AS1712: the FR-RENATER-ENST Ecole Nationale Superieure des Telecommunications network

AS1712 is an internet Autonomous System operated by FR-RENATER-ENST Ecole Nationale Superieure des Telecommunications (France). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS1712?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS1712 was assigned to FR-RENATER-ENST Ecole Nationale Superieure des Telecommunications by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS1712 currently announces 7 IPv4 block(s), totaling about 64.5 thousand addresses (64,512 in all), registered in France. Services from FR-RENATER-ENST Ecole Nationale Superieure des Telecommunications are reached through these addresses.

What it means to see AS1712 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS1712. That means the other end sits on the FR-RENATER-ENST Ecole Nationale Superieure des Telecommunications network (France). 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.