AS2108: the CARNET-AS J.Marohnica 5, 10000 Zagreb network

AS2108 is an internet Autonomous System operated by CARNET-AS J.Marohnica 5, 10000 Zagreb (Croatia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS2108?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS2108 was assigned to CARNET-AS J.Marohnica 5, 10000 Zagreb by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS2108 currently announces 6 IPv4 block(s), totaling about 230.1 thousand addresses (230,144 in all), registered in Croatia. Services from CARNET-AS J.Marohnica 5, 10000 Zagreb are reached through these addresses.

What it means to see AS2108 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS2108. That means the other end sits on the CARNET-AS J.Marohnica 5, 10000 Zagreb network (Croatia). 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.