Autonomous System

AS17957 SOUTH TOKYO CABLE TELEVISION

ISPActiveJapanAPNIC

AS17957 (CTS) is an ISP network operated by SOUTH TOKYO CABLE TELEVISION in Japan, registered with APNIC. It has 6 IPv4 prefixes with 19,456 addresses, which makes it the 6,980th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses19,456in 6 prefixes
IPv6 prefixes0none
Size rank#6,980of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationSOUTH TOKYO CABLE TELEVISION
AS nameCTS
Websitects.ne.jp
Country Japan (JP)
Network typeISP
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-08-23

IPv4 prefixes

6 prefixes · 19,456 addresses
NetworkAddressesFirst – last address
210.191.128.0/198,192210.191.128.0 – 210.191.159.255
219.103.96.0/204,096219.103.96.0 – 219.103.111.255
49.236.232.0/212,04849.236.232.0 – 49.236.239.255
115.165.184.0/212,048115.165.184.0 – 115.165.191.255
202.122.24.0/212,048202.122.24.0 – 202.122.31.255
110.232.236.0/221,024110.232.236.0 – 110.232.239.255

IPv6 prefixes

No IPv6 prefixes.

Query AS17957 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS17957&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS17957, with or without a key:

curl "https://api.ipapi.is/?q=210.191.128.1"

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