I've been with t-mobile for 7 years and I've had such a bad time with them since my last upgrade, my phone has broken 10 times and I've had hardly any luck 'repairing it' and they've messed up my bill so many times so I'm going to change. But I'm wondering if it's possible to keep my number if I change networks? I have a lot of business contacts on my phone and I'm wondering if it would be too much hassle to give everyone a new number. I know it sounds stupid, but I am useless when it comes to any form of technology!