AS203661: the NETNITE network
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Testar grátis 14 dias →AS203661 is an internet Autonomous System operated by NETNITE (Poland). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS203661?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS203661 was assigned to NETNITE by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS203661 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Poland. Services from NETNITE are reached through these addresses.
What it means to see AS203661 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS203661. That means the other end sits on the NETNITE network (Poland). 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 AS203661?
AS203661 is assigned to NETNITE, registered in Poland.
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 AS203661 control?
AS203661 currently announces 256 routed IPv4 addresses.