If I change my phone from a flip style phone, to a PDA/ Smartphone, would I

[Mre'11tBlueAces6l2t]

have to change my number? I'm with AT&T, and I live in America.

I currently have a flip style phone (don't know what it's called anymore), and if I upgrade it to a Blackberry Bold, would I have to change my phone number?

(This is the third time I've asked this, and I haven't got any good answers on the other two, so I'm re-posting once again.)

 

[nmazz94]

no you wouln't cause all u have to do is put the SIM card in ur new phone, so u would have all ur contacts and the same #