AS213607: the WORLD-FIRST-COMMUNICATION-LTD network

AS213607 is an internet Autonomous System operated by WORLD-FIRST-COMMUNICATION-LTD (the United Kingdom). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS213607?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS213607 was assigned to WORLD-FIRST-COMMUNICATION-LTD by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS213607 currently announces 70 IPv4 block(s), totaling about 28.9 thousand addresses (28,928 in all), registered in the United Kingdom. Services from WORLD-FIRST-COMMUNICATION-LTD are reached through these addresses.

What it means to see AS213607 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS213607. That means the other end sits on the WORLD-FIRST-COMMUNICATION-LTD network (the United Kingdom). 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.