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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 27 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171132
Prefixes after maximum aggregation: 97450
Unique aggregates announced to Internet: 82461
Total ASes present in the Internet Routing Table: 20579
Origin-only ASes present in the Internet Routing Table: 17889
Origin ASes announcing only one prefix: 8479
Transit ASes present in the Internet Routing Table: 2690
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 36
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1425771136
Equivalent to 84 /8s, 251 /16s and 138 /24s
Percentage of available address space announced: 38.5
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81693
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35484
Total APNIC prefixes after maximum aggregation: 15608
Prefixes being announced from the APNIC address blocks: 33328
Unique aggregates announced from the APNIC address blocks: 16463
APNIC Region origin ASes present in the Internet Routing Table: 2371
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 200259328
Equivalent to 11 /8s, 239 /16s and 183 /24s
Percentage of available APNIC address space announced: 74.3
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: 91243
Total ARIN prefixes after maximum aggregation: 55334
Prefixes being announced from the ARIN address blocks: 71314
Unique aggregates announced from the ARIN address blocks: 26301
ARIN Region origin ASes present in the Internet Routing Table: 10234
ARIN Region origin ASes announcing only one prefix: 3777
ARIN Region transit ASes present in the Internet Routing Table: 953
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270038272
Equivalent to 16 /8s, 24 /16s and 117 /24s
Percentage of available ARIN address space announced: 67.1
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: 33068
Total RIPE prefixes after maximum aggregation: 22480
Prefixes being announced from the RIPE address blocks: 30130
Unique aggregates announced from the RIPE address blocks: 20164
RIPE Region origin ASes present in the Internet Routing Table: 7131
RIPE Region origin ASes announcing only one prefix: 3767
RIPE Region transit ASes present in the Internet Routing Table: 1194
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 36
Number of RIPE addresses announced to Internet: 218673856
Equivalent to 13 /8s, 8 /16s and 178 /24s
Percentage of available RIPE address space announced: 65.2
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, 38912-39935
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: 9564
Total LACNIC prefixes after maximum aggregation: 3211
Prefixes being announced from the LACNIC address blocks: 7910
Unique aggregates announced from the LACNIC address blocks: 4605
LACNIC Region origin ASes present in the Internet Routing Table: 637
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22085120
Equivalent to 1 /8s, 80 /16s and 254 /24s
Percentage of available LACNIC address space announced: 32.9
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: 1751
Total AfriNIC prefixes after maximum aggregation: 817
Prefixes being announced from the AfriNIC address blocks: 1057
Unique aggregates announced from the AfriNIC address blocks: 796
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2732288
Equivalent to 0 /8s, 41 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 8.1
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 984 6080 203 CHINANET-BACKBONE
9583 794 77 12 Sify Limited
1221 750 1328 517 Telstra Pty Ltd
4755 721 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 289 Korea Telecom (KIX)
7545 512 108 72 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 77 Primus Telecommunications
2907 336 1757 313 SINET Japan
9498 336 147 58 BHARTI BT INTERNET LTD.
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 328 23 158 Pakistan Telecom
7474 313 257 216 SingTel Optus Pty Ltd
17974 300 66 13 PT TELEKOMUNIKASI INDONESIA
18302 293 109 155 SK Global co., Ltd
4802 286 65 155 Wantree Development
9837 273 79 174 Powertel Ltd
703 255 263 208 UUNET - Commercial IP service
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1502 6360 984 AT&T WorldNet Services
4323 1175 705 228 Time Warner Telecom
721 1091 21922 308 DLA Systems Automation Center
174 1069 5850 1001 Cogent Communications
701 993 8121 836 UUNET Technologies, Inc.
6197 946 399 481 BellSouth Network Solutions,
2386 921 513 683 AT&T Data Communications Serv
1239 862 2851 606 Sprint
18566 854 240 7 Covad Communications
20115 650 508 330 Charter Communications
209 630 3585 498 Qwest
3356 576 10659 443 Level 3 Communications, LLC
3602 558 132 111 Sprint Canada, Inc.
27364 558 44 18 Armstrong Cable Services
22773 542 1352 29 Cox Communications, Inc.
3561 539 2409 419 Savvis
5668 490 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 466 4950 398 SBC Internet Services
19262 462 1399 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1995 481 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 288 3230 239 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 238 262 217 Romania Data Systems S.A.
3246 228 476 221 Song Networks
9121 227 336 25 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
5515 185 778 127 Sonera Solution Autonomous Sy
6746 185 50 161 Dynamic Network Technologies,
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 165 37 9 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 155 169 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
3215 138 1189 80 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 399 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 249 83 61 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 191 118 21 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 156 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 121 8 25 Telconet
13999 118 52 9 Mega Cable S.A. de C.V.
6503 113 148 74 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 105 13 16 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 95 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 107 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 84 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 37 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 4 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
21491 18 17 2 UTL On-line is RF broadband I
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1175 947 Time Warner Telecom
18566 854 847 Covad Communications
721 1091 783 DLA Systems Automation Center
9583 794 782 Sify Limited
4134 984 781 CHINANET-BACKBONE
4755 721 655 Videsh Sanchar Nigam Ltd. Aut
27364 558 540 Armstrong Cable Services
22773 542 513 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 946 465 BellSouth Network Solutions,
3602 558 447 Sprint Canada, Inc.
7545 512 440 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 393 344 E.Spire Communications, Inc.
19262 462 342 Verizon Global Networks
11492 338 330 Cable One
17488 336 327 Hathway IP Over Cable Interne
4766 611 322 Korea Telecom (KIX)
20115 650 320 Charter Communications
15270 343 315 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
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 /8:17 /9:5 /10:8 /11:17 /12:81
/13:177 /14:322 /15:630 /16:8517 /17:2790 /18:4702
/19:10774 /20:11847 /21:9891 /22:13283 /23:14166 /24:92933
/25:333 /26:295 /27:191 /28:44 /29:14 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 838 854 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 716 1502 AT&T WorldNet Services
2386 632 921 AT&T Data Communications Serv
9583 619 794 Sify Limited
4323 561 1175 Time Warner Telecom
27364 549 558 Armstrong Cable Services
4766 427 611 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 384 609 UUNET - Commercial IP service
1239 367 862 Sprint
7011 364 422 Citizens Utilities
19916 363 369 OLM LLC
6198 346 473 BellSouth Network Solutions,
11492 330 338 Cable One
15270 313 343 PaeTec.net -a division of Pae
6517 311 337 Yipes Communications, Inc.
701 285 993 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
22773 275 542 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1595 13:1 15:10 16:2
17:3 18:3 20:27 24:1082 30:3 32:65
38:157 40:54 44:3 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:140 61:760
62:764 63:1886 64:2874 65:2076 66:2929 67:616
68:625 69:1226 70:193 71:18 72:385 80:627
81:550 82:473 83:306 84:250 85:323 86:121
87:17 125:8 128:154 129:167 130:96 131:295
132:36 133:1 134:145 135:43 136:151 137:66
138:165 139:61 140:429 141:137 142:150 143:141
144:218 145:34 146:300 147:112 148:301 149:184
150:108 151:72 152:113 153:93 154:5 155:140
156:80 157:111 158:164 159:171 160:85 161:75
162:232 163:133 164:191 165:187 166:152 167:251
168:438 169:142 170:316 171:8 190:1 192:5720
193:3310 194:2412 195:1555 196:673 198:3872 199:3238
200:4185 201:331 202:6109 203:6384 204:3805 205:2057
206:2448 207:2812 208:2038 209:3392 210:1665 211:812
212:1187 213:1360 214:301 215:39 216:3723 217:1133
218:221 219:135 220:491 221:282 222:129
End of report
