The Royal couples second son was born at 11:01 BST, weighing 8lb 7oz, who is fifth in line to the throne.
Names are yet to be announced but will be revealed soon enough. Kensington Palace said the name of the baby would be announced in due course while a formal notice of the birth had been posted on the forecourt of Buckingham Palace, whilst the favourite names at the bookmakers include Arthur, Albert, Frederick, James and Philip.
(Private registrations for these could be something like AR17 HUR, AL18 ERT, FR13 DDY, J4 MES, and PH11 LLP)
We are sure that whatever the name, CarReg will be able to assist in finding the perfect numberplate for him!
Current number plates available fit for Royalty include: