AS56937: the ISDD-AS network
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Testar grátis 14 dias →AS56937 is an internet Autonomous System operated by ISDD-AS (Slovakia). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS56937?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS56937 was assigned to ISDD-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS56937 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Slovakia. Services from ISDD-AS are reached through these addresses.
What it means to see AS56937 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS56937. That means the other end sits on the ISDD-AS network (Slovakia). 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 AS56937?
AS56937 is assigned to ISDD-AS, registered in Slovakia.
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 AS56937 control?
AS56937 currently announces 256 routed IPv4 addresses.