Can you transfer your mobile phone number to your new iPhone?

They can do it at the AT&T store. But you have to have under like 230/250? contacts. It only takes a minute and it's really easy for them.

If your current phone does not support syncing contacts to a computer, you can also (usually) bring the phone to your wireless carrier and have them transfer your contacts onto a flash drive. Once they are on the flash drive, they will still need to be imported to Address Book or Entourage on a Mac or Outlook or Outlook Express on a PC. Once they are stored in your contact management program, you will need to connect your iphone and be sure that "sync contacts" ( found in iTunes by connecting your iphone to the computer and selecting the 'Info' tab located at the top of the iTunes main screen, above the picture of your iphone that appears when you connect) is selected. Then merely choose your content manager from the list under the sync contacts selection, and perform a sync. If you receive a message asking if you would like to replace or merge data, please be aware that 'merge' is the correct selection if you do not want to erase your contact info in the iphone.

The process to make this happen is:First, you should transfer all your contact information to Microsoft Outlook on a PC or Address Book or Entourage on a Mac.Second, you can then sync your iphone with your computer to get your contacts.

WARNING! If you have an older phone , or a phone from certain carriers, it's possible you'll be in for a lot of frustration. One of the guys at Wired Magazine just did a podcast about this-- he started with a Sprint phone and ended up going to SEVEN different stores in New York City-- various locations of Sprint, AT&T, the Apple Store, and Best Buy-- before he found someone who could transfer his contacts. Helpful, a good list of things to watch out for, and pretty funny

You might try the free service PhoneCopy.com, which supports cross-platform transfers between almost 2,000 phone models including iphone, ipad, Android, Nokia, Samsung, LG, Motorola and others. It has many positive feedback on AppStore.