In Zimbabwe ZISPA is responsible for the registration of co.zw domains, TELONE for the registration of org.zw domains and UZ Iis responsible for the registration of .ac.zw domains.
For the World Wide Web, the Internet Corporation for Assigned Names and Numbers (ICANN) manages the domain names system. It is a non-profit organization that creates and implements the policies for domain names.
ICANN gives permission to companies called Domain Name Registrars for selling domain names. These domain registrars are allowed to make changes to the domain names registry on your behalf.
Domain name registrars can sell domain names, manage its records, renewals, and transfers to other registrars.
As a domain name owner, you are responsible for telling the registrar where to send requests. You are also responsible for renewing your domain registration.
Register a new domain here: https://www.ecowebzim.com