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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 24 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 179290
Prefixes after maximum aggregation: 100371
Unique aggregates announced to Internet: 87244
Total ASes present in the Internet Routing Table: 21347
Origin-only ASes present in the Internet Routing Table: 18557
Origin ASes announcing only one prefix: 8784
Transit ASes present in the Internet Routing Table: 2790
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: 22
Prefixes from unregistered ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1482467616
Equivalent to 88 /8s, 92 /16s and 169 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86698
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37677
Total APNIC prefixes after maximum aggregation: 15893
Prefixes being announced from the APNIC address blocks: 35461
Unique aggregates announced from the APNIC address blocks: 17351
APNIC Region origin ASes present in the Internet Routing Table: 2461
APNIC Region origin ASes announcing only one prefix: 692
APNIC Region transit ASes present in the Internet Routing Table: 382
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211044576
Equivalent to 12 /8s, 148 /16s and 72 /24s
Percentage of available APNIC address space announced: 66.0
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, 121/8, 122/7, 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: 94214
Total ARIN prefixes after maximum aggregation: 56367
Prefixes being announced from the ARIN address blocks: 73497
Unique aggregates announced from the ARIN address blocks: 28123
ARIN Region origin ASes present in the Internet Routing Table: 10461
ARIN Region origin ASes announcing only one prefix: 3891
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: 282868224
Equivalent to 16 /8s, 220 /16s and 58 /24s
Percentage of available ARIN address space announced: 70.3
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: 35287
Total RIPE prefixes after maximum aggregation: 23785
Prefixes being announced from the RIPE address blocks: 32293
Unique aggregates announced from the RIPE address blocks: 21640
RIPE Region origin ASes present in the Internet Routing Table: 7541
RIPE Region origin ASes announcing only one prefix: 3942
RIPE Region transit ASes present in the Internet Routing Table: 1250
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230145664
Equivalent to 13 /8s, 183 /16s and 190 /24s
Percentage of available RIPE address space announced: 68.6
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: 10274
Total LACNIC prefixes after maximum aggregation: 3459
Prefixes being announced from the LACNIC address blocks: 8438
Unique aggregates announced from the LACNIC address blocks: 5045
LACNIC Region origin ASes present in the Internet Routing Table: 665
LACNIC Region origin ASes announcing only one prefix: 216
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24766464
Equivalent to 1 /8s, 121 /16s and 232 /24s
Percentage of available LACNIC address space announced: 36.9
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: 1831
Total AfriNIC prefixes after maximum aggregation: 867
Prefixes being announced from the AfriNIC address blocks: 1218
Unique aggregates announced from the AfriNIC address blocks: 856
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3035136
Equivalent to 0 /8s, 46 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 9.0
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 979 6450 206 CHINANET-BACKBONE
9583 841 109 15 Sify Limited
4755 786 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 719 3929 303 Korea Telecom (KIX)
1221 667 1364 474 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 513 211 69 BHARTI BT INTERNET LTD.
17676 478 6917 103 Softbank BB Corp.
17488 435 26 9 Hathway IP Over Cable Interne
9443 408 93 85 Primus Telecommunications
4802 364 75 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 330 68 23 Reliance Infocom Ltd Internet
17974 317 77 36 PT TELEKOMUNIKASI INDONESIA
17557 312 25 162 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6265 961 AT&T WorldNet Services
4323 1203 724 236 Time Warner Telecom
174 1037 5807 949 Cogent Communications
721 1031 21938 308 DLA Systems Automation Center
6197 977 437 508 BellSouth Network Solutions,
701 966 8099 808 UUNET Technologies, Inc.
18566 892 272 8 Covad Communications
2386 879 501 687 AT&T Data Communications Serv
1239 849 2791 603 Sprint
209 659 3603 525 Qwest
20115 659 538 341 Charter Communications
11492 644 89 12 Cable One
22773 610 1478 33 Cox Communications, Inc.
19262 595 1705 140 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 558 242 59 Canadian Research Network
6478 535 1481 297 AT&T Worldnet Services
3602 521 127 106 Sprint Canada, Inc.
5668 518 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 587 1954 465 UUNET - Commercial IP service
3301 302 1071 288 TeliaNet Sweden
3352 302 1500 34 Ibernet, Internet Access Netw
3320 283 3485 237 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 246 2024 238 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 221 274 205 Romania Data Systems S.A.
6746 215 85 187 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 171 37 13 Bulgarian Telecommunication C
3215 167 1366 81 France Telecom Transpac
24863 167 38 9 LINKdotNET AS number
5400 166 328 136 BT Ignite European Backbone
3300 161 170 92 AUCS Communications Services
6830 159 669 33 UPC Distribution Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 560 1048 217 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 301 110 78 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 191 52 13 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
7303 152 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 122 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 78 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
11311 100 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
4270 94 17 9 Red de Interconexion Universi
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 819 233 The Internet Solution
8452 151 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 76 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 72 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 36 9 27 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 21 4 4 Swift Global Kenya Ltd.Is an
12455 19 6 5 Jambonet Autonomous system
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 1203 967 Time Warner Telecom
18566 892 884 Covad Communications
9583 841 826 Sify Limited
4134 979 773 CHINANET-BACKBONE
721 1031 723 DLA Systems Automation Center
4755 786 723 Videsh Sanchar Nigam Ltd. Aut
11492 644 632 Cable One
22773 610 577 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 499 Canadian Research Network
5668 518 494 CenturyTel Internet Holdings,
6197 977 469 BellSouth Network Solutions,
19262 595 455 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
9498 513 444 BHARTI BT INTERNET LTD.
17488 435 426 Hathway IP Over Cable Interne
4766 719 416 Korea Telecom (KIX)
3602 521 415 Sprint Canada, Inc.
812 438 410 Rogers WAVE
17676 478 375 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
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 /11:20 /12:87
/13:196 /14:349 /15:682 /16:8655 /17:2975 /18:4976
/19:11220 /20:12391 /21:10715 /22:13705 /23:14925 /24:97411
/25:311 /26:254 /27:202 /28:62 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 875 892 Covad Communications
6197 785 977 BellSouth Network Solutions,
7018 747 1474 AT&T WorldNet Services
9583 660 841 Sify Limited
11492 635 644 Cable One
2386 613 879 AT&T Data Communications Serv
4323 578 1203 Time Warner Telecom
19916 557 563 OLM LLC
4766 519 719 Korea Telecom (KIX)
855 444 558 Canadian Research Network
5668 407 518 CenturyTel Internet Holdings,
7011 403 469 Citizens Utilities
702 372 587 UUNET - Commercial IP service
1239 366 849 Sprint
6198 357 500 BellSouth Network Solutions,
6517 343 371 Yipes Communications, Inc.
15270 334 361 PaeTec.net -a division of Pae
812 317 438 Rogers WAVE
22773 315 610 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1635 13:1 15:11 16:3
17:3 18:4 20:42 24:765 25:1 30:2
32:66 38:190 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:157 60:183
61:818 62:749 63:1886 64:2949 65:2151 66:3014
67:589 68:693 69:1387 70:276 71:50 72:580
73:22 80:734 81:601 82:512 83:360 84:339
85:410 86:265 87:150 88:18 89:7 124:5
125:183 128:155 129:174 130:102 131:310 132:34
133:7 134:151 135:46 136:169 137:62 138:181
139:88 140:447 141:135 142:413 143:144 144:225
145:39 146:313 147:134 148:324 149:186 150:114
151:72 152:61 153:101 154:6 155:185 156:91
157:119 158:153 159:178 160:88 161:68 162:255
163:175 164:166 165:179 166:147 167:236 168:477
169:139 170:315 171:12 190:30 192:5757 193:3359
194:2460 195:1726 196:736 198:3891 199:3271 200:4199
201:559 202:6467 203:6752 204:3841 205:2071 206:2439
207:2920 208:2018 209:3467 210:1842 211:782 212:1285
213:1445 214:319 215:40 216:3821 217:1169 218:233
219:138 220:643 221:334 222:146
End of report
