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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 09 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187560
Prefixes after maximum aggregation: 103695
Unique aggregates announced to Internet: 91945
Total ASes present in the Internet Routing Table: 22095
Origin-only ASes present in the Internet Routing Table: 19216
Origin ASes announcing only one prefix: 9159
Transit ASes present in the Internet Routing Table: 2879
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1514936992
Equivalent to 90 /8s, 76 /16s and 26 /24s
Percentage of available address space announced: 40.9
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92385
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39518
Total APNIC prefixes after maximum aggregation: 16541
Prefixes being announced from the APNIC address blocks: 37239
Unique aggregates announced from the APNIC address blocks: 18274
APNIC Region origin ASes present in the Internet Routing Table: 2546
APNIC Region origin ASes announcing only one prefix: 720
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225068768
Equivalent to 13 /8s, 106 /16s and 70 /24s
Percentage of available APNIC address space announced: 70.4
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: 97121
Total ARIN prefixes after maximum aggregation: 57553
Prefixes being announced from the ARIN address blocks: 71299
Unique aggregates announced from the ARIN address blocks: 26418
ARIN Region origin ASes present in the Internet Routing Table: 10682
ARIN Region origin ASes announcing only one prefix: 4005
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 290262528
Equivalent to 17 /8s, 77 /16s and 14 /24s
Percentage of available ARIN address space announced: 75.2
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, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37511
Total RIPE prefixes after maximum aggregation: 25070
Prefixes being announced from the RIPE address blocks: 34543
Unique aggregates announced from the RIPE address blocks: 23171
RIPE Region origin ASes present in the Internet Routing Table: 7965
RIPE Region origin ASes announcing only one prefix: 4168
RIPE Region transit ASes present in the Internet Routing Table: 1315
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247820992
Equivalent to 14 /8s, 197 /16s and 114 /24s
Percentage of available RIPE address space announced: 77.7
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, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11282
Total LACNIC prefixes after maximum aggregation: 3639
Prefixes being announced from the LACNIC address blocks: 9372
Unique aggregates announced from the LACNIC address blocks: 5437
LACNIC Region origin ASes present in the Internet Routing Table: 681
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26922240
Equivalent to 1 /8s, 154 /16s and 205 /24s
Percentage of available LACNIC address space announced: 40.1
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: 2122
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1464
Unique aggregates announced from the AfriNIC address blocks: 952
AfriNIC Region origin ASes present in the Internet Routing Table: 155
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4066560
Equivalent to 0 /8s, 62 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 12.1
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 1130 7088 221 CHINANET-BACKBONE
9583 899 109 16 Sify Limited
4755 871 257 71 Videsh Sanchar Nigam Ltd. Aut
4766 676 4435 303 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 486 7029 108 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 384 81 175 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 342 85 25 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 328 27 159 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 311 120 29 PT TELEKOMUNIKASI INDONESIA
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1507 6240 967 AT&T WorldNet Services
4323 1290 734 254 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 991 21945 305 DLA Systems Automation Center
174 957 5787 902 Cogent Communications
19029 951 151 111 New Edge Networks
18566 938 272 8 Covad Communications
701 924 8009 766 UUNET Technologies, Inc.
2386 878 522 675 AT&T Data Communications Serv
1239 849 2805 601 Sprint
209 711 3595 557 Qwest
19262 695 2089 165 Verizon Global Networks
20115 689 601 370 Charter Communications
22773 658 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 632 86 23 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 64 Canadian Research Network
3602 538 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 455 UUNET - Commercial IP service
3352 308 1612 29 Ibernet, Internet Access Netw
3301 307 1071 293 TeliaNet Sweden
8220 291 474 268 COLT Telecommunications
3320 285 3989 239 Deutsche Telekom AG
680 244 2025 241 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 228 89 204 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 198 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 195 742 169 SWIPnet Swedish IP Network
8866 176 37 15 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
5400 172 363 141 BT Ignite European Backbone
30890 172 15 65 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
9121 169 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 707 1083 223 UniNet S.A. de C.V.
22047 409 158 11 VTR PUNTO NET S.A.
11172 324 110 84 Servicios Alestra S.A de C.V
16814 318 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 163 76 20 Telecom Argentina Stet-France
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
21826 131 16 21 INTERCABLE
6503 129 149 78 AVANTEL, S.A.
19169 124 8 31 Telconet
14259 115 10 12 GTD Internet S.A.
23216 110 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 98 13 7 SatNet S.A.
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 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
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
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
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 1290 1036 Time Warner Telecom
18566 938 930 Covad Communications
4134 1130 909 CHINANET-BACKBONE
9583 899 883 Sify Limited
19029 951 840 New Edge Networks
4755 871 800 Videsh Sanchar Nigam Ltd. Aut
721 991 686 DLA Systems Automation Center
22773 658 613 Cox Communications, Inc.
11492 632 609 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 695 530 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 486 Canadian Research Network
8151 707 484 UniNet S.A. de C.V.
7545 530 460 TPG Internet Pty Ltd
3602 538 429 Sprint Canada, Inc.
22047 409 398 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
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
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
223.1.1.0/24 22724 PUNTONET S.A.
223.1.2.0/24 22724 PUNTONET S.A.
223.1.3.0/24 22724 PUNTONET S.A.
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 /12:89
/13:199 /14:361 /15:706 /16:8800 /17:3203 /18:5280
/19:11599 /20:13112 /21:11308 /22:14509 /23:15602 /24:101679
/25:381 /26:263 /27:212 /28:61 /29:69 /30:34
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 921 938 Covad Communications
19029 882 951 New Edge Networks
6197 796 1007 BellSouth Network Solutions,
7018 794 1507 AT&T WorldNet Services
9583 728 899 Sify Limited
4323 633 1290 Time Warner Telecom
11492 623 632 Cable One
2386 600 878 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 486 676 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 413 531 CenturyTel Internet Holdings,
15270 389 420 PaeTec.net -a division of Pae
1239 386 849 Sprint
702 358 579 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
8151 350 707 UniNet S.A. de C.V.
17849 347 347 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1630 13:1 15:12 16:3
17:3 18:4 20:43 24:740 25:1 30:2
32:59 38:211 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:152 59:188
60:180 61:853 62:761 63:1919 64:3178 65:2210
66:2987 67:600 68:657 69:1485 70:328 71:80
72:694 73:23 74:34 80:779 81:628 82:598
83:388 84:384 85:530 86:389 87:328 88:80
89:175 124:269 125:380 128:168 129:183 130:109
131:318 132:31 133:8 134:158 135:46 136:178
137:72 138:197 139:65 140:466 141:136 142:380
143:163 144:227 145:39 146:326 147:136 148:330
149:187 150:114 151:80 152:64 153:107 154:6
155:198 156:98 157:143 158:161 159:171 160:87
161:72 162:260 163:146 164:180 165:194 166:163
167:246 168:484 169:129 170:334 171:14 183:1
190:59 192:5732 193:3374 194:2607 195:1844 196:844
198:3903 199:3236 200:4429 201:933 202:6602 203:6869
204:3892 205:2084 206:2405 207:2943 208:2069 209:3799
210:1918 211:685 212:1198 213:1472 214:354 215:41
216:4115 217:1165 218:275 219:184 220:656 221:358
222:150 223:3
End of report
