AS12887: the NETIA-AS2 network
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Testar grátis 14 dias →AS12887 is an internet Autonomous System operated by NETIA-AS2 (Poland). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS12887?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS12887 was assigned to NETIA-AS2 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS12887 currently announces 26 IPv4 block(s), totaling about 19.7 thousand addresses (19,712 in all), registered in Poland. Services from NETIA-AS2 are reached through these addresses.
What it means to see AS12887 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS12887. That means the other end sits on the NETIA-AS2 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 AS12887?
AS12887 is assigned to NETIA-AS2, 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 AS12887 control?
AS12887 currently announces about 19.7 thousand routed IPv4 addresses.