AS263305: the NET.COM TELECOMUNICACOES EIRELI network

AS263305 is an internet Autonomous System operated by NET.COM TELECOMUNICACOES EIRELI (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS263305?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS263305 was assigned to NET.COM TELECOMUNICACOES EIRELI by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS263305 currently announces 3 IPv4 block(s), totaling about 2 thousand addresses (2,048 in all), registered in Brazil. Services from NET.COM TELECOMUNICACOES EIRELI are reached through these addresses.

What it means to see AS263305 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS263305. That means the other end sits on the NET.COM TELECOMUNICACOES EIRELI network (Brazil). 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.