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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 05 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 209939
Prefixes after maximum aggregation: 113106
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102319
Total ASes present in the Internet Routing Table: 24261
Origin-only ASes present in the Internet Routing Table: 21117
Origin ASes announcing only one prefix: 10218
Transit ASes present in the Internet Routing Table: 3144
Transit-only ASes present in the Internet Routing Table: 79
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1672213644
Equivalent to 99 /8s, 171 /16s and 244 /24s
Percentage of available address space announced: 45.1
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107595
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47006
Total APNIC prefixes after maximum aggregation: 18824
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 44308
Unique aggregates announced from the APNIC address blocks: 19409
APNIC Region origin ASes present in the Internet Routing Table: 2832
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 423
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283046624
Equivalent to 16 /8s, 222 /16s and 242 /24s
Percentage of available APNIC address space announced: 70.1
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: 103041
Total ARIN prefixes after maximum aggregation: 60886
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75967
Unique aggregates announced from the ARIN address blocks: 29247
ARIN Region origin ASes present in the Internet Routing Table: 11304
ARIN Region origin ASes announcing only one prefix: 4325
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: 316166272
Equivalent to 18 /8s, 216 /16s and 80 /24s
Percentage of available ARIN address space announced: 69.8
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, 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: 43482
Total RIPE prefixes after maximum aggregation: 28390
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40149
Unique aggregates announced from the RIPE address blocks: 26761
RIPE Region origin ASes present in the Internet Routing Table: 9106
RIPE Region origin ASes announcing only one prefix: 4800
RIPE Region transit ASes present in the Internet Routing Table: 1471
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287812388
Equivalent to 17 /8s, 39 /16s and 171 /24s
Percentage of available RIPE address space announced: 78.0
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: 13863
Total LACNIC prefixes after maximum aggregation: 4047
LACNIC Deaggregation factor: 3.43
Prefixes being announced from the LACNIC address blocks: 11893
Unique aggregates announced from the LACNIC address blocks: 7291
LACNIC Region origin ASes present in the Internet Routing Table: 763
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: 20
Number of LACNIC addresses announced to Internet: 37164032
Equivalent to 2 /8s, 55 /16s and 20 /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: 2544
Total AfriNIC prefixes after maximum aggregation: 957
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1821
Unique aggregates announced from the AfriNIC address blocks: 1148
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: 5384704
Equivalent to 0 /8s, 82 /16s and 42 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1280 8664 277 CHINANET-BACKBONE
4755 1092 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1043 109 16 Sify Limited
9498 943 467 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 571 1698 440 Telstra Pty Ltd
7545 561 126 73 TPG Internet Pty Ltd
18101 515 103 23 Reliance Infocom Ltd Internet
17676 504 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 439 763 70 China Telecom (Shanghai)
7474 373 215 255 SingTel Optus Pty Ltd
17974 363 129 14 PT TELEKOMUNIKASI INDONESIA
4802 359 86 149 Wantree Development
17557 358 34 167 Pakistan Telecom
17849 354 34 94 Telecommunications Technology
4837 336 4151 148 chinanet IDC center beijing n
2907 335 1749 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1545 6129 996 AT&T WorldNet Services
2386 1107 569 732 AT&T Data Communications Serv
4323 1055 819 298 Time Warner Telecom
6197 1024 650 503 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
701 937 6695 745 UUNET Technologies, Inc.
174 936 6790 866 Cogent Communications
11492 919 100 14 Cable One
1239 827 2730 578 Sprint
19262 809 2592 180 Verizon Global Networks
20115 797 695 414 Charter Communications
7011 761 224 466 Citizens Utilities
22773 724 1872 41 Cox Communications, Inc.
209 717 3742 565 Qwest
721 684 21836 280 DLA Systems Automation Center
852 603 1091 391 Telus Advanced Communications
5668 580 161 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
24863 307 45 25 LINKdotNET AS number
3301 306 1199 288 TeliaNet Sweden
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 235 283 221 Romania Data Systems S.A.
1257 222 1100 171 SWIPnet Swedish IP Network
30890 215 19 92 SC Kappa Invexim SRL
3269 213 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
5416 205 13 13 BATELCO-BH
8551 200 193 29 Bezeq International
20858 197 34 3 This AS will be used to conne
3352 192 1767 31 Ibernet, Internet Access Netw
3300 180 171 90 AUCS Communications Services
12479 177 578 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 203 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 151 10 34 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 38 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
33776 27 2 5 Starcomms Nigeria Limited
12455 26 6 3 Jambonet Autonomous system
21280 26 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1043 1027 Sify Limited
4755 1092 1016 Videsh Sanchar Nigam Ltd. Aut
4134 1280 1003 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 919 905 Cable One
9498 943 878 BHARTI BT INTERNET LTD.
8151 980 777 UniNet S.A. de C.V.
4323 1055 757 Time Warner Telecom
22773 724 683 Cox Communications, Inc.
19262 809 629 Verizon Global Networks
17488 592 571 Hathway IP Over Cable Interne
5668 580 563 CenturyTel Internet Holdings,
6197 1024 521 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 515 492 Reliance Infocom Ltd Internet
855 561 488 Canadian Research Network
7545 561 488 TPG Internet Pty Ltd
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 /14:418 /15:813 /16:9206 /17:3692 /18:6027
/19:13034 /20:14628 /21:13043 /22:16735 /23:17968 /24:112169
/25:684 /26:478 /27:397 /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 905 919 Cable One
9583 871 1043 Sify Limited
7018 850 1545 AT&T WorldNet Services
2386 830 1107 AT&T Data Communications Serv
6197 794 1024 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 662 761 Citizens Utilities
9498 600 943 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 503 1092 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
5668 448 580 CenturyTel Internet Holdings,
18101 446 515 Reliance Infocom Ltd Internet
17488 415 592 Hathway IP Over Cable Interne
1239 406 827 Sprint
33588 403 425 Bresnan Communications, LLC.
6517 393 419 Yipes Communications, Inc.
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
24:875 25:1 32:53 38:278 40:57 41:67
44:2 47:7 52:4 55:1 56:3 57:25
58:302 59:376 60:203 61:919 62:1025 63:1905
64:3229 65:2311 66:3117 67:713 68:644 69:1710
70:441 71:129 72:1182 73:1 74:164 75:67
76:22 77:7 80:830 81:788 82:654 83:350
84:509 85:737 86:467 87:479 88:216 89:789
90:1 91:199 97:1 116:1 117:1 118:1
119:1 120:1 121:129 122:76 123:32 124:533
125:801 128:312 129:219 130:126 131:342 132:49
133:9 134:184 135:44 136:180 137:113 138:191
139:53 140:522 141:142 142:371 143:212 144:269
145:67 146:305 147:140 148:367 149:190 150:115
151:116 152:90 153:119 154:5 155:250 156:129
157:174 158:168 159:148 160:97 161:85 162:228
163:161 164:450 165:330 166:247 167:280 168:495
169:120 170:383 171:15 172:1 189:156 190:362
192:5745 193:3672 194:2941 195:2206 196:940 198:3772
199:3283 200:4610 201:964 202:7184 203:7320 204:3968
205:2109 206:2415 207:2886 208:2453 209:3595 210:2369
211:889 212:1314 213:1431 214:397 215:39 216:4062
217:1169 218:347 219:264 220:833 221:370 222:264
End of report
Report Website: http://thyme.apnic.net
