AS43591: the MULTICOM network
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Testar grátis 14 dias →AS43591 is an internet Autonomous System operated by MULTICOM (Sweden). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS43591?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS43591 was assigned to MULTICOM by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS43591 currently announces 5 IPv4 block(s), totaling about 15.6 thousand addresses (15,616 in all), registered in Sweden. Services from MULTICOM are reached through these addresses.
What it means to see AS43591 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS43591. That means the other end sits on the MULTICOM network (Sweden). 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 AS43591?
AS43591 is assigned to MULTICOM, registered in Sweden.
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 AS43591 control?
AS43591 currently announces about 15.6 thousand routed IPv4 addresses.