AS12: the NYU-DOMAIN network
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Testar grátis 14 dias →AS12 is an internet Autonomous System operated by NYU-DOMAIN (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 AS12?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS12 was assigned to NYU-DOMAIN by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS12 currently announces 6 IPv4 block(s), totaling about 163.1 thousand addresses (163,072 in all), registered in the United States. Services from NYU-DOMAIN are reached through these addresses.
What it means to see AS12 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS12. That means the other end sits on the NYU-DOMAIN 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.
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Perguntas frequentes
Who owns AS12?
AS12 is assigned to NYU-DOMAIN, 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 AS12 control?
AS12 currently announces about 163.1 thousand routed IPv4 addresses.