AS35503: the BG-SCHOOL-AS network
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Testar grátis 14 dias →AS35503 is an internet Autonomous System operated by BG-SCHOOL-AS (Bulgaria). Here is what that means and why this number may show up when you investigate a connection on your network.
What is AS35503?
An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS35503 was assigned to BG-SCHOOL-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.
Reach on the internet
AS35503 currently announces 2 IPv4 block(s), totaling 768 addresses (768 in all), registered in Bulgaria. Services from BG-SCHOOL-AS are reached through these addresses.
What it means to see AS35503 on your network
When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS35503. That means the other end sits on the BG-SCHOOL-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 AS35503?
AS35503 is assigned to BG-SCHOOL-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 AS35503 control?
AS35503 currently announces 768 routed IPv4 addresses.