AS39184: the ULTRANET-AS network
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Testar grátis 14 dias →AS39184 is an internet Autonomous System operated by ULTRANET-AS (Bulgaria). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS39184?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS39184 was assigned to ULTRANET-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS39184 currently announces 29 IPv4 block(s), totaling about 55.8 thousand addresses (55,808 in all), registered in Bulgaria. Services from ULTRANET-AS are reached through these addresses.
What it means to see AS39184 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS39184. That means the other end sits on the ULTRANET-AS network (Bulgaria). 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 AS39184?
AS39184 is assigned to ULTRANET-AS, registered in Bulgaria.
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 AS39184 control?
AS39184 currently announces about 55.8 thousand routed IPv4 addresses.