AS263073: the DTEL TELECOM network

AS263073 is an internet Autonomous System operated by DTEL TELECOM (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS263073?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS263073 was assigned to DTEL TELECOM by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS263073 currently announces 21 IPv4 block(s), totaling about 25.9 thousand addresses (25,856 in all), registered in Brazil. Services from DTEL TELECOM are reached through these addresses.

What it means to see AS263073 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS263073. That means the other end sits on the DTEL TELECOM 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.