AS203829: the LEITZ-AS network
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Testar grátis 14 dias →AS203829 is an internet Autonomous System operated by LEITZ-AS (Germany). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS203829?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS203829 was assigned to LEITZ-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS203829 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Germany. Services from LEITZ-AS are reached through these addresses.
What it means to see AS203829 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS203829. That means the other end sits on the LEITZ-AS network (Germany). 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 AS203829?
AS203829 is assigned to LEITZ-AS, registered in Germany.
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 AS203829 control?
AS203829 currently announces 256 routed IPv4 addresses.