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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 20 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175163
Prefixes after maximum aggregation: 98791
Unique aggregates announced to Internet: 84852
Total ASes present in the Internet Routing Table: 20908
Origin-only ASes present in the Internet Routing Table: 18189
Origin ASes announcing only one prefix: 8597
Transit ASes present in the Internet Routing Table: 2719
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: 21
Prefixes from unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1462007808
Equivalent to 87 /8s, 36 /16s and 120 /24s
Percentage of available address space announced: 39.4
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84032
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36597
Total APNIC prefixes after maximum aggregation: 15787
Prefixes being announced from the APNIC address blocks: 34367
Unique aggregates announced from the APNIC address blocks: 16845
APNIC Region origin ASes present in the Internet Routing Table: 2404
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 206410688
Equivalent to 12 /8s, 77 /16s and 147 /24s
Percentage of available APNIC address space announced: 76.6
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: 92812
Total ARIN prefixes after maximum aggregation: 55812
Prefixes being announced from the ARIN address blocks: 72303
Unique aggregates announced from the ARIN address blocks: 27496
ARIN Region origin ASes present in the Internet Routing Table: 10339
ARIN Region origin ASes announcing only one prefix: 3827
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276206848
Equivalent to 16 /8s, 118 /16s and 149 /24s
Percentage of available ARIN address space announced: 68.6
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: 34118
Total RIPE prefixes after maximum aggregation: 23062
Prefixes being announced from the RIPE address blocks: 31092
Unique aggregates announced from the RIPE address blocks: 20837
RIPE Region origin ASes present in the Internet Routing Table: 7301
RIPE Region origin ASes announcing only one prefix: 3819
RIPE Region transit ASes present in the Internet Routing Table: 1203
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224144640
Equivalent to 13 /8s, 92 /16s and 45 /24s
Percentage of available RIPE address space announced: 66.8
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: 9833
Total LACNIC prefixes after maximum aggregation: 3281
Prefixes being announced from the LACNIC address blocks: 8132
Unique aggregates announced from the LACNIC address blocks: 4771
LACNIC Region origin ASes present in the Internet Routing Table: 647
LACNIC Region origin ASes announcing only one prefix: 209
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: 21
Number of LACNIC addresses announced to Internet: 22820352
Equivalent to 1 /8s, 92 /16s and 54 /24s
Percentage of available LACNIC address space announced: 34.0
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: 1796
Total AfriNIC prefixes after maximum aggregation: 849
Prefixes being announced from the AfriNIC address blocks: 1150
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
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: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /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 1026 6348 216 CHINANET-BACKBONE
9583 829 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 738 1342 513 Telstra Pty Ltd
4766 634 3927 285 Korea Telecom (KIX)
7545 513 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 397 215 62 BHARTI BT INTERNET LTD.
9443 392 87 78 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
17557 333 25 161 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
9929 326 216 46 China Netcom Corp.
18302 306 141 168 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6317 962 AT&T WorldNet Services
4323 1192 706 233 Time Warner Telecom
174 1077 5847 997 Cogent Communications
721 1066 21938 307 DLA Systems Automation Center
701 986 8136 830 UUNET Technologies, Inc.
6197 961 407 496 BellSouth Network Solutions,
2386 926 529 692 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 846 2801 596 Sprint
209 655 3589 518 Qwest
20115 652 531 344 Charter Communications
11492 617 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
19262 560 1579 135 Verizon Global Networks
855 558 247 65 Canadian Research Network
22773 556 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 518 10633 404 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 612 1960 481 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 267 474 262 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 162 317 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 158 185 94 AUCS Communications Services
12479 150 322 5 Uni2 Autonomous System
24863 149 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
3352 140 1420 33 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 389 707 165 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 88 69 Servicios Alestra S.A de C.V
11664 221 22 29 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 131 52 9 Mega Cable S.A. de C.V.
14117 131 11 6 Telefonica del Sur S.A.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
6503 112 147 73 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 143 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 116 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 57 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 21 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 1192 959 Time Warner Telecom
18566 877 870 Covad Communications
9583 829 817 Sify Limited
4134 1026 810 CHINANET-BACKBONE
721 1066 759 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 617 607 Cable One
22773 556 531 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 493 Canadian Research Network
6197 961 465 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 513 443 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 560 425 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 403 356 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 634 349 Korea Telecom (KIX)
812 367 337 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom 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 /11:17 /12:81
/13:187 /14:340 /15:666 /16:8592 /17:2884 /18:4872
/19:11025 /20:12141 /21:10204 /22:13442 /23:14604 /24:95139
/25:345 /26:291 /27:194 /28:26 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 783 961 BellSouth Network Solutions,
7018 733 1482 AT&T WorldNet Services
9583 651 829 Sify Limited
2386 643 926 AT&T Data Communications Serv
11492 609 617 Cable One
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
4766 440 634 Korea Telecom (KIX)
855 430 558 Canadian Research Network
7011 399 461 Citizens Utilities
702 392 612 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 846 Sprint
6198 354 492 BellSouth Network Solutions,
6517 322 348 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 290 306 SK Global co., Ltd
701 286 986 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:36 11:1 12:1620 13:2 14:1
15:11 16:3 17:3 18:3 20:42 24:672
30:2 32:64 38:181 40:53 44:3 47:3
52:4 55:1 56:3 57:35 58:98 59:91
60:145 61:795 62:783 63:1893 64:2936 65:2129
66:2886 67:633 68:682 69:1321 70:231 71:34
72:458 80:682 81:596 82:495 83:286 84:307
85:366 86:187 87:93 125:64 128:155 129:169
130:99 131:300 132:35 133:1 134:151 135:45
136:168 137:70 138:173 139:73 140:432 141:146
142:395 143:145 144:219 145:34 146:303 147:131
148:270 149:194 150:108 151:71 152:111 153:94
154:5 155:154 156:83 157:119 158:145 159:178
160:85 161:77 162:239 163:146 164:190 165:184
166:146 167:246 168:460 169:144 170:312 171:12
192:5756 193:3352 194:2435 195:1626 196:711 198:3923
199:3262 200:4220 201:432 202:6243 203:6600 204:3835
205:2070 206:2443 207:2917 208:2030 209:3462 210:1776
211:822 212:1214 213:1363 214:315 215:41 216:3843
217:1169 218:218 219:129 220:537 221:314 222:127
End of report
