Iphone question

learninmypc

Posts: 9,578   +722
I have an iphone 6 Plus, NO PHONE NUMBER attached to it, in the upper left corner where (I'm guessing) it shows the carrier, mine used to show No Service. Now it shows Extended. I got it 2nd hand a few years back & it has NEVER had a number attached to it since I've had it. Any idea why the change???