AS28403: the RadioMovil Dipsa, S.A. de C.V. network

AS28403 is an internet Autonomous System operated by RadioMovil Dipsa, S.A. de C.V. (Mexico). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS28403?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS28403 was assigned to RadioMovil Dipsa, S.A. de C.V. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS28403 currently announces 10 IPv4 block(s), totaling about 16.4 thousand addresses (16,384 in all), registered in Mexico. Services from RadioMovil Dipsa, S.A. de C.V. are reached through these addresses.

What it means to see AS28403 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS28403. That means the other end sits on the RadioMovil Dipsa, S.A. de C.V. network (Mexico). 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.