AS52154: the ASMJANIK network
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Testar grátis 14 dias →AS52154 is an internet Autonomous System operated by ASMJANIK (Czechia). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS52154?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS52154 was assigned to ASMJANIK by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS52154 currently announces 1 IPv4 block(s), totaling about 2 thousand addresses (2,048 in all), registered in Czechia. Services from ASMJANIK are reached through these addresses.
What it means to see AS52154 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS52154. That means the other end sits on the ASMJANIK network (Czechia). 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 AS52154?
AS52154 is assigned to ASMJANIK, registered in Czechia.
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 AS52154 control?
AS52154 currently announces about 2 thousand routed IPv4 addresses.