AS15321: the GROUPE-MASKATEL-LP network

AS15321 is an internet Autonomous System operated by GROUPE-MASKATEL-LP (Canada). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS15321?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15321 was assigned to GROUPE-MASKATEL-LP by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS15321 currently announces 42 IPv4 block(s), totaling about 48.9 thousand addresses (48,896 in all), registered in Canada. Services from GROUPE-MASKATEL-LP are reached through these addresses.

What it means to see AS15321 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15321. That means the other end sits on the GROUPE-MASKATEL-LP 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.