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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 10 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187797
Prefixes after maximum aggregation: 103808
Unique aggregates announced to Internet: 91984
Total ASes present in the Internet Routing Table: 22112
Origin-only ASes present in the Internet Routing Table: 19231
Origin ASes announcing only one prefix: 9169
Transit ASes present in the Internet Routing Table: 2881
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: 26
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1520056736
Equivalent to 90 /8s, 154 /16s and 57 /24s
Percentage of available address space announced: 41.0
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92521
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39525
Total APNIC prefixes after maximum aggregation: 16556
Prefixes being announced from the APNIC address blocks: 37238
Unique aggregates announced from the APNIC address blocks: 18276
APNIC Region origin ASes present in the Internet Routing Table: 2545
APNIC Region origin ASes announcing only one prefix: 717
APNIC Region transit ASes present in the Internet Routing Table: 392
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225371360
Equivalent to 13 /8s, 110 /16s and 228 /24s
Percentage of available APNIC address space announced: 70.5
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: 97286
Total ARIN prefixes after maximum aggregation: 57629
Prefixes being announced from the ARIN address blocks: 71394
Unique aggregates announced from the ARIN address blocks: 26428
ARIN Region origin ASes present in the Internet Routing Table: 10690
ARIN Region origin ASes announcing only one prefix: 4007
ARIN Region transit ASes present in the Internet Routing Table: 983
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292488704
Equivalent to 17 /8s, 111 /16s and 6 /24s
Percentage of available ARIN address space announced: 75.8
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: 37566
Total RIPE prefixes after maximum aggregation: 25100
Prefixes being announced from the RIPE address blocks: 34584
Unique aggregates announced from the RIPE address blocks: 23207
RIPE Region origin ASes present in the Internet Routing Table: 7977
RIPE Region origin ASes announcing only one prefix: 4178
RIPE Region transit ASes present in the Internet Routing Table: 1314
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 248997312
Equivalent to 14 /8s, 215 /16s and 101 /24s
Percentage of available RIPE address space announced: 78.1
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: 11301
Total LACNIC prefixes after maximum aggregation: 3636
Prefixes being announced from the LACNIC address blocks: 9399
Unique aggregates announced from the LACNIC address blocks: 5445
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 220
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 26920704
Equivalent to 1 /8s, 154 /16s and 199 /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: 2112
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1459
Unique aggregates announced from the AfriNIC address blocks: 944
AfriNIC Region origin ASes present in the Internet Routing Table: 151
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4064512
Equivalent to 0 /8s, 62 /16s and 5 /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 1126 7083 217 CHINANET-BACKBONE
4755 906 259 72 Videsh Sanchar Nigam Ltd. Aut
9583 900 109 16 Sify Limited
4766 678 4435 304 Korea Telecom (KIX)
1221 616 1556 472 Telstra Pty Ltd
9498 565 211 67 BHARTI BT INTERNET LTD.
7545 527 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 487 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 384 81 175 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 341 85 26 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 328 27 159 Pakistan Telecom
9929 325 221 58 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 6243 967 AT&T WorldNet Services
4323 1291 734 254 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 991 21945 305 DLA Systems Automation Center
174 961 5787 902 Cogent Communications
19029 951 151 111 New Edge Networks
18566 938 272 8 Covad Communications
701 924 8007 766 UUNET Technologies, Inc.
2386 879 522 676 AT&T Data Communications Serv
1239 849 2805 601 Sprint
209 711 3595 557 Qwest
19262 697 2098 167 Verizon Global Networks
20115 691 602 372 Charter Communications
22773 658 1745 45 Cox Communications, Inc.
7011 634 218 412 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
702 576 1951 452 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 234 504 224 Song Networks
6746 228 89 204 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 209 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 193 742 168 SWIPnet Swedish IP Network
8866 178 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 171 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 698 1081 221 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
21826 133 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 129 149 78 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 116 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 99 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 1291 1037 Time Warner Telecom
18566 938 930 Covad Communications
4134 1126 909 CHINANET-BACKBONE
9583 900 884 Sify Limited
19029 951 840 New Edge Networks
4755 906 834 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 697 530 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
9498 565 498 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 486 Canadian Research Network
8151 698 477 UniNet S.A. de C.V.
7545 527 457 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
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
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
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 /11:28 /12:90
/13:202 /14:361 /15:706 /16:8823 /17:3197 /18:5283
/19:11608 /20:13132 /21:11326 /22:14525 /23:15616 /24:101806
/25:384 /26:263 /27:212 /28:63 /29:70 /30:35
/31:0 /32:32
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 728 900 Sify Limited
4323 633 1291 Time Warner Telecom
11492 623 632 Cable One
2386 601 879 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 543 634 Citizens Utilities
4766 488 678 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 413 531 CenturyTel Internet Holdings,
15270 390 421 PaeTec.net -a division of Pae
1239 386 849 Sprint
702 360 576 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 357 387 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
22773 344 658 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1629 13:1 15:12 16:3
17:3 18:4 20:43 24:740 25:1 30:2
32:59 38:216 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:152 59:188
60:181 61:853 62:760 63:1928 64:3172 65:2254
66:2986 67:600 68:657 69:1485 70:329 71:82
72:700 73:23 74:34 80:778 81:633 82:599
83:388 84:384 85:530 86:351 87:328 88:82
89:180 124:272 125:384 128:166 129:185 130:109
131:319 132:33 133:8 134:158 135:46 136:177
137:73 138:197 139:68 140:466 141:136 142:376
143:164 144:228 145:39 146:326 147:136 148:328
149:187 150:114 151:82 152:68 153:107 154:6
155:198 156:98 157:143 158:161 159:171 160:87
161:72 162:261 163:147 164:179 165:194 166:163
167:245 168:484 169:129 170:335 171:14 183:1
190:59 192:5761 193:3373 194:2608 195:1847 196:838
198:3904 199:3233 200:4447 201:935 202:6600 203:6859
204:3892 205:2087 206:2405 207:2942 208:2072 209:3800
210:1917 211:684 212:1233 213:1471 214:355 215:41
216:4117 217:1169 218:275 219:185 220:659 221:358
222:150
End of report
