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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 25 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170547
Prefixes after maximum aggregation: 97205
Unique aggregates announced to Internet: 82107
Total ASes present in the Internet Routing Table: 20533
Origin-only ASes present in the Internet Routing Table: 17850
Origin ASes announcing only one prefix: 8447
Transit ASes present in the Internet Routing Table: 2683
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: 28
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1425270144
Equivalent to 84 /8s, 243 /16s and 229 /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: 81408
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35266
Total APNIC prefixes after maximum aggregation: 15536
Prefixes being announced from the APNIC address blocks: 33064
Unique aggregates announced from the APNIC address blocks: 16193
APNIC Region origin ASes present in the Internet Routing Table: 2360
APNIC Region origin ASes announcing only one prefix: 689
APNIC Region transit ASes present in the Internet Routing Table: 360
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 200171264
Equivalent to 11 /8s, 238 /16s and 95 /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: 91015
Total ARIN prefixes after maximum aggregation: 55223
Prefixes being announced from the ARIN address blocks: 71150
Unique aggregates announced from the ARIN address blocks: 26249
ARIN Region origin ASes present in the Internet Routing Table: 10208
ARIN Region origin ASes announcing only one prefix: 3759
ARIN Region transit ASes present in the Internet Routing Table: 954
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 270242304
Equivalent to 16 /8s, 27 /16s and 146 /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: 32940
Total RIPE prefixes after maximum aggregation: 22416
Prefixes being announced from the RIPE address blocks: 30039
Unique aggregates announced from the RIPE address blocks: 20168
RIPE Region origin ASes present in the Internet Routing Table: 7123
RIPE Region origin ASes announcing only one prefix: 3761
RIPE Region transit ASes present in the Internet Routing Table: 1192
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218542784
Equivalent to 13 /8s, 6 /16s and 178 /24s
Percentage of available RIPE address space announced: 65.1
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: 9578
Total LACNIC prefixes after maximum aggregation: 3214
Prefixes being announced from the LACNIC address blocks: 7927
Unique aggregates announced from the LACNIC address blocks: 4606
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: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22084608
Equivalent to 1 /8s, 80 /16s and 252 /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: 1725
Total AfriNIC prefixes after maximum aggregation: 816
Prefixes being announced from the AfriNIC address blocks: 1066
Unique aggregates announced from the AfriNIC address blocks: 805
AfriNIC Region origin ASes present in the Internet Routing Table: 140
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2734592
Equivalent to 0 /8s, 41 /16s and 186 /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 799 77 12 Sify Limited
1221 749 1328 516 Telstra Pty Ltd
4755 719 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 289 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 77 Primus Telecommunications
9498 337 147 58 BHARTI BT INTERNET LTD.
2907 336 1757 313 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 335 224 46 China Netcom Corp.
7474 313 257 216 SingTel Optus Pty Ltd
17974 302 66 13 PT TELEKOMUNIKASI INDONESIA
18302 293 109 155 SK Global co., Ltd
4802 288 65 155 Wantree Development
17557 288 20 150 Pakistan Telecom
9837 273 79 174 Powertel Ltd
703 254 263 207 UUNET - Commercial IP service
9800 252 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6359 980 AT&T WorldNet Services
4323 1173 705 228 Time Warner Telecom
721 1087 21922 308 DLA Systems Automation Center
174 1070 5850 1002 Cogent Communications
701 984 8119 829 UUNET Technologies, Inc.
6197 946 399 481 BellSouth Network Solutions,
2386 919 513 681 AT&T Data Communications Serv
1239 867 2852 610 Sprint
18566 854 240 7 Covad Communications
20115 650 508 330 Charter Communications
209 629 3585 498 Qwest
3356 575 10659 442 Level 3 Communications, LLC
3602 558 132 111 Sprint Canada, Inc.
27364 558 44 18 Armstrong Cable Services
3561 539 2409 419 Savvis
22773 538 1352 28 Cox Communications, Inc.
5668 490 115 23 CenturyTel Internet Holdings,
6198 472 417 228 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
702 608 1994 480 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 237 262 217 Romania Data Systems S.A.
3246 228 476 221 Song Networks
9121 224 336 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 168 289 141 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 143 145 100 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
3215 137 1181 79 France Telecom Transpac
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 122 89 86 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 112 148 75 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
2018 96 295 87 Tertiary Education Network
15475 83 84 4 Nile Online
8452 80 32 6 TEDATA
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 36 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
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 22 4 5 Swift Global Kenya Ltd.Is an
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 1173 945 Time Warner Telecom
18566 854 847 Covad Communications
9583 799 787 Sify Limited
4134 984 781 CHINANET-BACKBONE
721 1087 779 DLA Systems Automation Center
4755 719 653 Videsh Sanchar Nigam Ltd. Aut
27364 558 540 Armstrong Cable Services
22773 538 510 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 946 465 BellSouth Network Solutions,
3602 558 447 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
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
6467 365 316 E.Spire Communications, Inc.
15270 343 315 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65533 PRIVATE 22.22.22.0/24 17841 KRNIC
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 /14:323 /15:630 /16:8508 /17:2786 /18:4702
/19:10790 /20:11836 /21:9865 /22:13243 /23:14137 /24:92466
/25:341 /26:274 /27:189 /28:45 /29:14 /30:59
/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 710 1496 AT&T WorldNet Services
2386 630 919 AT&T Data Communications Serv
9583 624 799 Sify Limited
4323 559 1173 Time Warner Telecom
27364 549 558 Armstrong Cable Services
4766 427 611 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 384 608 UUNET - Commercial IP service
1239 368 867 Sprint
7011 363 421 Citizens Utilities
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 330 338 Cable One
15270 313 343 PaeTec.net -a division of Pae
6517 311 337 Yipes Communications, Inc.
701 278 984 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 274 650 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1590 13:1 15:10 16:2
17:3 18:3 20:27 22:1 24:1081 30:3
32:65 38:157 40:54 44:4 47:2 52:4
55:1 56:3 57:23 58:146 59:69 60:140
61:760 62:766 63:1881 64:2861 65:2070 66:2909
67:614 68:618 69:1226 70:188 71:18 72:385
80:630 81:519 82:473 83:305 84:248 85:321
86:121 87:16 125:8 128:150 129:166 130:95
131:295 132:36 133:1 134:145 135:43 136:149
137:65 138:164 139:61 140:429 141:137 142:150
143:140 144:210 145:34 146:299 147:119 148:303
149:184 150:108 151:72 152:113 153:89 154:5
155:140 156:80 157:111 158:164 159:171 160:85
161:74 162:232 163:132 164:190 165:186 166:152
167:248 168:438 169:142 170:314 171:8 190:1
192:5668 193:3306 194:2407 195:1551 196:683 198:3867
199:3239 200:4203 201:331 202:5949 203:6313 204:3797
205:2065 206:2448 207:2794 208:2028 209:3375 210:1643
211:811 212:1183 213:1365 214:304 215:39 216:3715
217:1141 218:220 219:134 220:490 221:282 222:130
End of report
