AS205366: the DRESO_DE-FFM_RZ1 network
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Testar grátis 14 dias →AS205366 is an internet Autonomous System operated by DRESO_DE-FFM_RZ1 (Germany). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS205366?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS205366 was assigned to DRESO_DE-FFM_RZ1 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS205366 currently announces 1 IPv4 block(s), totaling 512 addresses (512 in all), registered in Germany. Services from DRESO_DE-FFM_RZ1 are reached through these addresses.
What it means to see AS205366 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS205366. That means the other end sits on the DRESO_DE-FFM_RZ1 network (Germany). 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 AS205366?
AS205366 is assigned to DRESO_DE-FFM_RZ1, registered in Germany.
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 AS205366 control?
AS205366 currently announces 512 routed IPv4 addresses.