AS51213: the KATREN-AS network
Monitore os PCs da sua empresa em tempo real, com dados objetivos.
Testar grátis 14 dias →AS51213 is an internet Autonomous System operated by KATREN-AS (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS51213?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS51213 was assigned to KATREN-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS51213 currently announces 2 IPv4 block(s), totaling 512 addresses (512 in all), registered in Russia. Services from KATREN-AS are reached through these addresses.
What it means to see AS51213 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS51213. That means the other end sits on the KATREN-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.
Prefere falar com a gente antes de instalar?
Deixe seus dados e um especialista mostra, no seu contexto, como o PC Monitor ajuda a resolver isso na sua empresa. Sem compromisso.
Perguntas frequentes
Who owns AS51213?
AS51213 is assigned to KATREN-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 AS51213 control?
AS51213 currently announces 512 routed IPv4 addresses.