Chronology of past events: 1. Owned iPhone #1 with first phone number (and iMessage). 2. Purchased iPhone #2 with second phone number (and iMessage). 3. Combined iMessage accounts for both phone numbers, thus I received iMessages sent to first phone number and the second phone number at iPhone #2. 4. Ported first phone number to Google Voice and canceled AT&T service. Currently I still receive iMessages sent to both first and second phone numbers at iPhone #2. Questions 1. Can I wipe out/sell iPhone #1 while continuing to receive iMessages for the first phone number at iPhone #2? 2. If not, is there any work-around to maintain the iMessage capability for the first phone number at iPhone #2?