AS42539: the STYRION network
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Testar grátis 14 dias →AS42539 is an internet Autonomous System operated by STYRION (Austria). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS42539?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS42539 was assigned to STYRION by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS42539 currently announces 1 IPv4 block(s), totaling about 3.8 thousand addresses (3,840 in all), registered in Austria. Services from STYRION are reached through these addresses.
What it means to see AS42539 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS42539. That means the other end sits on the STYRION network (Austria). 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 AS42539?
AS42539 is assigned to STYRION, registered in Austria.
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 AS42539 control?
AS42539 currently announces about 3.8 thousand routed IPv4 addresses.