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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 08 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210197
Prefixes after maximum aggregation: 113192
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102476
Total ASes present in the Internet Routing Table: 24287
Origin-only ASes present in the Internet Routing Table: 21151
Origin ASes announcing only one prefix: 10221
Transit ASes present in the Internet Routing Table: 3136
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
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: 1674059180
Equivalent to 99 /8s, 200 /16s and 29 /24s
Percentage of available address space announced: 45.2
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107804
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47258
Total APNIC prefixes after maximum aggregation: 18844
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 44560
Unique aggregates announced from the APNIC address blocks: 19502
APNIC Region origin ASes present in the Internet Routing Table: 2839
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 424
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283541504
Equivalent to 16 /8s, 230 /16s and 128 /24s
Percentage of available APNIC address space announced: 70.2
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, 116/6, 120/6, 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: 102942
Total ARIN prefixes after maximum aggregation: 60883
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75817
Unique aggregates announced from the ARIN address blocks: 29204
ARIN Region origin ASes present in the Internet Routing Table: 11310
ARIN Region origin ASes announcing only one prefix: 4328
ARIN Region transit ASes present in the Internet Routing Table: 1047
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 316560768
Equivalent to 18 /8s, 222 /16s and 85 /24s
Percentage of available ARIN address space announced: 69.9
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43561
Total RIPE prefixes after maximum aggregation: 28461
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40280
Unique aggregates announced from the RIPE address blocks: 26854
RIPE Region origin ASes present in the Internet Routing Table: 9122
RIPE Region origin ASes announcing only one prefix: 4802
RIPE Region transit ASes present in the Internet Routing Table: 1463
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 288726820
Equivalent to 17 /8s, 53 /16s and 159 /24s
Percentage of available RIPE address space announced: 78.2
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13881
Total LACNIC prefixes after maximum aggregation: 4041
LACNIC Deaggregation factor: 3.44
Prefixes being announced from the LACNIC address blocks: 11946
Unique aggregates announced from the LACNIC address blocks: 7275
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37202176
Equivalent to 2 /8s, 55 /16s and 169 /24s
Percentage of available LACNIC address space announced: 55.4
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: 2552
Total AfriNIC prefixes after maximum aggregation: 961
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1828
Unique aggregates announced from the AfriNIC address blocks: 1153
AfriNIC Region origin ASes present in the Internet Routing Table: 177
AfriNIC Region origin ASes announcing only one prefix: 54
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5393920
Equivalent to 0 /8s, 82 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1281 8686 278 CHINANET-BACKBONE
4755 1098 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1040 109 16 Sify Limited
9498 943 467 65 BHARTI BT INTERNET LTD.
23577 775 35 702 Korea Telecom (ATM-MPLS)
4766 764 4944 313 Korea Telecom (KIX)
17488 593 39 22 Hathway IP Over Cable Interne
1221 569 1698 438 Telstra Pty Ltd
7545 562 126 73 TPG Internet Pty Ltd
18101 520 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
9443 441 111 73 Primus Telecommunications
4812 440 763 71 China Telecom (Shanghai)
7474 377 215 254 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 359 34 167 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6124 986 AT&T WorldNet Services
2386 1107 570 733 AT&T Data Communications Serv
4323 1063 821 303 Time Warner Telecom
6197 1025 650 503 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
701 940 6696 746 UUNET Technologies, Inc.
174 937 6790 866 Cogent Communications
11492 935 100 15 Cable One
1239 826 2730 577 Sprint
20115 799 698 413 Charter Communications
7011 781 227 472 Citizens Utilities
19262 758 2591 179 Verizon Global Networks
22773 724 1872 41 Cox Communications, Inc.
209 719 3742 565 Qwest
721 684 21836 280 DLA Systems Automation Center
852 603 1091 391 Telus Advanced Communications
5668 576 161 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 561 250 73 Canadian Research Network
6198 553 522 258 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
3301 307 1199 289 TeliaNet Sweden
24863 307 45 25 LINKdotNET AS number
3320 298 4993 249 Deutsche Telekom AG
8220 269 472 261 COLT Telecommunications
6746 266 95 245 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 236 2192 93 France Telecom Transpac
8708 236 284 222 Romania Data Systems S.A.
1257 223 1100 172 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
30890 215 19 92 SC Kappa Invexim SRL
3269 212 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
8551 201 194 29 Bezeq International
20858 197 34 3 EgyNet
3352 193 1767 31 Ibernet, Internet Access Netw
3300 181 171 91 AUCS Communications Services
12479 178 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 989 2111 205 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 363 110 76 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
14117 239 16 13 Telefonica del Sur S.A.
7303 236 106 32 Telecom Argentina Stet-France
11556 235 116 6 Cable-Wireless Panama
6147 228 182 20 Telefonica Del Peru
6503 220 175 92 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 148 25 57 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 142 9 24 Telconet
14522 140 22 9 SatNet S.A.
19429 139 84 34 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 238 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 114 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 52 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 39 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1040 1024 Sify Limited
4755 1098 1023 Videsh Sanchar Nigam Ltd. Aut
4134 1281 1003 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 935 920 Cable One
9498 943 878 BHARTI BT INTERNET LTD.
8151 989 784 UniNet S.A. de C.V.
4323 1063 760 Time Warner Telecom
22773 724 683 Cox Communications, Inc.
19262 758 579 Verizon Global Networks
17488 593 571 Hathway IP Over Cable Interne
5668 576 559 CenturyTel Internet Holdings,
6197 1025 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 520 497 Reliance Infocom Ltd Internet
7545 562 489 TPG Internet Pty Ltd
855 561 488 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 764 451 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
42.205.192.0/20 36925 Meditelecom
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
172.33.1.0/24 7018 AT&T WorldNet Services
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /8:19 /9:10 /10:13 /11:33 /12:116
/13:226 /14:421 /15:817 /16:9211 /17:3701 /18:6052
/19:13063 /20:14654 /21:13057 /22:16878 /23:17932 /24:112195
/25:686 /26:480 /27:403 /28:68 /29:40 /30:89
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 921 935 Cable One
9583 869 1040 Sify Limited
2386 830 1107 AT&T Data Communications Serv
7018 804 1496 AT&T WorldNet Services
6197 795 1025 BellSouth Network Solutions,
23577 761 775 Korea Telecom (ATM-MPLS)
7011 680 781 Citizens Utilities
9498 602 943 BHARTI BT INTERNET LTD.
4766 572 764 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 508 1098 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
18101 451 520 Reliance Infocom Ltd Internet
5668 447 576 CenturyTel Internet Holdings,
17488 415 593 Hathway IP Over Cable Interne
1239 405 826 Sprint
33588 403 425 Bresnan Communications, LLC.
6198 391 553 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:64 9:1 12:1650
13:1 15:16 16:3 17:3 18:5 20:36
24:883 25:1 32:53 38:278 40:57 41:69
44:2 47:7 52:4 55:1 56:3 57:25
58:293 59:375 60:203 61:918 62:1028 63:1906
64:3238 65:2310 66:3109 67:717 68:654 69:1712
70:441 71:97 72:1179 73:1 74:153 75:76
77:16 80:837 81:776 82:656 83:353 84:518
85:746 86:467 87:479 88:224 89:795 90:1
91:200 97:1 116:1 117:1 118:1 119:1
120:1 121:133 122:83 123:33 124:576 125:797
128:312 129:219 130:129 131:341 132:49 133:9
134:184 135:45 136:180 137:113 138:196 139:53
140:520 141:141 142:371 143:212 144:270 145:43
146:313 147:144 148:368 149:191 150:115 151:116
152:92 153:119 154:5 155:250 156:128 157:174
158:169 159:147 160:97 161:88 162:228 163:162
164:450 165:326 166:245 167:280 168:496 169:120
170:382 171:15 172:1 189:156 190:387 192:5750
193:3677 194:2947 195:2208 196:939 198:3755 199:3282
200:4604 201:968 202:7178 203:7334 204:3965 205:2088
206:2409 207:2882 208:2447 209:3580 210:2373 211:889
212:1327 213:1415 214:398 215:39 216:4044 217:1159
218:349 219:265 220:858 221:371 222:265
End of report
Report Website: http://thyme.apnic.net
