AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
BTV BTV Cable Television CO.,LTD. 30 1 38,912 4,294,967,296 Japan
38,912 IPv4 Addresses
CIDR Description IP Num
42.83.0.0/20 BTV BTV CO., LTD. 4096
42.83.0.0/19 BTV BTV CO., LTD. 8192
42.83.16.0/20 BTV BTV CO., LTD. 4096
42.83.24.0/21 BTV BTV CO., LTD. 2048
42.83.32.0/21 BTV BTV CO., LTD. 2048
42.83.32.0/20 BTV BTV CO., LTD. 4096
42.83.40.0/21 BTV BTV CO., LTD. 2048
42.83.48.0/21 BTV BTV CO., LTD. 2048
42.83.48.0/20 BTV BTV CO., LTD. 4096
42.83.56.0/22 BTV BTV CO., LTD. 1024
103.205.48.0/22 BTV BTV CO., LTD. 1024
153.124.224.0/21 BTV BTV CO., LTD. 2048
163.131.104.0/22 JAPAN163 country: JP Japan Network Information Center 1024
163.131.108.0/22 JAPAN163 country: JP Japan Network Information Center 1024
182.23.216.0/21 BTV BTV CO., LTD. 2048
203.211.32.0/20 BTV BTV CO., LTD. 4096
203.211.40.0/21 BTV BTV CO., LTD. 2048
203.211.43.0/24 BTV BTV CO., LTD. 256
203.211.44.0/24 BTV BTV CO., LTD. 256
203.211.45.0/24 BTV BTV CO., LTD. 256
203.211.46.0/24 BTV BTV CO., LTD. 256
203.211.47.0/24 BTV BTV CO., LTD. 256
203.211.48.0/23 BTV BTV CO., LTD. 512
203.211.48.0/21 BTV BTV CO., LTD. 2048
203.211.50.0/23 BTV BTV CO., LTD. 512
203.211.52.0/23 BTV BTV CO., LTD. 512
203.211.54.0/23 BTV BTV CO., LTD. 512
219.100.88.0/22 JPNIC-NET-JP Japan Network Information Center 1024
219.103.0.0/19 JPNIC-NET-JP Japan Network Information Center 8192
219.103.16.0/20 JPNIC-NET-JP Japan Network Information Center 4096
CIDR Description IP NUMs(prefix /64)
2401:d500::/32 BTV-JPNIC-JP-20110826 Japan Network Information Center 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS6233 XTOM, US United States 5,376 917,504 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 527,360 282,708,169,719,808 IPv4 IPv4
AS35280 ACORUS - ACORUS NETWORKS SAS, FR France 8,192 141,733,920,768 IPv4 IPv4
AS64050 BCPL-SG - BGP Consultancy Pte Ltd, SG Singapore 224,512 0 IPv4 IPv4
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3,802,368 17,716,740,096 IPv4 IPv4
AS2516 KDDI - KDDI CORPORATION, JP Japan 18,445,312 2,757,369,135,104 IPv4 IPv4
AS36236 NETACTUATE - NetActuate, Inc, US United States 98,816 5,933,432,832 IPv4 IPv4
AS4713 OCN - NTT Communications Corporation, JP Japan 29,009,664 4,406,636,511,232 IPv4 IPv4 IPv6 IPv6
AS9009 M247 - M247 Ltd, GB United Kingdom 949,760 236,586,663,936 IPv4 IPv4
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 22,848 4,294,967,296 IPv4 IPv4
AS1239 SPRINTLINK - Sprint, US United States 17,142,272 60,129,542,144 IPv4 IPv4
AS2519 VECTANT - ARTERIA Networks Corporation, JP Japan 1,697,792 103,079,215,104 IPv4 IPv4
AS8220 COLT - COLT Technology Services Group Limited, GB United Kingdom 1,137,920 21,475,229,696 IPv4 IPv4
AS38001 NEWMEDIAEXPRESS-AS-AP - NewMedia Express Pte Ltd, SG Singapore 26,112 4,295,294,976 IPv4 IPv4
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS45687 MCT-Internet - Minamikyusyu CableTV Net Inc., JP Japan 6,656 4,294,967,296 IPv4 IPv4

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Japan JPIX OSAKA - Japan Internet Exchange Osaka 103.246.232.154 20 Gbps 2019-08-01 05:34:04
Japan JPIX TOKYO - Japan Internet Exchange Tokyo 210.171.224.154 10 Gbps 2016-05-30 02:03:38
Japan BBIX Tokyo - BroadBand Internet eXchange Tokyo 218.100.6.103 10 Gbps 2018-11-15 12:47:34

Private Peering Facilities

Country/Region Name City Website Updated
ComSpace I Tokyo https://www.arteria-net.com/en/business/service/datacenter/ 2016-03-14 21:27:52
NTT DATA Dojima (building #4) Osaka http://www.nttdata.com/ 2018-01-10 00:43:08
IP Address Domain NUMs Domains
203.211.48.52 1 www.estimerdieu.us
203.211.48.132 1 dns02.btvm.ne.jp
as-block:       AS17653 - AS18431
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2019-01-08T23:19:07Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC


as-block:       AS18121 - AS18152
descr:          JPNIC-2Byte-ASBLOCK-AP
descr:          for assignment to JPNIC members
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Authoritative information regarding AS Number
remarks:        assignments made from within this block can be
remarks:        queried at whois.nic.ad.jp.
remarks:        To only display English output,
remarks:        add '/e' at the end of command,
remarks:        e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
last-modified:  2017-06-12T03:54:32Z
source:         APNIC

role:           Japan Network Information Center
address:        Urbannet-Kanda Bldg 4F
address:        3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047,Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         [email protected]
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2012-08-28T07:58:02Z
source:         APNIC


aut-num:        AS18135
as-name:        BTV
descr:          BTV Cable Television CO.,LTD.
import:
export:
country:        JP
admin-c:        TE7166JP
tech-c:         TI11581JP
last-modified:  2015-11-24T20:32:21Z
source:         JPNIC