I found a phone last year that is a few years old. It’s an iPhone 6. It seems to work fine on wifi but when I put my Koodo sim card in it it doesn’t connect to the network and cannot make a call. How do I find the owner using the IMEI number? How do I find out if it is locked to a specific carrier? How do I find out if it is on the black list of lost phones and how to reactivate it? How does it become useful again?