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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 17 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175293
Prefixes after maximum aggregation: 98812
Unique aggregates announced to Internet: 84728
Total ASes present in the Internet Routing Table: 20902
Origin-only ASes present in the Internet Routing Table: 18192
Origin ASes announcing only one prefix: 8621
Transit ASes present in the Internet Routing Table: 2710
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: 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: 1460158848
Equivalent to 87 /8s, 8 /16s and 65 /24s
Percentage of available address space announced: 39.4
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84175
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36604
Total APNIC prefixes after maximum aggregation: 15845
Prefixes being announced from the APNIC address blocks: 34378
Unique aggregates announced from the APNIC address blocks: 16847
APNIC Region origin ASes present in the Internet Routing Table: 2401
APNIC Region origin ASes announcing only one prefix: 704
APNIC Region transit ASes present in the Internet Routing Table: 368
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 205874624
Equivalent to 12 /8s, 69 /16s and 101 /24s
Percentage of available APNIC address space announced: 76.4
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: 92941
Total ARIN prefixes after maximum aggregation: 55806
Prefixes being announced from the ARIN address blocks: 72403
Unique aggregates announced from the ARIN address blocks: 27421
ARIN Region origin ASes present in the Internet Routing Table: 10344
ARIN Region origin ASes announcing only one prefix: 3842
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 275452416
Equivalent to 16 /8s, 107 /16s and 18 /24s
Percentage of available ARIN address space announced: 68.4
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: 34066
Total RIPE prefixes after maximum aggregation: 23029
Prefixes being announced from the RIPE address blocks: 31035
Unique aggregates announced from the RIPE address blocks: 20807
RIPE Region origin ASes present in the Internet Routing Table: 7292
RIPE Region origin ASes announcing only one prefix: 3821
RIPE Region transit ASes present in the Internet Routing Table: 1202
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 223241728
Equivalent to 13 /8s, 78 /16s and 102 /24s
Percentage of available RIPE address space announced: 66.5
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: 9888
Total LACNIC prefixes after maximum aggregation: 3285
Prefixes being announced from the LACNIC address blocks: 8187
Unique aggregates announced from the LACNIC address blocks: 4760
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 210
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22738688
Equivalent to 1 /8s, 90 /16s and 247 /24s
Percentage of available LACNIC address space announced: 33.9
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: 1787
Total AfriNIC prefixes after maximum aggregation: 847
Prefixes being announced from the AfriNIC address blocks: 1145
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: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 18
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 1027 6331 215 CHINANET-BACKBONE
9583 827 77 12 Sify Limited
4755 749 259 68 Videsh Sanchar Nigam Ltd. Aut
1221 737 1342 513 Telstra Pty Ltd
4766 634 3927 285 Korea Telecom (KIX)
7545 515 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 395 215 63 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
7474 333 258 229 SingTel Optus Pty Ltd
17557 332 24 161 Pakistan Telecom
9929 326 216 46 China Netcom Corp.
18302 304 141 159 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
703 256 259 209 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1468 6316 962 AT&T WorldNet Services
4323 1192 706 233 Time Warner Telecom
721 1071 21938 308 DLA Systems Automation Center
174 1069 5847 1001 Cogent Communications
701 983 8134 827 UUNET Technologies, Inc.
6197 960 407 496 BellSouth Network Solutions,
2386 931 546 697 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 848 2801 598 Sprint
209 659 3621 523 Qwest
20115 654 531 345 Charter Communications
11492 603 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 558 247 65 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
19262 551 1560 133 Verizon Global Networks
3602 541 126 103 Sprint Canada, Inc.
3356 519 10633 403 Level 3 Communications, LLC
6478 492 1426 274 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 1959 479 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 234 275 220 Romania Data Systems S.A.
3246 229 477 222 Song Networks
6746 202 52 173 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 161 316 134 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 92 AUCS Communications Services
8866 158 37 9 Bulgarian Telecommunication C
24863 151 37 6 LINKdotNET AS number
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 390 692 168 UniNet S.A. de C.V.
16814 294 18 6 NSS, S.A.
11172 284 88 70 Servicios Alestra S.A de C.V
11664 217 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 146 69 15 Telecom Argentina Stet-France
13999 131 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 128 8 20 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
14522 103 12 8 SatNet S.A.
11311 99 8 10 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 228 The Internet Solution
8452 142 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 69 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 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 827 815 Sify Limited
4134 1027 812 CHINANET-BACKBONE
721 1071 763 DLA Systems Automation Center
4755 749 681 Videsh Sanchar Nigam Ltd. Aut
11492 603 593 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 493 Canadian Research Network
6197 960 464 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 515 445 TPG Internet Pty Ltd
3602 541 438 Sprint Canada, Inc.
19262 551 418 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 404 357 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 634 349 Korea Telecom (KIX)
812 368 343 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 /12:80
/13:187 /14:340 /15:665 /16:8603 /17:2879 /18:4852
/19:11017 /20:12122 /21:10194 /22:13462 /23:14648 /24:95264
/25:343 /26:286 /27:191 /28:32 /29:11 /30:36
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 721 1468 AT&T WorldNet Services
9583 649 827 Sify Limited
2386 646 931 AT&T Data Communications Serv
11492 595 603 Cable One
4323 569 1192 Time Warner Telecom
19916 557 563 OLM LLC
4766 440 634 Korea Telecom (KIX)
855 430 558 Canadian Research Network
7011 398 460 Citizens Utilities
702 391 610 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 366 848 Sprint
6198 352 482 BellSouth Network Solutions,
6517 323 349 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 288 304 SK Global co., Ltd
701 284 983 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:32 12:1624 13:1 15:11 16:3
17:3 18:3 20:41 24:660 30:2 32:64
38:178 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:100 59:90 60:145 61:784
62:781 63:1896 64:2966 65:2136 66:2918 67:637
68:672 69:1325 70:226 71:34 72:452 80:673
81:600 82:489 83:302 84:303 85:365 86:185
87:90 125:50 128:158 129:169 130:95 131:308
132:35 133:1 134:149 135:45 136:168 137:69
138:173 139:69 140:440 141:146 142:399 143:146
144:220 145:34 146:302 147:131 148:267 149:194
150:108 151:73 152:111 153:94 154:5 155:152
156:84 157:119 158:148 159:178 160:85 161:76
162:241 163:147 164:190 165:185 166:146 167:245
168:454 169:144 170:312 171:12 192:5753 193:3356
194:2434 195:1629 196:707 198:3928 199:3259 200:4291
201:442 202:6234 203:6598 204:3844 205:2054 206:2445
207:2919 208:2017 209:3490 210:1776 211:845 212:1212
213:1365 214:313 215:41 216:3861 217:1158 218:216
219:128 220:537 221:311 222:127
End of report
