AS200533: the INITLAB network

Equipe PC Monitor · Atualizado em 19/09/2026

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AS200533 is an internet Autonomous System operated by INITLAB (Bulgaria). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS200533?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS200533 was assigned to INITLAB by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS200533 currently announces 2 IPv4 block(s), totaling 512 addresses (512 in all), registered in Bulgaria. Services from INITLAB are reached through these addresses.

What it means to see AS200533 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS200533. That means the other end sits on the INITLAB 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 AS200533?

AS200533 is assigned to INITLAB, 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 AS200533 control?

AS200533 currently announces 512 routed IPv4 addresses.

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