AS9831: the UNIGATE-AS-AP AS NO. FOR UNIGATE TELECOM INC. network

AS9831 is an internet Autonomous System operated by UNIGATE-AS-AP AS NO. FOR UNIGATE TELECOM INC. (Taiwan). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS9831?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS9831 was assigned to UNIGATE-AS-AP AS NO. FOR UNIGATE TELECOM INC. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS9831 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Taiwan. Services from UNIGATE-AS-AP AS NO. FOR UNIGATE TELECOM INC. are reached through these addresses.

What it means to see AS9831 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS9831. That means the other end sits on the UNIGATE-AS-AP AS NO. FOR UNIGATE TELECOM INC. network (Taiwan). It can be legitimate — a cloud service, an ISP, a CDN — or an unexpected connection worth checking.

How to see every connection and network your devices reach

Tracing one connection's ASN at a time is tedious. Sentinela, by PC Monitor, maps the devices on your network, shows what is exposed to the internet and helps flag suspicious connections and devices — running on your Windows. Meet Sentinela.