AS9875: the PESAT1-AS-AP PT. Pasifik Satelit Nusantara network

AS9875 is an internet Autonomous System operated by PESAT1-AS-AP PT. Pasifik Satelit Nusantara (Indonesia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS9875?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS9875 was assigned to PESAT1-AS-AP PT. Pasifik Satelit Nusantara by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS9875 currently announces 14 IPv4 block(s), totaling about 27.9 thousand addresses (27,904 in all), registered in Indonesia. Services from PESAT1-AS-AP PT. Pasifik Satelit Nusantara are reached through these addresses.

What it means to see AS9875 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS9875. That means the other end sits on the PESAT1-AS-AP PT. Pasifik Satelit Nusantara 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.