AS1942: the FR-TIGRE Toile Informatique GREnobloise network

AS1942 is an internet Autonomous System operated by FR-TIGRE Toile Informatique GREnobloise (EU). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS1942?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS1942 was assigned to FR-TIGRE Toile Informatique GREnobloise by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS1942 currently announces 10 IPv4 block(s), totaling about 396.3 thousand addresses (396,288 in all), registered in EU. Services from FR-TIGRE Toile Informatique GREnobloise are reached through these addresses.

What it means to see AS1942 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS1942. That means the other end sits on the FR-TIGRE Toile Informatique GREnobloise network (EU). 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.