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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 16 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170349
Prefixes after maximum aggregation: 97176
Unique aggregates announced to Internet: 82295
Total ASes present in the Internet Routing Table: 20495
Origin-only ASes present in the Internet Routing Table: 17820
Origin ASes announcing only one prefix: 8439
Transit ASes present in the Internet Routing Table: 2675
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: 26
Prefixes from unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1423450176
Equivalent to 84 /8s, 216 /16s and 32 /24s
Percentage of available address space announced: 38.4
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80991
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35322
Total APNIC prefixes after maximum aggregation: 15531
Prefixes being announced from the APNIC address blocks: 33185
Unique aggregates announced from the APNIC address blocks: 16400
APNIC Region origin ASes present in the Internet Routing Table: 2358
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 361
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 199209984
Equivalent to 11 /8s, 223 /16s and 180 /24s
Percentage of available APNIC address space announced: 73.9
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: 90843
Total ARIN prefixes after maximum aggregation: 55216
Prefixes being announced from the ARIN address blocks: 71043
Unique aggregates announced from the ARIN address blocks: 26221
ARIN Region origin ASes present in the Internet Routing Table: 10214
ARIN Region origin ASes announcing only one prefix: 3775
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 267858752
Equivalent to 15 /8s, 247 /16s and 51 /24s
Percentage of available ARIN address space announced: 66.5
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: 32895
Total RIPE prefixes after maximum aggregation: 22410
Prefixes being announced from the RIPE address blocks: 29959
Unique aggregates announced from the RIPE address blocks: 20189
RIPE Region origin ASes present in the Internet Routing Table: 7082
RIPE Region origin ASes announcing only one prefix: 3727
RIPE Region transit ASes present in the Internet Routing Table: 1184
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217754240
Equivalent to 12 /8s, 250 /16s and 170 /24s
Percentage of available RIPE address space announced: 64.9
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: 9524
Total LACNIC prefixes after maximum aggregation: 3205
Prefixes being announced from the LACNIC address blocks: 7877
Unique aggregates announced from the LACNIC address blocks: 4589
LACNIC Region origin ASes present in the Internet Routing Table: 636
LACNIC Region origin ASes announcing only one prefix: 198
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22003456
Equivalent to 1 /8s, 79 /16s and 191 /24s
Percentage of available LACNIC address space announced: 32.8
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: 1742
Total AfriNIC prefixes after maximum aggregation: 814
Prefixes being announced from the AfriNIC address blocks: 1056
Unique aggregates announced from the AfriNIC address blocks: 798
AfriNIC Region origin ASes present in the Internet Routing Table: 139
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2660352
Equivalent to 0 /8s, 40 /16s and 152 /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 966 5948 201 CHINANET-BACKBONE
9583 787 77 14 Sify Limited
1221 746 1328 515 Telstra Pty Ltd
4755 714 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 608 3927 287 Korea Telecom (KIX)
7545 516 108 73 TPG Internet Pty Ltd
17676 467 6771 100 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 337 1789 314 SINET Japan
9498 336 147 60 BHARTI BT INTERNET LTD.
9929 335 224 46 China Netcom Corp.
17557 330 23 157 Pakistan Telecom
17488 320 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 300 60 151 Wantree Development
18302 296 109 154 SK Global co., Ltd
9837 278 80 179 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 263 206 UUNET - Commercial IP service
9800 251 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6374 980 AT&T WorldNet Services
4323 1172 706 228 Time Warner Telecom
721 1089 21922 312 DLA Systems Automation Center
174 1082 5851 1014 Cogent Communications
701 999 8120 841 UUNET Technologies, Inc.
6197 942 389 478 BellSouth Network Solutions,
2386 915 515 677 AT&T Data Communications Serv
1239 864 2851 608 Sprint
18566 845 225 22 Covad Communications
20115 647 509 327 Charter Communications
209 626 3441 492 Qwest
3356 574 10661 444 Level 3 Communications, LLC
3602 556 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 540 2409 420 Savvis
22773 527 1352 27 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 462 4949 395 SBC Internet Services
19262 453 1374 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 291 3230 241 Deutsche Telekom AG
8220 265 474 260 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 236 262 216 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 200 292 40 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 165 36 8 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 143 145 100 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
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 297 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
6147 191 118 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 119 7 32 Telconet
13999 116 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 123 8 12 Internet Egypt Network
8452 107 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 92 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 59 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
23889 23 5 9 MAURITIUS TELECOM
16637 22 10 19 Johnnic e-Ventures
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1172 944 Time Warner Telecom
18566 845 823 Covad Communications
721 1089 777 DLA Systems Automation Center
9583 787 773 Sify Limited
4134 966 765 CHINANET-BACKBONE
4755 714 650 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 527 500 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 942 464 BellSouth Network Solutions,
3602 556 446 Sprint Canada, Inc.
7545 516 443 TPG Internet Pty Ltd
17676 467 367 Softbank BB Corp.
6467 398 348 E.Spire Communications, Inc.
19262 453 332 Verizon Global Networks
11492 331 324 Cable One
4766 608 321 Korea Telecom (KIX)
20115 647 320 Charter Communications
17488 320 312 Hathway IP Over Cable Interne
15270 337 310 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 8697 Jordan Telecommunica
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
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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 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 /9:5 /10:8 /11:17 /12:80
/13:175 /14:323 /15:626 /16:8521 /17:2737 /18:4684
/19:10761 /20:11826 /21:9850 /22:13204 /23:14062 /24:92516
/25:323 /26:296 /27:168 /28:44 /29:14 /30:60
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 830 845 Covad Communications
6197 771 942 BellSouth Network Solutions,
7018 711 1501 AT&T WorldNet Services
2386 626 915 AT&T Data Communications Serv
9583 610 787 Sify Limited
4323 561 1172 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 425 608 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
7011 368 423 Citizens Utilities
1239 367 864 Sprint
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 323 331 Cable One
6517 310 336 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 286 999 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
20115 270 647 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 11:1 12:1573 13:1 15:10
16:2 17:3 18:3 20:21 24:1069 30:3
32:61 38:148 40:55 44:4 47:2 52:4
55:1 56:3 57:23 58:156 59:68 60:122
61:728 62:757 63:1892 64:2870 65:2075 66:2900
67:610 68:613 69:1225 70:184 71:17 72:378
80:599 81:559 82:470 83:305 84:244 85:309
86:109 87:15 125:1 128:162 129:167 130:94
131:292 132:36 133:1 134:145 135:43 136:148
137:66 138:164 139:61 140:429 141:105 142:145
143:141 144:217 145:34 146:295 147:118 148:302
149:182 150:107 151:69 152:112 153:93 154:5
155:147 156:80 157:112 158:163 159:171 160:85
161:73 162:227 163:119 164:188 165:187 166:155
167:245 168:439 169:142 170:320 171:8 190:1
192:5700 193:3296 194:2407 195:1549 196:677 198:3875
199:3297 200:4182 201:326 202:6114 203:6386 204:3790
205:2067 206:2454 207:2823 208:2039 209:3353 210:1652
211:796 212:1212 213:1355 214:296 215:36 216:3664
217:1132 218:220 219:138 220:464 221:275 222:126
End of report
