AS201481: the CDISA network
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Testar grátis 14 dias →AS201481 is an internet Autonomous System operated by CDISA (Switzerland). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS201481?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS201481 was assigned to CDISA by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS201481 currently announces 2 IPv4 block(s), totaling 512 addresses (512 in all), registered in Switzerland. Services from CDISA are reached through these addresses.
What it means to see AS201481 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS201481. That means the other end sits on the CDISA network (Switzerland). 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 AS201481?
AS201481 is assigned to CDISA, registered in Switzerland.
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 AS201481 control?
AS201481 currently announces 512 routed IPv4 addresses.