I have a iPhone 5c that's on my plan, and an iPhone 5 that isn't. I want to change it where I can have the 5 on my plan in place of the 5c. How do I do this?
Do you mean the actual device, or the actual phone line?
You can change devices by putting your active SIM card in the other phone.
If you want to get rid of a phone line you have to have someone do an assumption of liability and take it over while you also do one taking on the other line.
