AS265540: the ALTAN REDES, S.A.P.I. de C. V. network

AS265540 is an internet Autonomous System operated by ALTAN REDES, S.A.P.I. 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 AS265540?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS265540 was assigned to ALTAN REDES, S.A.P.I. 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

AS265540 currently announces 7 IPv4 block(s), totaling about 15.4 thousand addresses (15,360 in all), registered in Mexico. Services from ALTAN REDES, S.A.P.I. de C. V. are reached through these addresses.

What it means to see AS265540 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS265540. That means the other end sits on the ALTAN REDES, S.A.P.I. 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.