AS49209: the CTE-ASN network
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Testar grátis 14 dias →AS49209 is an internet Autonomous System operated by CTE-ASN (the United Kingdom). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS49209?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS49209 was assigned to CTE-ASN by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS49209 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in the United Kingdom. Services from CTE-ASN are reached through these addresses.
What it means to see AS49209 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS49209. That means the other end sits on the CTE-ASN network (the United Kingdom). 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 AS49209?
AS49209 is assigned to CTE-ASN, registered in the United Kingdom.
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 AS49209 control?
AS49209 currently announces 256 routed IPv4 addresses.