AS271665: the TIAGO ROST NET network
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Testar grátis 14 dias →AS271665 is an internet Autonomous System operated by TIAGO ROST NET (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS271665?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS271665 was assigned to TIAGO ROST NET by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS271665 currently announces 1 IPv4 block(s), totaling 512 addresses (512 in all), registered in Brazil. Services from TIAGO ROST NET are reached through these addresses.
What it means to see AS271665 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS271665. That means the other end sits on the TIAGO ROST NET network (Brazil). 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 AS271665?
AS271665 is assigned to TIAGO ROST NET, registered in Brazil.
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 AS271665 control?
AS271665 currently announces 512 routed IPv4 addresses.