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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 09 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170072
Prefixes after maximum aggregation: 97259
Unique aggregates announced to Internet: 82146
Total ASes present in the Internet Routing Table: 20435
Origin-only ASes present in the Internet Routing Table: 17775
Origin ASes announcing only one prefix: 8426
Transit ASes present in the Internet Routing Table: 2660
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 22
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1419891712
Equivalent to 84 /8s, 161 /16s and 212 /24s
Percentage of available address space announced: 38.3
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80861
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35395
Total APNIC prefixes after maximum aggregation: 15826
Prefixes being announced from the APNIC address blocks: 33247
Unique aggregates announced from the APNIC address blocks: 16611
APNIC Region origin ASes present in the Internet Routing Table: 2360
APNIC Region origin ASes announcing only one prefix: 702
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: 197432064
Equivalent to 11 /8s, 196 /16s and 147 /24s
Percentage of available APNIC address space announced: 73.3
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: 90643
Total ARIN prefixes after maximum aggregation: 55089
Prefixes being announced from the ARIN address blocks: 70869
Unique aggregates announced from the ARIN address blocks: 26008
ARIN Region origin ASes present in the Internet Routing Table: 10182
ARIN Region origin ASes announcing only one prefix: 3763
ARIN Region transit ASes present in the Internet Routing Table: 952
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 266333440
Equivalent to 15 /8s, 223 /16s and 237 /24s
Percentage of available ARIN address space announced: 66.1
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: 32814
Total RIPE prefixes after maximum aggregation: 22366
Prefixes being announced from the RIPE address blocks: 29873
Unique aggregates announced from the RIPE address blocks: 20123
RIPE Region origin ASes present in the Internet Routing Table: 7062
RIPE Region origin ASes announcing only one prefix: 3723
RIPE Region transit ASes present in the Internet Routing Table: 1177
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217147776
Equivalent to 12 /8s, 241 /16s and 105 /24s
Percentage of available RIPE address space announced: 64.7
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: 9470
Total LACNIC prefixes after maximum aggregation: 3176
Prefixes being announced from the LACNIC address blocks: 7825
Unique aggregates announced from the LACNIC address blocks: 4506
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 21969408
Equivalent to 1 /8s, 79 /16s and 58 /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: 1724
Total AfriNIC prefixes after maximum aggregation: 802
Prefixes being announced from the AfriNIC address blocks: 1029
Unique aggregates announced from the AfriNIC address blocks: 784
AfriNIC Region origin ASes present in the Internet Routing Table: 136
AfriNIC Region origin ASes announcing only one prefix: 42
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: 11
Number of AfriNIC addresses announced to Internet: 2649856
Equivalent to 0 /8s, 40 /16s and 111 /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 964 5876 199 CHINANET-BACKBONE
9583 776 59 102 Sify Limited
1221 749 1327 517 Telstra Pty Ltd
4755 707 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 604 3927 287 Korea Telecom (KIX)
7545 520 108 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 335 224 46 China Netcom Corp.
17557 329 23 156 Pakistan Telecom
17488 319 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 299 60 152 Wantree Development
18302 295 109 160 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 266 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 262 207 UUNET - Commercial IP service
9800 245 386 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1511 6373 985 AT&T WorldNet Services
4323 1164 706 227 Time Warner Telecom
174 1117 5852 1021 Cogent Communications
721 1083 21922 311 DLA Systems Automation Center
701 998 8120 842 UUNET Technologies, Inc.
6197 942 387 477 BellSouth Network Solutions,
2386 898 514 670 AT&T Data Communications Serv
1239 866 2851 611 Sprint
18566 842 224 21 Covad Communications
20115 644 506 324 Charter Communications
209 623 3456 491 Qwest
3356 577 10661 447 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 553 125 107 Sprint Canada, Inc.
3561 538 2401 420 Savvis
22773 521 1352 27 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 460 4949 394 SBC Internet Services
19262 451 1371 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 1994 481 UUNET - Commercial IP service
3301 301 1081 287 TeliaNet Sweden
3320 292 3232 240 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 234 262 215 Romania Data Systems S.A.
3246 228 468 221 Song Networks
1257 198 713 176 SWIPnet Swedish IP Network
9121 193 290 41 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 174 1574 69 TELECOM ITALIA
8866 170 36 8 Bulgarian Telecommunication C
5400 167 289 141 BT Ignite European Backbone
6830 157 669 33 UPC Distribution Services
3300 155 184 90 AUCS Communications Services
25186 143 145 100 France Telecom Transpac's Tra
8551 138 122 21 Bezeq International
1273 137 174 96 Cable & Wireless Deutschland
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 247 83 58 Servicios Alestra S.A de C.V
6147 196 118 21 Telefonica Del Peru
11664 190 20 23 Keytech SA
19632 183 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 145 69 16 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
13999 115 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 96 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 265 708 222 The Internet Solution
5536 124 8 11 Internet Egypt Network
8452 109 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 38 3 4 UUNET Kenya
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 27 4 18 AS Number for Telecom Algeria
15804 26 2 1 AS of The Way Out Internet So
8524 24 1 4 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1164 937 Time Warner Telecom
18566 842 821 Covad Communications
721 1083 772 DLA Systems Automation Center
4134 964 765 CHINANET-BACKBONE
9583 776 674 Sify Limited
4755 707 643 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 521 494 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 942 465 BellSouth Network Solutions,
7545 520 447 TPG Internet Pty Ltd
3602 553 446 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 427 354 E.Spire Communications, Inc.
19262 451 330 Verizon Global Networks
20115 644 320 Charter Communications
11492 325 318 Cable One
4766 604 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
9443 386 307 Primus Telecommunications
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
65000 PRIVATE 195.177.123.0/24 25408 West Call Ltd carrie
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
65535 PRIVATE 200.58.152.0/21 19422 Movicom-Bellsouth
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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
192.119.135.0/24 270 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 /12:78
/13:173 /14:321 /15:625 /16:8506 /17:2722 /18:4659
/19:10758 /20:11801 /21:9815 /22:13193 /23:14049 /24:92358
/25:337 /26:295 /27:175 /28:48 /29:22 /30:60
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 827 842 Covad Communications
6197 772 942 BellSouth Network Solutions,
7018 717 1511 AT&T WorldNet Services
2386 609 898 AT&T Data Communications Serv
9583 600 776 Sify Limited
4323 552 1164 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 421 604 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 370 594 UUNET - Commercial IP service
1239 364 866 Sprint
19916 363 369 OLM LLC
7011 348 403 Citizens Utilities
6198 346 473 BellSouth Network Solutions,
11492 317 325 Cable One
6517 306 332 Yipes Communications, Inc.
15270 304 334 PaeTec.net -a division of Pae
701 284 998 UUNET Technologies, Inc.
18302 280 295 SK Global co., Ltd
6467 279 427 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 20:21 24:1067 30:3
32:61 38:148 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:155 59:66 60:120
61:722 62:775 63:1891 64:2856 65:2064 66:2890
67:609 68:610 69:1208 70:176 71:14 72:365
80:607 81:549 82:468 83:304 84:243 85:307
86:103 87:10 128:153 129:170 130:95 131:294
132:36 133:1 134:145 135:42 136:150 137:65
138:164 139:61 140:425 141:105 142:145 143:136
144:218 145:34 146:293 147:117 148:299 149:182
150:106 151:69 152:109 153:92 154:5 155:149
156:80 157:109 158:164 159:171 160:85 161:73
162:226 163:117 164:188 165:195 166:154 167:245
168:438 169:142 170:315 171:8 190:1 192:5719
193:3278 194:2408 195:1562 196:652 198:3870 199:3298
200:4175 201:321 202:6080 203:6342 204:3780 205:2071
206:2468 207:2831 208:2034 209:3381 210:1699 211:819
212:1218 213:1338 214:294 215:39 216:3648 217:1139
218:217 219:138 220:455 221:264 222:125
End of report
