AS12371: the AVENCY Kiebitzpohl 77 network

AS12371 is an internet Autonomous System operated by AVENCY Kiebitzpohl 77 (Germany). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS12371?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS12371 was assigned to AVENCY Kiebitzpohl 77 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS12371 currently announces 3 IPv4 block(s), totaling about 24.3 thousand addresses (24,320 in all), registered in Germany. Services from AVENCY Kiebitzpohl 77 are reached through these addresses.

What it means to see AS12371 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS12371. That means the other end sits on the AVENCY Kiebitzpohl 77 network (Germany). 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.