AS133258: the MCXSX-AS-IN MCX STOCK EXCHANGE LIMITED network

AS133258 is an internet Autonomous System operated by MCXSX-AS-IN MCX STOCK EXCHANGE LIMITED (India). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS133258?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS133258 was assigned to MCXSX-AS-IN MCX STOCK EXCHANGE LIMITED by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS133258 currently announces 4 IPv4 block(s), totaling about 1 thousand addresses (1,024 in all), registered in India. Services from MCXSX-AS-IN MCX STOCK EXCHANGE LIMITED are reached through these addresses.

What it means to see AS133258 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS133258. That means the other end sits on the MCXSX-AS-IN MCX STOCK EXCHANGE LIMITED network (India). 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.