AS28128: the Infolic Comercial de Informatica Ltda. network

AS28128 is an internet Autonomous System operated by Infolic Comercial de Informatica Ltda. (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS28128?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS28128 was assigned to Infolic Comercial de Informatica Ltda. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS28128 currently announces 3 IPv4 block(s), totaling about 5.1 thousand addresses (5,120 in all), registered in Brazil. Services from Infolic Comercial de Informatica Ltda. are reached through these addresses.

What it means to see AS28128 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS28128. That means the other end sits on the Infolic Comercial de Informatica 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.