AS10143: the EXETEL-AS-AP Exetel Pty Ltd network

AS10143 is an internet Autonomous System operated by EXETEL-AS-AP Exetel Pty Ltd (Australia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS10143?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS10143 was assigned to EXETEL-AS-AP Exetel Pty Ltd by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS10143 currently announces 37 IPv4 block(s), totaling about 152.8 thousand addresses (152,832 in all), registered in Australia. Services from EXETEL-AS-AP Exetel Pty Ltd are reached through these addresses.

What it means to see AS10143 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS10143. That means the other end sits on the EXETEL-AS-AP Exetel Pty Ltd 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.