AS2764: the AAPT AAPT Limited network

AS2764 is an internet Autonomous System operated by AAPT AAPT Limited (Australia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS2764?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS2764 was assigned to AAPT AAPT Limited by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS2764 currently announces 1,077 IPv4 block(s), totaling about 1.1 million addresses (1,051,392 in all), registered in Australia. Services from AAPT AAPT Limited are reached through these addresses.

What it means to see AS2764 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS2764. That means the other end sits on the AAPT AAPT Limited network (Australia). 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.