With the launch of the iPhone 4 just two weeks away, many are wondering if they are eligible for the upgrade pricing on the handset. If you are on a family plan, it gets especially tricky, because AT&T doesn’t qualify all the phones on a family plan for an upgrade as soon as they do the main line on the account. Or, you just may not have your upgrade date at the top of your head. Fear not—there is a very easy way to find out if you are eligible for an upgrade, and what price you’ll pay for an iPhone 4 at launch, if you choose to buy one.
Simply dial *639# on your AT&T mobile phone (iPhone or otherwise,) and within a few seconds, you will receive a free SMS message from them letting you know your upgrade status. Simple!