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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 16 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186555
Prefixes after maximum aggregation: 103080
Unique aggregates announced to Internet: 91246
Total ASes present in the Internet Routing Table: 21946
Origin-only ASes present in the Internet Routing Table: 19074
Origin ASes announcing only one prefix: 9097
Transit ASes present in the Internet Routing Table: 2872
Transit-only ASes present in the Internet Routing Table: 70
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: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1505280096
Equivalent to 89 /8s, 184 /16s and 192 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91910
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39178
Total APNIC prefixes after maximum aggregation: 16412
Prefixes being announced from the APNIC address blocks: 36890
Unique aggregates announced from the APNIC address blocks: 18151
APNIC Region origin ASes present in the Internet Routing Table: 2536
APNIC Region origin ASes announcing only one prefix: 721
APNIC Region transit ASes present in the Internet Routing Table: 389
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221864672
Equivalent to 13 /8s, 57 /16s and 98 /24s
Percentage of available APNIC address space announced: 69.4
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, 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: 97201
Total ARIN prefixes after maximum aggregation: 57426
Prefixes being announced from the ARIN address blocks: 76330
Unique aggregates announced from the ARIN address blocks: 29407
ARIN Region origin ASes present in the Internet Routing Table: 10642
ARIN Region origin ASes announcing only one prefix: 3990
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294300928
Equivalent to 17 /8s, 138 /16s and 173 /24s
Percentage of available ARIN address space announced: 73.1
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: 37192
Total RIPE prefixes after maximum aggregation: 24777
Prefixes being announced from the RIPE address blocks: 34167
Unique aggregates announced from the RIPE address blocks: 22972
RIPE Region origin ASes present in the Internet Routing Table: 7873
RIPE Region origin ASes announcing only one prefix: 4118
RIPE Region transit ASes present in the Internet Routing Table: 1304
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 246176640
Equivalent to 14 /8s, 172 /16s and 91 /24s
Percentage of available RIPE address space announced: 73.4
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: 10916
Total LACNIC prefixes after maximum aggregation: 3570
Prefixes being announced from the LACNIC address blocks: 9092
Unique aggregates announced from the LACNIC address blocks: 5378
LACNIC Region origin ASes present in the Internet Routing Table: 676
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 128
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26378240
Equivalent to 1 /8s, 146 /16s and 128 /24s
Percentage of available LACNIC address space announced: 39.3
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: 2055
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1447
Unique aggregates announced from the AfriNIC address blocks: 943
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4034048
Equivalent to 0 /8s, 61 /16s and 142 /24s
Percentage of available AfriNIC address space announced: 12.0
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 1004 6949 211 CHINANET-BACKBONE
4755 900 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 897 109 16 Sify Limited
4766 682 3924 303 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 570 212 72 BHARTI BT INTERNET LTD.
7545 528 108 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
2907 336 1749 312 SINET Japan
18101 335 69 23 Reliance Infocom Ltd Internet
17849 331 21 111 Telecommunications Technology
9929 322 220 56 China Netcom Corp.
17557 313 27 158 Pakistan Telecom
17974 304 118 25 PT TELEKOMUNIKASI INDONESIA
7474 297 210 228 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
4837 267 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1503 6255 974 AT&T WorldNet Services
4323 1260 732 252 Time Warner Telecom
721 1010 21945 305 DLA Systems Automation Center
6197 1009 619 471 BellSouth Network Solutions,
174 958 5783 906 Cogent Communications
701 937 8047 778 UUNET Technologies, Inc.
18566 931 272 8 Covad Communications
2386 874 537 666 AT&T Data Communications Serv
19029 867 151 111 New Edge Networks
1239 850 2804 603 Sprint
209 714 3614 559 Qwest
20115 675 592 363 Charter Communications
19262 673 1984 158 Verizon Global Networks
22773 645 1488 42 Cox Communications, Inc.
7011 630 217 411 Citizens Utilities
11492 627 86 20 Cable One
6198 591 534 236 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 560 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 293 474 271 COLT Telecommunications
3320 284 3988 235 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 198 711 173 SWIPnet Swedish IP Network
3269 196 2070 75 TELECOM ITALIA
3215 192 1614 90 France Telecom Transpac
8866 175 37 15 Bulgarian Telecommunication C
5400 171 363 140 BT Ignite European Backbone
786 170 1762 170 The JANET IP Service
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 162 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 699 1067 228 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 321 110 84 Servicios Alestra S.A de C.V
16814 308 20 8 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
21826 130 16 21 INTERCABLE
5639 129 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6505 123 91 83 Global One Communicaoes Ltda
6503 121 149 74 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
7910 106 7 10 ANDINET ON LINE
23216 100 21 8 RAMtelecom Telecomunicaciones
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
15475 88 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1260 1008 Time Warner Telecom
18566 931 923 Covad Communications
9583 897 881 Sify Limited
4755 900 829 Videsh Sanchar Nigam Ltd. Aut
4134 1004 793 CHINANET-BACKBONE
19029 867 756 New Edge Networks
721 1010 705 DLA Systems Automation Center
11492 627 607 Cable One
22773 645 603 Cox Communications, Inc.
6197 1009 538 BellSouth Network Solutions,
19262 673 515 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 570 498 BHARTI BT INTERNET LTD.
855 560 496 Canadian Research Network
17488 501 494 Hathway IP Over Cable Interne
8151 699 471 UniNet S.A. de C.V.
7545 528 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 538 429 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
43144 UNALLOCATED 12.149.157.0/24 7018 AT&T WorldNet Servic
64501 RESERVED 68.142.125.0/24 22822 Limelight Networks,
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24296 UNALLOCATED 203.95.16.0/21 17676 Softbank BB Corp.
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.172.0.0/19 721 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 /8:17 /9:9 /10:9 /11:27 /12:88
/13:200 /14:357 /15:696 /16:8779 /17:3172 /18:5226
/19:11513 /20:12972 /21:11218 /22:14413 /23:15495 /24:101334
/25:366 /26:252 /27:217 /28:60 /29:69 /30:33
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 914 931 Covad Communications
19029 799 867 New Edge Networks
6197 797 1009 BellSouth Network Solutions,
7018 794 1503 AT&T WorldNet Services
9583 726 897 Sify Limited
11492 618 627 Cable One
4323 607 1260 Time Warner Telecom
2386 594 874 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 630 Citizens Utilities
4766 491 682 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 442 591 BellSouth Network Solutions,
855 434 560 Canadian Research Network
5668 415 535 CenturyTel Internet Holdings,
1239 379 850 Sprint
15270 371 402 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 354 383 Yipes Communications, Inc.
8151 343 699 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1619 13:1 15:12 16:3
17:3 18:4 20:43 24:883 25:1 30:2
32:66 38:211 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:145 59:195 60:182
61:833 62:788 63:1914 64:3119 65:2236 66:3077
67:626 68:685 69:1478 70:328 71:76 72:677
73:23 74:29 80:774 81:613 82:579 83:374
84:377 85:519 86:345 87:309 88:66 89:136
124:216 125:367 128:152 129:176 130:107 131:317
132:31 133:8 134:151 135:46 136:177 137:71
138:198 139:66 140:467 141:134 142:394 143:161
144:224 145:42 146:307 147:133 148:326 149:189
150:114 151:80 152:64 153:107 154:6 155:197
156:96 157:130 158:165 159:169 160:87 161:72
162:253 163:146 164:179 165:180 166:166 167:243
168:478 169:131 170:327 171:12 172:1 183:1
190:95 192:5758 193:3390 194:2576 195:1816 196:843
198:3884 199:3258 200:4321 201:827 202:6548 203:6864
204:3894 205:2109 206:2417 207:2931 208:2037 209:3798
210:1941 211:701 212:1250 213:1458 214:340 215:41
216:4117 217:1169 218:251 219:179 220:653 221:357
222:145
End of report
