The NPC (Number Portability Company) states that once a number has been ported, there is a two-month “freeze” period on porting those numbers again; you will therefore not be able to port to a new service provider during this time; however, a port reversal is possible. This will allow you to port the number back to your original service provider. The port reversal process can take anywhere between 1 and 3 weeks. Should a port reversal not be actioned within the freeze period and you wish to move the number from one service provider to another, a standard porting process applies.
Immediate port reversals are only available in certain fraudulent cases and are not allowed when a customer is unhappy with the new service provider’s quality of service.