AS43927: the HOSTERION network
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Testar grátis 14 dias →AS43927 is an internet Autonomous System operated by HOSTERION (Romania). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS43927?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS43927 was assigned to HOSTERION by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS43927 currently announces 13 IPv4 block(s), totaling about 12.3 thousand addresses (12,288 in all), registered in Romania. Services from HOSTERION are reached through these addresses.
What it means to see AS43927 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS43927. That means the other end sits on the HOSTERION network (Romania). 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 AS43927?
AS43927 is assigned to HOSTERION, registered in Romania.
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 AS43927 control?
AS43927 currently announces about 12.3 thousand routed IPv4 addresses.