AS35100: the PATRIKWEB-CORE network

AS35100 is an internet Autonomous System operated by PATRIKWEB-CORE (Sweden). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS35100?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS35100 was assigned to PATRIKWEB-CORE by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS35100 currently announces 10 IPv4 block(s), totaling about 14.3 thousand addresses (14,336 in all), registered in Sweden. Services from PATRIKWEB-CORE are reached through these addresses.

What it means to see AS35100 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS35100. That means the other end sits on the PATRIKWEB-CORE network (Sweden). 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.