AS3191: the CENTRINFORM-AS network
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Testar grátis 14 dias →AS3191 is an internet Autonomous System operated by CENTRINFORM-AS (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS3191?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS3191 was assigned to CENTRINFORM-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS3191 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Russia. Services from CENTRINFORM-AS are reached through these addresses.
What it means to see AS3191 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS3191. That means the other end sits on the CENTRINFORM-AS network (Russia). 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 AS3191?
AS3191 is assigned to CENTRINFORM-AS, registered in Russia.
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 AS3191 control?
AS3191 currently announces 256 routed IPv4 addresses.