AS13845: the ESTRUXTURE-AB-13845 network

AS13845 is an internet Autonomous System operated by ESTRUXTURE-AB-13845 (Canada). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS13845?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS13845 was assigned to ESTRUXTURE-AB-13845 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS13845 currently announces 10 IPv4 block(s), totaling about 6.7 thousand addresses (6,656 in all), registered in Canada. Services from ESTRUXTURE-AB-13845 are reached through these addresses.

What it means to see AS13845 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS13845. That means the other end sits on the ESTRUXTURE-AB-13845 network (Canada). 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.