AS57717: the FBX-AS network
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Testar grátis 14 dias →AS57717 is an internet Autonomous System operated by FBX-AS (the Netherlands). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS57717?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS57717 was assigned to FBX-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS57717 currently announces 9 IPv4 block(s), totaling about 2.6 thousand addresses (2,560 in all), registered in the Netherlands. Services from FBX-AS are reached through these addresses.
What it means to see AS57717 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS57717. That means the other end sits on the FBX-AS network (the Netherlands). 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 AS57717?
AS57717 is assigned to FBX-AS, registered in the Netherlands.
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 AS57717 control?
AS57717 currently announces about 2.6 thousand routed IPv4 addresses.