AS328581: the Fiber-One network
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Testar grátis 14 dias →AS328581 is an internet Autonomous System operated by Fiber-One (SL). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS328581?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS328581 was assigned to Fiber-One by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS328581 currently announces 3 IPv4 block(s), totaling about 3.1 thousand addresses (3,072 in all), registered in SL. Services from Fiber-One are reached through these addresses.
What it means to see AS328581 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS328581. That means the other end sits on the Fiber-One network (SL). 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 AS328581?
AS328581 is assigned to Fiber-One, registered in SL.
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 AS328581 control?
AS328581 currently announces about 3.1 thousand routed IPv4 addresses.