AS15638: the UTL Ussuriysk network
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Testar grátis 14 dias →AS15638 is an internet Autonomous System operated by UTL Ussuriysk (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS15638?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15638 was assigned to UTL Ussuriysk by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS15638 currently announces 5 IPv4 block(s), totaling about 9.2 thousand addresses (9,216 in all), registered in Russia. Services from UTL Ussuriysk are reached through these addresses.
What it means to see AS15638 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15638. That means the other end sits on the UTL Ussuriysk network (Russia). 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 AS15638?
AS15638 is assigned to UTL Ussuriysk, registered in Russia.
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 AS15638 control?
AS15638 currently announces about 9.2 thousand routed IPv4 addresses.