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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 17 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171802
Prefixes after maximum aggregation: 97904
Unique aggregates announced to Internet: 83123
Total ASes present in the Internet Routing Table: 20682
Origin-only ASes present in the Internet Routing Table: 17987
Origin ASes announcing only one prefix: 8521
Transit ASes present in the Internet Routing Table: 2695
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1431999040
Equivalent to 85 /8s, 90 /16s and 146 /24s
Percentage of available address space announced: 38.6
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81798
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35741
Total APNIC prefixes after maximum aggregation: 15721
Prefixes being announced from the APNIC address blocks: 33541
Unique aggregates announced from the APNIC address blocks: 16664
APNIC Region origin ASes present in the Internet Routing Table: 2386
APNIC Region origin ASes announcing only one prefix: 696
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: 17
Number of APNIC addresses announced to Internet: 202744448
Equivalent to 12 /8s, 21 /16s and 162 /24s
Percentage of available APNIC address space announced: 75.2
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: 91295
Total ARIN prefixes after maximum aggregation: 55467
Prefixes being announced from the ARIN address blocks: 71355
Unique aggregates announced from the ARIN address blocks: 26514
ARIN Region origin ASes present in the Internet Routing Table: 10249
ARIN Region origin ASes announcing only one prefix: 3778
ARIN Region transit ASes present in the Internet Routing Table: 955
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 272066304
Equivalent to 16 /8s, 55 /16s and 103 /24s
Percentage of available ARIN address space announced: 67.6
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: 33305
Total RIPE prefixes after maximum aggregation: 22668
Prefixes being announced from the RIPE address blocks: 30318
Unique aggregates announced from the RIPE address blocks: 20289
RIPE Region origin ASes present in the Internet Routing Table: 7199
RIPE Region origin ASes announcing only one prefix: 3798
RIPE Region transit ASes present in the Internet Routing Table: 1193
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 220049152
Equivalent to 13 /8s, 29 /16s and 175 /24s
Percentage of available RIPE address space announced: 65.6
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, 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: 9664
Total LACNIC prefixes after maximum aggregation: 3231
Prefixes being announced from the LACNIC address blocks: 7993
Unique aggregates announced from the LACNIC address blocks: 4705
LACNIC Region origin ASes present in the Internet Routing Table: 643
LACNIC Region origin ASes announcing only one prefix: 206
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: 22285824
Equivalent to 1 /8s, 84 /16s and 14 /24s
Percentage of available LACNIC address space announced: 33.2
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: 1767
Total AfriNIC prefixes after maximum aggregation: 817
Prefixes being announced from the AfriNIC address blocks: 1080
Unique aggregates announced from the AfriNIC address blocks: 798
AfriNIC Region origin ASes present in the Internet Routing Table: 140
AfriNIC Region origin ASes announcing only one prefix: 43
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: 2839808
Equivalent to 0 /8s, 43 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1005 6236 210 CHINANET-BACKBONE
9583 807 77 12 Sify Limited
1221 750 1326 513 Telstra Pty Ltd
4755 720 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 618 3927 290 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 381 211 57 BHARTI BT INTERNET LTD.
2907 338 1763 315 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 332 224 46 China Netcom Corp.
7474 330 258 227 SingTel Optus Pty Ltd
17557 329 23 161 Pakistan Telecom
4802 325 71 155 Wantree Development
18302 290 109 169 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 271 65 14 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
1659 262 956 35 Tiawan Academic Network (TANe
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1526 6364 995 AT&T WorldNet Services
4323 1191 705 231 Time Warner Telecom
721 1077 21938 309 DLA Systems Automation Center
174 1059 5848 993 Cogent Communications
701 1003 8121 840 UUNET Technologies, Inc.
6197 947 399 490 BellSouth Network Solutions,
2386 926 513 688 AT&T Data Communications Serv
18566 860 240 7 Covad Communications
1239 857 2852 603 Sprint
209 639 3572 505 Qwest
20115 628 512 332 Charter Communications
3602 560 131 109 Sprint Canada, Inc.
22773 539 1348 27 Cox Communications, Inc.
3356 535 10639 411 Level 3 Communications, LLC
3561 487 2408 415 Savvis
5668 486 147 24 CenturyTel Internet Holdings,
19262 486 1442 123 Verizon Global Networks
6198 479 448 223 BellSouth Network Solutions,
7132 468 5059 399 SBC Internet Services
852 439 1092 383 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 605 1976 478 UUNET - Commercial IP service
3301 304 1081 290 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 243 2040 239 DFN-IP service G-WiN
8708 240 274 225 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 193 712 171 SWIPnet Swedish IP Network
6746 193 50 167 Dynamic Network Technologies,
5515 181 777 127 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 170 289 142 BT Ignite European Backbone
8866 159 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 157 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 142 1229 81 France Telecom Transpac
1273 139 177 97 Cable & Wireless Deutschland
24863 139 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 403 650 171 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 279 86 64 Servicios Alestra S.A de C.V
11664 195 22 13 Keytech SA
19632 195 14 5 Metropolis Intercom S.A.
6147 191 118 21 Telefonica Del Peru
22047 169 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 146 69 17 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 119 52 9 Mega Cable S.A. de C.V.
6503 113 148 73 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 108 14 17 INTERCABLE
5639 105 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 88 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 122 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
5713 38 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 3 19 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 19 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 1191 960 Time Warner Telecom
18566 860 853 Covad Communications
4134 1005 795 CHINANET-BACKBONE
9583 807 795 Sify Limited
721 1077 768 DLA Systems Automation Center
4755 720 653 Videsh Sanchar Nigam Ltd. Aut
22773 539 512 Cox Communications, Inc.
5668 486 462 CenturyTel Internet Holdings,
6197 947 457 BellSouth Network Solutions,
3602 560 451 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 486 363 Verizon Global Networks
6467 403 355 E.Spire Communications, Inc.
11492 346 335 Cable One
812 357 331 Rogers WAVE
4766 618 328 Korea Telecom (KIX)
17488 336 327 Hathway IP Over Cable Interne
9498 381 324 BHARTI BT INTERNET LTD.
15270 342 317 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65500 PRIVATE 64.146.64.0/24 19029 New Edge Networks
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65535 PRIVATE 70.128.144.0/21 7132 SBC Internet Service
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
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
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
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
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
65500 PRIVATE 216.217.188.0/24 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 /12:80
/13:181 /14:330 /15:648 /16:8562 /17:2840 /18:4754
/19:10857 /20:11913 /21:9963 /22:13249 /23:14214 /24:93267
/25:322 /26:281 /27:177 /28:33 /29:12 /30:38
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 844 860 Covad Communications
6197 774 947 BellSouth Network Solutions,
7018 747 1526 AT&T WorldNet Services
2386 637 926 AT&T Data Communications Serv
9583 630 807 Sify Limited
4323 567 1191 Time Warner Telecom
4766 426 618 Korea Telecom (KIX)
5668 390 486 CenturyTel Internet Holdings,
702 384 605 UUNET - Commercial IP service
1239 367 857 Sprint
7011 365 425 Citizens Utilities
19916 363 369 OLM LLC
6198 349 479 BellSouth Network Solutions,
11492 338 346 Cable One
6517 321 347 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
701 285 1003 UUNET Technologies, Inc.
13609 281 322 Choice One Communications Inc
18302 275 290 SK Global co., Ltd
22773 275 539 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:25 12:1604 13:1 15:11 16:3
17:3 18:3 20:31 24:560 30:3 32:68
38:162 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:95 59:76 60:140 61:767
62:780 63:1886 64:2914 65:2081 66:2975 67:636
68:661 69:1297 70:210 71:31 72:411 80:652
81:576 82:497 83:296 84:283 85:361 86:131
87:61 125:17 128:145 129:169 130:96 131:296
132:36 133:1 134:146 135:40 136:158 137:67
138:166 139:66 140:500 141:141 142:147 143:142
144:219 145:34 146:301 147:130 148:275 149:186
150:107 151:69 152:111 153:93 154:5 155:140
156:79 157:113 158:163 159:174 160:87 161:76
162:236 163:148 164:188 165:191 166:151 167:257
168:445 169:143 170:306 171:11 190:1 192:5718
193:3273 194:2399 195:1562 196:666 198:3888 199:3244
200:4246 201:357 202:6140 203:6477 204:3827 205:2058
206:2448 207:2851 208:2019 209:3410 210:1692 211:825
212:1187 213:1325 214:309 215:39 216:3708 217:1147
218:225 219:130 220:510 221:290 222:129
End of report
