AS15691: the LEONET-AS- network
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Testar grátis 14 dias →AS15691 is an internet Autonomous System operated by LEONET-AS- (Italy). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS15691?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15691 was assigned to LEONET-AS- by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS15691 currently announces 5 IPv4 block(s), totaling about 19.5 thousand addresses (19,456 in all), registered in Italy. Services from LEONET-AS- are reached through these addresses.
What it means to see AS15691 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15691. That means the other end sits on the LEONET-AS- network (Italy). 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 AS15691?
AS15691 is assigned to LEONET-AS-, registered in Italy.
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 AS15691 control?
AS15691 currently announces about 19.5 thousand routed IPv4 addresses.