AS393371: the MB1640-1 network
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Testar grátis 14 dias →AS393371 is an internet Autonomous System operated by MB1640-1 (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 AS393371?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS393371 was assigned to MB1640-1 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS393371 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in the United States. Services from MB1640-1 are reached through these addresses.
What it means to see AS393371 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS393371. That means the other end sits on the MB1640-1 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 AS393371?
AS393371 is assigned to MB1640-1, 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 AS393371 control?
AS393371 currently announces 256 routed IPv4 addresses.