Hi ru4mx127! I just want to be sure I'm understanding this. You want to swap phones with another user on your account, correct? IE- your number on their current device, and vice-versa?
That process is actually a flip flop of the devices, not the numbers. You can process this through your www.sprint.com account, or I can do it for you. You'll need both phones in front of you, for this process.
I can flip flop them both right now. I need the IMEI from each device and which phone number is each IMEI is going on.