AS33990: the PROKOM-AS network
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Testar grátis 14 dias →AS33990 is an internet Autonomous System operated by PROKOM-AS (Poland). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS33990?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS33990 was assigned to PROKOM-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS33990 currently announces 2 IPv4 block(s), totaling about 1.3 thousand addresses (1,280 in all), registered in Poland. Services from PROKOM-AS are reached through these addresses.
What it means to see AS33990 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS33990. That means the other end sits on the PROKOM-AS 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 AS33990?
AS33990 is assigned to PROKOM-AS, 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 AS33990 control?
AS33990 currently announces about 1.3 thousand routed IPv4 addresses.