Who I have the same questioned this topic

I know how to change my existing cell phone / mobile number.

But when I walk through the online process, it does not give me a list of open phone numbers to choose from. It merely states what my new phone number will be based on the prefix that I've chosen and if I don't like it, then I have to choose a different prefix or wait until the next day to see what lucky number I'll draw next.

Is there a way I can manually choose a phone number from an availability list or something similar? I would like to be able to choose my next phone number. Is this possible through their online system, or do I need to go into a store and bug the hell out of some rep to let me pick my new phone number from a list on his computer?

Thanks.