AS273454: the TELVIA TELECOMUNICACOES LTDA network

AS273454 is an internet Autonomous System operated by TELVIA TELECOMUNICACOES LTDA (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS273454?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS273454 was assigned to TELVIA TELECOMUNICACOES LTDA by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS273454 currently announces 2 IPv4 block(s), totaling 768 addresses (768 in all), registered in Brazil. Services from TELVIA TELECOMUNICACOES LTDA are reached through these addresses.

What it means to see AS273454 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS273454. That means the other end sits on the TELVIA TELECOMUNICACOES LTDA 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.