 /11:17 /12:77
/13:171 /14:320 /15:624 /16:8477 /17:2699 /18:4613
/19:10692 /20:11709 /21:9758 /22:13159 /23:14019 /24:91902
/25:337 /26:312 /27:174 /28:46 /29:23 /30:60
/31:1 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 825 840 Covad Communications
6197 770 947 BellSouth Network Solutions,
7018 718 1510 AT&T WorldNet Services
2386 611 899 AT&T Data Communications Serv
9583 599 779 Sify Limited
4323 554 1161 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 497 CenturyTel Internet Holdings,
1239 364 864 Sprint
702 363 590 UUNET - Commercial IP service
19916 363 369 OLM LLC
7011 348 403 Citizens Utilities
6198 345 472 BellSouth Network Solutions,
11492 317 325 Cable One
6517 304 330 Yipes Communications, Inc.
15270 303 333 PaeTec.net -a division of Pae
701 284 996 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
6467 277 423 E.Spire Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 11:1 12:1571 13:1 15:9
16:2 17:3 18:3 20:22 24:1067 30:3
32:61 38:146 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:155 59:65 60:120
61:719 62:769 63:1881 64:2841 65:2059 66:2888
67:599 68:606 69:1179 70:172 71:11 72:352
80:608 81:536 82:466 83:303 84:228 85:305
86:95 87:9 128:146 129:168 130:94 131:293
132:37 133:1 134:145 135:42 136:151 137:65
138:165 139:61 140:424 141:105 142:145 143:137
144:214 145:34 146:293 147:116 148:297 149:182
150:107 151:67 152:108 153:92 154:5 155:150
156:80 157:97 158:165 159:169 160:85 161:73
162:224 163:115 164:188 165:195 166:154 167:246
168:438 169:142 170:315 171:8 190:1 192:5717
193:3280 194:2396 195:1567 196:657 198:3844 199:3274
200:4153 201:315 202:6065 203:6330 204:3771 205:2073
206:2460 207:2824 208:2028 209:3351 210:1691 211:809
212:1208 213:1355 214:288 215:36 216:3590 217:1127
218:216 219:134 220:443 221:260 222:124
End of report
