AS53075: the Holistica Provedor Internet Ltda network

AS53075 is an internet Autonomous System operated by Holistica Provedor Internet Ltda (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS53075?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS53075 was assigned to Holistica Provedor Internet Ltda by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS53075 currently announces 5 IPv4 block(s), totaling about 16.4 thousand addresses (16,384 in all), registered in Brazil. Services from Holistica Provedor Internet Ltda are reached through these addresses.

What it means to see AS53075 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS53075. That means the other end sits on the Holistica Provedor Internet 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.