AS12876: the Online SAS network
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Testar grátis 14 dias →AS12876 is an internet Autonomous System operated by Online SAS (France). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS12876?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS12876 was assigned to Online SAS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS12876 currently announces 19 IPv4 block(s), totaling about 569.6 thousand addresses (569,595 in all), registered in France. Services from Online SAS are reached through these addresses.
What it means to see AS12876 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS12876. That means the other end sits on the Online SAS 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 AS12876?
AS12876 is assigned to Online SAS, 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 AS12876 control?
AS12876 currently announces about 569.6 thousand routed IPv4 addresses.