I'm beginning to wonder if I should leave ATT Wireless after 15 years as soon as my contract expires. I started with them when it was BellSouth Mobility, then Cingular, now ATT. Here's why I'm thinking about leaving. My wife has had a problem with her number on 2 different phones she's used. People have called her and gotten the message that "the number is not in service." This usually happens when her phone is switched off. I don't know if it has happened to my phone because I don't get many calls. I called customer service and they agreed to re-register the phone, which means they did something on their end and my wife has to cycle the power on her phone. Hopefully this will solve the problem. I've called her phone a few times when she had it switched off and gone straight to voice mail. This is a problem since we don't have a landline anymore and our cellphones are our main phone numbers. She told me this has happened a few times over the last couple of months with 2 different phones and she's not happy about it. We still have about a year and a half left on our contracts and are wondering if we should switch to Verizon or Sprint and port our numbers. We only use our phones for voice calling and the occasional text message. I was just wondering if anyone else was having this problem.