AS51326: the W3TEL-AS network
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Testar grátis 14 dias →AS51326 is an internet Autonomous System operated by W3TEL-AS (France). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS51326?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS51326 was assigned to W3TEL-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS51326 currently announces 1 IPv4 block(s), totaling about 2 thousand addresses (2,048 in all), registered in France. Services from W3TEL-AS are reached through these addresses.
What it means to see AS51326 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS51326. That means the other end sits on the W3TEL-AS 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 AS51326?
AS51326 is assigned to W3TEL-AS, 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 AS51326 control?
AS51326 currently announces about 2 thousand routed IPv4 addresses.