AS48045: the FLAGMAN-AS network

Equipe PC Monitor · Atualizado em 19/09/2026

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AS48045 is an internet Autonomous System operated by FLAGMAN-AS (Ukraine). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS48045?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS48045 was assigned to FLAGMAN-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS48045 currently announces 3 IPv4 block(s), totaling about 22.5 thousand addresses (22,528 in all), registered in Ukraine. Services from FLAGMAN-AS are reached through these addresses.

What it means to see AS48045 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS48045. That means the other end sits on the FLAGMAN-AS network (Ukraine). 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 AS48045?

AS48045 is assigned to FLAGMAN-AS, registered in Ukraine.

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 AS48045 control?

AS48045 currently announces about 22.5 thousand routed IPv4 addresses.

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