AS42548: the KCHR-AS PJSC Rostelecom. Karachaevo-Cherkess branch network

AS42548 is an internet Autonomous System operated by KCHR-AS PJSC Rostelecom. Karachaevo-Cherkess branch (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS42548?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS42548 was assigned to KCHR-AS PJSC Rostelecom. Karachaevo-Cherkess branch by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS42548 currently announces 12 IPv4 block(s), totaling about 20.5 thousand addresses (20,480 in all), registered in Russia. Services from KCHR-AS PJSC Rostelecom. Karachaevo-Cherkess branch are reached through these addresses.

What it means to see AS42548 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS42548. That means the other end sits on the KCHR-AS PJSC Rostelecom. Karachaevo-Cherkess branch network (Russia). 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

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