AS44558: the NETONLINE network
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Testar grátis 14 dias →AS44558 is an internet Autonomous System operated by NETONLINE (Turkey). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS44558?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS44558 was assigned to NETONLINE by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS44558 currently announces 20 IPv4 block(s), totaling about 64 thousand addresses (64,000 in all), registered in Turkey. Services from NETONLINE are reached through these addresses.
What it means to see AS44558 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS44558. That means the other end sits on the NETONLINE network (Turkey). 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 AS44558?
AS44558 is assigned to NETONLINE, registered in Turkey.
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 AS44558 control?
AS44558 currently announces about 64 thousand routed IPv4 addresses.