AS210518: the OPTLINE network
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Testar grátis 14 dias →AS210518 is an internet Autonomous System operated by OPTLINE (France). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS210518?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS210518 was assigned to OPTLINE by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS210518 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in France. Services from OPTLINE are reached through these addresses.
What it means to see AS210518 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS210518. That means the other end sits on the OPTLINE network (France). 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 AS210518?
AS210518 is assigned to OPTLINE, registered in France.
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 AS210518 control?
AS210518 currently announces 256 routed IPv4 addresses.