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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 21 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170767
Prefixes after maximum aggregation: 97330
Unique aggregates announced to Internet: 82433
Total ASes present in the Internet Routing Table: 20531
Origin-only ASes present in the Internet Routing Table: 17864
Origin ASes announcing only one prefix: 8449
Transit ASes present in the Internet Routing Table: 2667
Transit-only ASes present in the Internet Routing Table: 72
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: 13
Number of addresses announced to Internet: 1425474624
Equivalent to 84 /8s, 247 /16s and 4 /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: 81330
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35355
Total APNIC prefixes after maximum aggregation: 15582
Prefixes being announced from the APNIC address blocks: 33216
Unique aggregates announced from the APNIC address blocks: 16449
APNIC Region origin ASes present in the Internet Routing Table: 2365
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 200166144
Equivalent to 11 /8s, 238 /16s and 75 /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: 91127
Total ARIN prefixes after maximum aggregation: 55282
Prefixes being announced from the ARIN address blocks: 71204
Unique aggregates announced from the ARIN address blocks: 26190
ARIN Region origin ASes present in the Internet Routing Table: 10228
ARIN Region origin ASes announcing only one prefix: 3771
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 268192256
Equivalent to 15 /8s, 252 /16s and 74 /24s
Percentage of available ARIN address space announced: 66.6
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: 33014
Total RIPE prefixes after maximum aggregation: 22450
Prefixes being announced from the RIPE address blocks: 30070
Unique aggregates announced from the RIPE address blocks: 20241
RIPE Region origin ASes present in the Internet Routing Table: 7102
RIPE Region origin ASes announcing only one prefix: 3743
RIPE Region transit ASes present in the Internet Routing Table: 1181
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 218077056
Equivalent to 12 /8s, 255 /16s and 151 /24s
Percentage of available RIPE address space announced: 65.0
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: 9513
Total LACNIC prefixes after maximum aggregation: 3202
Prefixes being announced from the LACNIC address blocks: 7868
Unique aggregates announced from the LACNIC address blocks: 4592
LACNIC Region origin ASes present in the Internet Routing Table: 633
LACNIC Region origin ASes announcing only one prefix: 198
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: 22023680
Equivalent to 1 /8s, 80 /16s and 14 /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: 1734
Total AfriNIC prefixes after maximum aggregation: 814
Prefixes being announced from the AfriNIC address blocks: 1057
Unique aggregates announced from the AfriNIC address blocks: 801
AfriNIC Region origin ASes present in the Internet Routing Table: 139
AfriNIC Region origin ASes announcing only one prefix: 41
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: 2727936
Equivalent to 0 /8s, 41 /16s and 160 /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 983 6076 202 CHINANET-BACKBONE
9583 792 77 12 Sify Limited
1221 747 1328 515 Telstra Pty Ltd
4755 717 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 610 3927 289 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 336 1757 313 SINET Japan
9498 335 147 59 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 313 257 216 SingTel Optus Pty Ltd
4802 305 63 153 Wantree Development
18302 293 109 154 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 263 206 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 1504 6357 983 AT&T WorldNet Services
4323 1171 705 228 Time Warner Telecom
721 1094 21922 312 DLA Systems Automation Center
174 1073 5850 1005 Cogent Communications
701 995 8120 838 UUNET Technologies, Inc.
6197 942 389 479 BellSouth Network Solutions,
2386 919 515 682 AT&T Data Communications Serv
1239 866 2852 609 Sprint
18566 852 227 21 Covad Communications
20115 647 507 329 Charter Communications
209 628 3457 494 Qwest
3356 577 10661 445 Level 3 Communications, LLC
3602 557 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 540 2409 420 Savvis
22773 533 1352 28 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 466 417 225 BellSouth Network Solutions,
7132 463 4950 396 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
702 608 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 292 3230 242 Deutsche Telekom AG
8220 266 474 261 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 237 262 217 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 209 295 42 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 169 289 142 BT Ignite European Backbone
8866 164 37 9 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 137 1181 79 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 650 169 UniNet S.A. de C.V.
16814 298 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 24 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 145 70 13 Telecom Argentina Stet-France
11556 134 64 3 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 28 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 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 107 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 84 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 60 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 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
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
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 1171 943 Time Warner Telecom
18566 852 831 Covad Communications
721 1094 782 DLA Systems Automation Center
4134 983 781 CHINANET-BACKBONE
9583 792 780 Sify Limited
4755 717 651 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 533 505 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 942 463 BellSouth Network Solutions,
3602 557 447 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 399 350 E.Spire Communications, Inc.
19262 453 332 Verizon Global Networks
11492 336 328 Cable One
4766 610 321 Korea Telecom (KIX)
20115 647 318 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
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 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
79.5.97.0/24 31896 CONTACTMEO LLC
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
/13:176 /14:323 /15:627 /16:8546 /17:2761 /18:4684
/19:10759 /20:11798 /21:9862 /22:13207 /23:14134 /24:92838
/25:334 /26:266 /27:170 /28:46 /29:14 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 837 852 Covad Communications
6197 771 942 BellSouth Network Solutions,
7018 714 1504 AT&T WorldNet Services
2386 632 919 AT&T Data Communications Serv
9583 618 792 Sify Limited
4323 561 1171 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 427 610 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 385 608 UUNET - Commercial IP service
7011 369 427 Citizens Utilities
1239 367 866 Sprint
19916 363 369 OLM LLC
6198 340 466 BellSouth Network Solutions,
11492 328 336 Cable One
6517 312 338 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 285 995 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 271 647 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1595 13:1 15:10 16:2
17:3 18:3 20:27 24:1075 30:3 32:65
38:153 40:55 44:4 47:2 52:4 55:1
56:3 57:23 58:156 59:69 60:122 61:728
62:761 63:1895 64:2872 65:2077 66:2913 67:614
68:614 69:1217 70:187 71:17 72:386 79:1
80:611 81:553 82:476 83:308 84:247 85:332
86:116 87:16 125:8 128:161 129:167 130:96
131:293 132:36 133:1 134:145 135:43 136:151
137:66 138:165 139:62 140:429 141:105 142:145
143:141 144:217 145:34 146:297 147:118 148:300
149:181 150:108 151:72 152:113 153:89 154:5
155:140 156:80 157:117 158:164 159:170 160:85
161:73 162:226 163:133 164:188 165:187 166:155
167:251 168:437 169:141 170:314 171:8 190:1
192:5719 193:3297 194:2413 195:1560 196:679 198:3890
199:3300 200:4178 201:327 202:6104 203:6410 204:3795
205:2073 206:2443 207:2817 208:2042 209:3390 210:1663
211:796 212:1217 213:1362 214:302 215:36 216:3689
217:1134 218:219 219:138 220:477 221:277 222:127
End of report
