Is it possible to create a subdomain in this case?

Question

Domain Name System

Is it possible to create subdomains on a hosting where the main domain is directed via an A-record? That is, the main domain is directed through an A-record to the server, and there you need to create a subdomain and your own A-record for it, for which you specify a third server. Is that possible?

Or are subdomains created only where NS records are directed?

Answer 1

You need to create a subdomain on the server where the NS record is directed