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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 11 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169976
Prefixes after maximum aggregation: 97211
Unique aggregates announced to Internet: 82068
Total ASes present in the Internet Routing Table: 20451
Origin-only ASes present in the Internet Routing Table: 17801
Origin ASes announcing only one prefix: 8440
Transit ASes present in the Internet Routing Table: 2650
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: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1421060096
Equivalent to 84 /8s, 179 /16s and 168 /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: 80803
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35324
Total APNIC prefixes after maximum aggregation: 15704
Prefixes being announced from the APNIC address blocks: 33177
Unique aggregates announced from the APNIC address blocks: 16388
APNIC Region origin ASes present in the Internet Routing Table: 2355
APNIC Region origin ASes announcing only one prefix: 702
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: 18
Number of APNIC addresses announced to Internet: 197367296
Equivalent to 11 /8s, 195 /16s and 150 /24s
Percentage of available APNIC address space announced: 73.2
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: 90687
Total ARIN prefixes after maximum aggregation: 55115
Prefixes being announced from the ARIN address blocks: 70885
Unique aggregates announced from the ARIN address blocks: 26056
ARIN Region origin ASes present in the Internet Routing Table: 10191
ARIN Region origin ASes announcing only one prefix: 3770
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 267671552
Equivalent to 15 /8s, 244 /16s and 88 /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: 32781
Total RIPE prefixes after maximum aggregation: 22376
Prefixes being announced from the RIPE address blocks: 29802
Unique aggregates announced from the RIPE address blocks: 20145
RIPE Region origin ASes present in the Internet Routing Table: 7068
RIPE Region origin ASes announcing only one prefix: 3729
RIPE Region transit ASes present in the Internet Routing Table: 1170
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217236352
Equivalent to 12 /8s, 242 /16s and 195 /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: 9493
Total LACNIC prefixes after maximum aggregation: 3201
Prefixes being announced from the LACNIC address blocks: 7846
Unique aggregates announced from the LACNIC address blocks: 4593
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 21972992
Equivalent to 1 /8s, 79 /16s and 72 /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: 1668
Total AfriNIC prefixes after maximum aggregation: 815
Prefixes being announced from the AfriNIC address blocks: 1026
Unique aggregates announced from the AfriNIC address blocks: 776
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: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2658304
Equivalent to 0 /8s, 40 /16s and 144 /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 965 5884 200 CHINANET-BACKBONE
9583 778 77 12 Sify Limited
1221 747 1326 515 Telstra Pty Ltd
4755 708 259 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 337 1789 314 SINET Japan
9498 337 147 60 BHARTI BT INTERNET LTD.
17557 337 24 161 Pakistan Telecom
9929 335 224 46 China Netcom Corp.
17488 319 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 299 60 152 Wantree Development
18302 294 109 165 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 262 209 UUNET - Commercial IP service
9800 246 386 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1502 6374 981 AT&T WorldNet Services
4323 1166 706 227 Time Warner Telecom
174 1115 5852 1021 Cogent Communications
721 1085 21922 311 DLA Systems Automation Center
701 997 8119 841 UUNET Technologies, Inc.
6197 943 389 478 BellSouth Network Solutions,
2386 915 515 678 AT&T Data Communications Serv
1239 867 2852 612 Sprint
18566 844 224 22 Covad Communications
20115 643 506 323 Charter Communications
209 624 3457 492 Qwest
3356 576 10661 446 Level 3 Communications, LLC
3602 556 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 537 2401 419 Savvis
22773 522 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 452 1372 120 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 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 228 476 221 Song Networks
1257 198 713 176 SWIPnet Swedish IP Network
9121 192 290 50 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 169 36 8 Bulgarian Telecommunication C
5400 167 289 141 BT Ignite European Backbone
6830 157 669 33 UPC Distribution Services
3300 154 184 89 AUCS Communications Services
25186 143 145 100 France Telecom Transpac's Tra
1273 138 174 96 Cable & Wireless Deutschland
8551 138 122 21 Bezeq International
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 247 83 59 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
19169 121 8 25 Telconet
6505 120 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
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 124 8 11 Internet Egypt Network
8452 108 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 93 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 37 6 4 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 28 4 19 AS Number for Telecom Algeria
15804 26 2 1 AS of The Way Out Internet So
8524 23 1 7 AUCEGYPT Autonomous System
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
23889 20 5 9 MAURITIUS TELECOM
15808 19 2 2 Communication Solutions Ltd i
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1166 939 Time Warner Telecom
18566 844 822 Covad Communications
721 1085 774 DLA Systems Automation Center
9583 778 766 Sify Limited
4134 965 765 CHINANET-BACKBONE
4755 708 644 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 522 495 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 943 465 BellSouth Network Solutions,
7545 520 447 TPG Internet Pty Ltd
3602 556 446 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 428 355 E.Spire Communications, Inc.
19262 452 332 Verizon Global Networks
11492 330 323 Cable One
20115 643 320 Charter Communications
4766 604 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
15270 335 308 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
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
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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 /12:79
/13:173 /14:321 /15:626 /16:8510 /17:2725 /18:4665
/19:10737 /20:11816 /21:9800 /22:13180 /23:14078 /24:92251
/25:335 /26:297 /27:177 /28:48 /29:23 /30:58
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 829 844 Covad Communications
6197 772 943 BellSouth Network Solutions,
7018 708 1502 AT&T WorldNet Services
2386 625 915 AT&T Data Communications Serv
9583 604 778 Sify Limited
4323 554 1166 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 421 604 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
1239 366 867 Sprint
19916 363 369 OLM LLC
7011 349 404 Citizens Utilities
6198 346 473 BellSouth Network Solutions,
11492 322 330 Cable One
6517 307 333 Yipes Communications, Inc.
15270 305 335 PaeTec.net -a division of Pae
701 285 997 UUNET Technologies, Inc.
6467 280 428 E.Spire Communications, Inc.
18302 279 294 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 11:1 12:1576 13:1 15:9
16:2 17:3 18:3 20:21 24:1070 30:3
32:61 38:148 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:156 59:67 60:121
61:725 62:792 63:1892 64:2857 65:2067 66:2896
67:601 68:609 69:1211 70:179 71:15 72:372
80:607 81:561 82:463 83:301 84:237 85:306
86:105 87:10 128:159 129:169 130:94 131:294
132:36 133:1 134:145 135:43 136:150 137:65
138:164 139:61 140:427 141:105 142:145 143:140
144:217 145:34 146:294 147:117 148:302 149:182
150:107 151:69 152:112 153:92 154:5 155:149
156:80 157:112 158:164 159:171 160:85 161:73
162:222 163:116 164:188 165:194 166:155 167:245
168:438 169:142 170:313 171:8 190:1 192:5718
193:3279 194:2405 195:1546 196:646 198:3863 199:3294
200:4177 201:323 202:6071 203:6347 204:3795 205:2065
206:2464 207:2825 208:2030 209:3355 210:1664 211:807
212:1211 213:1353 214:293 215:39 216:3646 217:1078
218:217 219:138 220:459 221:267 222:123
End of report
