Make sure you're eligible to change your number First, make sure your account and cell phone are eligible for a new number. If you're still within 30 days of your initial activation with AT&T ...

AT&T has cut $50 off the price of the iPhone 4, making the total price with new two year activation just $99 for a 16GB unit. If you’re alright with taking one with a “cosmetic blemish,” you ...