AS139952: the TRIDATA-AS-ID PT Trisari Data Indonusa network

AS139952 is an internet Autonomous System operated by TRIDATA-AS-ID PT Trisari Data Indonusa (Indonesia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS139952?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS139952 was assigned to TRIDATA-AS-ID PT Trisari Data Indonusa by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS139952 currently announces 12 IPv4 block(s), totaling about 5.6 thousand addresses (5,632 in all), registered in Indonesia. Services from TRIDATA-AS-ID PT Trisari Data Indonusa are reached through these addresses.

What it means to see AS139952 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS139952. That means the other end sits on the TRIDATA-AS-ID PT Trisari Data Indonusa network (Indonesia). 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.