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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210060
Prefixes after maximum aggregation: 113155
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102475
Total ASes present in the Internet Routing Table: 24272
Origin-only ASes present in the Internet Routing Table: 21142
Origin ASes announcing only one prefix: 10217
Transit ASes present in the Internet Routing Table: 3130
Transit-only ASes present in the Internet Routing Table: 77
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: 12
Number of addresses announced to Internet: 1673442444
Equivalent to 99 /8s, 190 /16s and 180 /24s
Percentage of available address space announced: 45.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107746
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47163
Total APNIC prefixes after maximum aggregation: 18846
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 44468
Unique aggregates announced from the APNIC address blocks: 19533
APNIC Region origin ASes present in the Internet Routing Table: 2826
APNIC Region origin ASes announcing only one prefix: 783
APNIC Region transit ASes present in the Internet Routing Table: 420
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 283452128
Equivalent to 16 /8s, 229 /16s and 34 /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: 102962
Total ARIN prefixes after maximum aggregation: 60868
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75866
Unique aggregates announced from the ARIN address blocks: 29237
ARIN Region origin ASes present in the Internet Routing Table: 11311
ARIN Region origin ASes announcing only one prefix: 4324
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 316534144
Equivalent to 18 /8s, 221 /16s and 237 /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: 43514
Total RIPE prefixes after maximum aggregation: 28438
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40232
Unique aggregates announced from the RIPE address blocks: 26813
RIPE Region origin ASes present in the Internet Routing Table: 9120
RIPE Region origin ASes announcing only one prefix: 4804
RIPE Region transit ASes present in the Internet Routing Table: 1459
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 288335140
Equivalent to 17 /8s, 47 /16s and 165 /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
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: 13869
Total LACNIC prefixes after maximum aggregation: 4044
LACNIC Deaggregation factor: 3.43
Prefixes being announced from the LACNIC address blocks: 11918
Unique aggregates announced from the LACNIC address blocks: 7277
LACNIC Region origin ASes present in the Internet Routing Table: 761
LACNIC Region origin ASes announcing only one prefix: 251
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: 24
Number of LACNIC addresses announced to Internet: 37229312
Equivalent to 2 /8s, 56 /16s and 19 /24s
Percentage of available LACNIC address space announced: 55.5
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: 2549
Total AfriNIC prefixes after maximum aggregation: 957
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1831
Unique aggregates announced from the AfriNIC address blocks: 1153
AfriNIC Region origin ASes present in the Internet Routing Table: 176
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: 5393152
Equivalent to 0 /8s, 82 /16s and 75 /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 1283 8704 280 CHINANET-BACKBONE
4755 1099 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1041 109 16 Sify Limited
9498 944 467 65 BHARTI BT INTERNET LTD.
23577 776 35 703 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 592 37 21 Hathway IP Over Cable Interne
1221 572 1698 441 Telstra Pty Ltd
7545 563 126 74 TPG Internet Pty Ltd
18101 518 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
9443 441 111 73 Primus Telecommunications
4812 439 763 70 China Telecom (Shanghai)
7474 376 215 253 SingTel Optus Pty Ltd
4802 359 86 149 Wantree Development
17557 358 34 167 Pakistan Telecom
17974 355 129 14 PT TELEKOMUNIKASI INDONESIA
17849 354 34 94 Telecommunications Technology
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 1534 6128 992 AT&T WorldNet Services
2386 1106 570 732 AT&T Data Communications Serv
4323 1060 821 302 Time Warner Telecom
6197 1025 650 503 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
174 936 6790 866 Cogent Communications
701 935 6695 745 UUNET Technologies, Inc.
11492 933 100 14 Cable One
1239 822 2729 573 Sprint
20115 798 697 414 Charter Communications
7011 777 226 469 Citizens Utilities
19262 758 2591 179 Verizon Global Networks
22773 724 1872 41 Cox Communications, Inc.
209 716 3742 562 Qwest
721 679 21836 281 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
702 544 1897 422 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 268 95 247 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 222 1100 171 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 980 2110 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 238 16 13 Telefonica del Sur S.A.
7303 235 105 35 Telecom Argentina Stet-France
11556 235 116 6 Cable-Wireless Panama
6147 227 182 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 150 25 55 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 142 9 24 Telconet
19429 139 84 34 E.T.B.
14522 137 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 237 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 26 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1041 1025 Sify Limited
4755 1099 1024 Videsh Sanchar Nigam Ltd. Aut
4134 1283 1003 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 933 919 Cable One
9498 944 879 BHARTI BT INTERNET LTD.
8151 980 775 UniNet S.A. de C.V.
4323 1060 758 Time Warner Telecom
22773 724 683 Cox Communications, Inc.
19262 758 579 Verizon Global Networks
17488 592 571 Hathway IP Over Cable Interne
5668 576 559 CenturyTel Internet Holdings,
6197 1025 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 518 495 Reliance Infocom Ltd Internet
7545 563 489 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 763 450 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
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 /14:419 /15:818 /16:9208 /17:3699 /18:6041
/19:13042 /20:14657 /21:13042 /22:16877 /23:17919 /24:112123
/25:686 /26:479 /27:404 /28:68 /29:40 /30:88
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 919 933 Cable One
9583 871 1041 Sify Limited
7018 840 1534 AT&T WorldNet Services
2386 830 1106 AT&T Data Communications Serv
6197 795 1025 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 676 777 Citizens Utilities
9498 602 944 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 509 1099 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
18101 449 518 Reliance Infocom Ltd Internet
5668 447 576 CenturyTel Internet Holdings,
17488 415 592 Hathway IP Over Cable Interne
33588 403 425 Bresnan Communications, LLC.
1239 402 822 Sprint
6198 391 553 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:64 9:1 12:1651
13:1 15:16 16:3 17:3 18:5 20:36
24:882 25:1 32:53 38:279 40:57 41:70
44:2 47:7 52:4 55:1 56:3 57:25
58:303 59:375 60:203 61:919 62:1028 63:1907
64:3235 65:2311 66:3116 67:714 68:644 69:1711
70:444 71:97 72:1173 73:1 74:153 75:71
76:14 77:7 80:837 81:784 82:658 83:353
84:510 85:740 86:466 87:480 88:222 89:791
90:1 91:201 97:1 116:1 117:1 118:1
119:1 120:1 121:132 122:83 123:32 124:563
125:801 128:314 129:219 130:126 131:342 132:49
133:9 134:184 135:44 136:180 137:113 138:191
139:53 140:520 141:141 142:371 143:212 144:270
145:43 146:312 147:144 148:367 149:190 150:115
151:116 152:92 153:119 154:5 155:250 156:129
157:174 158:169 159:149 160:97 161:84 162:228
163:162 164:450 165:331 166:245 167:280 168:495
169:119 170:384 171:15 172:1 189:156 190:368
192:5748 193:3675 194:2943 195:2207 196:941 198:3744
199:3283 200:4611 201:968 202:7147 203:7327 204:3960
205:2098 206:2408 207:2881 208:2452 209:3586 210:2368
211:890 212:1311 213:1436 214:400 215:39 216:4063
217:1156 218:349 219:265 220:846 221:369 222:264
End of report
Report Website: http://thyme.apnic.net
