Amazon Route 53 offers domain registration services and if you would like to keep your domains together like I do, you can transfer your current domain names easily.
In the past, I bough some domains from GoDaddy and generally use Amazon Route 53 as my DNS service. It is time to renew some of our domains and I decided to move them to AWS as they are extended 1 year automatically after the transfer. This will allow me to manage my domain names, as well as the services behind them all together on AWS. I will describe the process as a reference. Read more at Transferring Domain Registrations from GoDaddy to Amazon Route 53 post.