These zones are hosted on Azure’s name servers to which you can delegate the zone from the parent domain.
To delegate your domain to Azure DNS, you need to identify the DNS name servers for your DNS zone. Each time a DNS zone is created, Azure DNS allocates DNS name servers from a pool. After the DNS name servers are assigned, Azure DNS automatically creates authoritative NS (or Name server) records in your DNS zone.
The delegation process for your domain involves several steps: