AS8021: the PCNET network
Monitore os PCs da sua empresa em tempo real, com dados objetivos.
Testar grátis 14 dias →AS8021 is an internet Autonomous System operated by PCNET (the United States). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS8021?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS8021 was assigned to PCNET by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS8021 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in the United States. Services from PCNET are reached through these addresses.
What it means to see AS8021 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS8021. That means the other end sits on the PCNET network (the United States). 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 AS8021?
AS8021 is assigned to PCNET, registered in the United States.
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 AS8021 control?
AS8021 currently announces 256 routed IPv4 addresses.