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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 27 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 172845
Prefixes after maximum aggregation: 98109
Unique aggregates announced to Internet: 83998
Total ASes present in the Internet Routing Table: 20756
Origin-only ASes present in the Internet Routing Table: 18035
Origin ASes announcing only one prefix: 8552
Transit ASes present in the Internet Routing Table: 2721
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
Prefixes from unregistered ASNs in the Routing Table: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1452522496
Equivalent to 86 /8s, 147 /16s and 188 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82510
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36096
Total APNIC prefixes after maximum aggregation: 15781
Prefixes being announced from the APNIC address blocks: 33841
Unique aggregates announced from the APNIC address blocks: 16751
APNIC Region origin ASes present in the Internet Routing Table: 2397
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204532608
Equivalent to 12 /8s, 48 /16s and 235 /24s
Percentage of available APNIC address space announced: 75.9
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: 91582
Total ARIN prefixes after maximum aggregation: 55475
Prefixes being announced from the ARIN address blocks: 71608
Unique aggregates announced from the ARIN address blocks: 27084
ARIN Region origin ASes present in the Internet Routing Table: 10268
ARIN Region origin ASes announcing only one prefix: 3786
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273012480
Equivalent to 16 /8s, 69 /16s and 215 /24s
Percentage of available ARIN address space announced: 67.8
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: 33623
Total RIPE prefixes after maximum aggregation: 22793
Prefixes being announced from the RIPE address blocks: 30640
Unique aggregates announced from the RIPE address blocks: 20518
RIPE Region origin ASes present in the Internet Routing Table: 7240
RIPE Region origin ASes announcing only one prefix: 3820
RIPE Region transit ASes present in the Internet Routing Table: 1207
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221452480
Equivalent to 13 /8s, 51 /16s and 24 /24s
Percentage of available RIPE address space announced: 66.0
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: 9718
Total LACNIC prefixes after maximum aggregation: 3238
Prefixes being announced from the LACNIC address blocks: 8046
Unique aggregates announced from the LACNIC address blocks: 4631
LACNIC Region origin ASes present in the Internet Routing Table: 644
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: 24
Number of LACNIC addresses announced to Internet: 22113536
Equivalent to 1 /8s, 81 /16s and 109 /24s
Percentage of available LACNIC address space announced: 33.0
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: 1801
Total AfriNIC prefixes after maximum aggregation: 822
Prefixes being announced from the AfriNIC address blocks: 1118
Unique aggregates announced from the AfriNIC address blocks: 824
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 42
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: 2845440
Equivalent to 0 /8s, 43 /16s and 107 /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 1010 6318 214 CHINANET-BACKBONE
9583 816 77 12 Sify Limited
1221 753 1327 516 Telstra Pty Ltd
4755 740 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 290 Korea Telecom (KIX)
7545 509 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 391 211 58 BHARTI BT INTERNET LTD.
17488 365 21 14 Hathway IP Over Cable Interne
2907 339 1763 316 SINET Japan
9929 332 224 46 China Netcom Corp.
7474 330 258 227 SingTel Optus Pty Ltd
17557 330 24 162 Pakistan Telecom
4802 329 72 154 Wantree Development
18302 294 109 171 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
703 255 260 211 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6324 970 AT&T WorldNet Services
4323 1189 705 232 Time Warner Telecom
721 1066 21874 302 DLA Systems Automation Center
174 1052 5847 991 Cogent Communications
701 999 8152 838 UUNET Technologies, Inc.
6197 944 399 487 BellSouth Network Solutions,
2386 915 538 680 AT&T Data Communications Serv
18566 865 240 7 Covad Communications
1239 850 2851 599 Sprint
209 641 3572 507 Qwest
20115 633 515 334 Charter Communications
3602 573 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
22773 546 1352 27 Cox Communications, Inc.
3356 530 10638 406 Level 3 Communications, LLC
19262 501 1486 125 Verizon Global Networks
5668 484 147 23 CenturyTel Internet Holdings,
3561 476 2409 403 Savvis
7132 471 5092 400 SBC Internet Services
7011 443 150 294 Citizens Utilities
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 604 1960 477 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 238 274 223 Romania Data Systems S.A.
3246 226 474 219 Song Networks
6746 196 51 168 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 181 1734 69 TELECOM ITALIA
786 175 1795 175 The JANET IP Service
5400 173 317 143 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 157 169 91 AUCS Communications Services
25186 151 227 106 France Telecom Transpac's Tra
24863 143 37 6 LINKdotNET AS number
3215 142 1229 81 France Telecom Transpac
3352 137 1384 33 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 383 641 164 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 279 88 70 Servicios Alestra S.A de C.V
11664 198 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
6147 189 118 21 Telefonica Del Peru
14117 188 11 6 Telefonica del Sur S.A.
22047 169 128 7 VTR PUNTO NET S.A.
7303 147 69 19 Telecom Argentina Stet-France
11556 133 64 3 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.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
6503 109 148 76 AVANTEL, S.A.
21826 108 14 17 INTERCABLE
11311 99 8 10 Sinectis S.A.
23216 89 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 227 The Internet Solution
8452 132 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 94 295 85 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 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
33774 32 3 22 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
16637 24 10 21 Johnnic e-Ventures
8524 23 1 4 AUCEGYPT Autonomous System
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
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 957 Time Warner Telecom
18566 865 858 Covad Communications
9583 816 804 Sify Limited
4134 1010 796 CHINANET-BACKBONE
721 1066 764 DLA Systems Automation Center
4755 740 673 Videsh Sanchar Nigam Ltd. Aut
22773 546 519 Cox Communications, Inc.
19916 563 509 OLM LLC
3602 573 464 Sprint Canada, Inc.
5668 484 461 CenturyTel Internet Holdings,
6197 944 457 BellSouth Network Solutions,
7545 509 438 TPG Internet Pty Ltd
19262 501 376 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 365 351 Hathway IP Over Cable Interne
812 368 343 Rogers WAVE
11492 348 337 Cable One
9498 391 333 BHARTI BT INTERNET LTD.
4766 619 329 Korea Telecom (KIX)
6467 375 327 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
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
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:18 /12:79
/13:182 /14:337 /15:656 /16:8592 /17:2852 /18:4785
/19:10893 /20:11953 /21:10040 /22:13273 /23:14277 /24:93970
/25:331 /26:281 /27:180 /28:33 /29:11 /30:38
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 849 865 Covad Communications
6197 771 944 BellSouth Network Solutions,
7018 723 1488 AT&T WorldNet Services
9583 639 816 Sify Limited
2386 630 915 AT&T Data Communications Serv
4323 566 1189 Time Warner Telecom
19916 557 563 OLM LLC
4766 427 619 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
702 383 604 UUNET - Commercial IP service
7011 383 443 Citizens Utilities
1239 361 850 Sprint
11492 340 348 Cable One
6517 324 350 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
6198 305 440 BellSouth Network Solutions,
13609 292 333 Choice One Communications Inc
701 284 999 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
22773 278 546 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:27 12:1609 13:1 15:11 16:3
17:3 18:3 20:41 24:568 30:2 32:68
38:166 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:97 59:90 60:147 61:787
62:791 63:1883 64:2952 65:2110 66:2972 67:642
68:644 69:1271 70:209 71:33 72:415 80:650
81:573 82:509 83:308 84:303 85:365 86:144
87:68 125:17 128:163 129:168 130:97 131:296
132:36 133:1 134:148 135:40 136:166 137:68
138:166 139:68 140:469 141:141 142:148 143:142
144:217 145:34 146:301 147:131 148:269 149:197
150:109 151:68 152:112 153:93 154:5 155:141
156:78 157:112 158:149 159:175 160:87 161:76
162:237 163:146 164:191 165:186 166:155 167:255
168:449 169:140 170:303 171:12 190:1 192:5729
193:3327 194:2432 195:1566 196:699 198:3910 199:3249
200:4257 201:402 202:6218 203:6520 204:3831 205:2024
206:2438 207:2838 208:2009 209:3440 210:1705 211:827
212:1210 213:1362 214:317 215:39 216:3861 217:1142
218:221 219:132 220:501 221:297 222:133
End of report
