AS36874: the Cybersmart network

AS36874 is an internet Autonomous System operated by Cybersmart (South Africa). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS36874?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS36874 was assigned to Cybersmart by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS36874 currently announces 5 IPv4 block(s), totaling about 143.4 thousand addresses (143,360 in all), registered in South Africa. Services from Cybersmart are reached through these addresses.

What it means to see AS36874 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS36874. That means the other end sits on the Cybersmart network (South Africa). 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.