AS40138: the MDNET network
Monitore os PCs da sua empresa em tempo real, com dados objetivos.
Testar grátis 14 dias →AS40138 is an internet Autonomous System operated by MDNET (the United States). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS40138?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS40138 was assigned to MDNET by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS40138 currently announces 5 IPv4 block(s), totaling about 2.8 thousand addresses (2,816 in all), registered in the United States. Services from MDNET are reached through these addresses.
What it means to see AS40138 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS40138. That means the other end sits on the MDNET network (the United States). 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.
Prefere falar com a gente antes de instalar?
Deixe seus dados e um especialista mostra, no seu contexto, como o PC Monitor ajuda a resolver isso na sua empresa. Sem compromisso.
Perguntas frequentes
Who owns AS40138?
AS40138 is assigned to MDNET, registered in the United States.
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 AS40138 control?
AS40138 currently announces about 2.8 thousand routed IPv4 addresses.