AS57161: the FTSOC network
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Testar grátis 14 dias →AS57161 is an internet Autonomous System operated by FTSOC (the United Kingdom). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS57161?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS57161 was assigned to FTSOC by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS57161 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in the United Kingdom. Services from FTSOC are reached through these addresses.
What it means to see AS57161 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS57161. That means the other end sits on the FTSOC network (the United Kingdom). 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 AS57161?
AS57161 is assigned to FTSOC, registered in the United Kingdom.
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 AS57161 control?
AS57161 currently announces 256 routed IPv4 addresses.