AS41863: the JEROME-DESCOUX network

Equipe PC Monitor · Atualizado em 19/09/2026

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AS41863 is an internet Autonomous System operated by JEROME-DESCOUX (France). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS41863?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS41863 was assigned to JEROME-DESCOUX by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS41863 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in France. Services from JEROME-DESCOUX are reached through these addresses.

What it means to see AS41863 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS41863. That means the other end sits on the JEROME-DESCOUX 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.

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Perguntas frequentes

Who owns AS41863?

AS41863 is assigned to JEROME-DESCOUX, registered in France.

What is an ASN (Autonomous System)?

It is a unique number identifying a network with its own routing policy on the internet. RIRs (regional registries) assign these numbers to carriers, ISPs and companies.

How many IP addresses does AS41863 control?

AS41863 currently announces 256 routed IPv4 addresses.

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