AS15401: the EOLAS-AS network
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Testar grátis 14 dias →AS15401 is an internet Autonomous System operated by EOLAS-AS (France). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS15401?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15401 was assigned to EOLAS-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS15401 currently announces 7 IPv4 block(s), totaling about 9 thousand addresses (8,960 in all), registered in France. Services from EOLAS-AS are reached through these addresses.
What it means to see AS15401 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15401. That means the other end sits on the EOLAS-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 AS15401?
AS15401 is assigned to EOLAS-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 AS15401 control?
AS15401 currently announces about 9 thousand routed IPv4 addresses.