If you want to get rid of an iPhone number, there are a few different ways to go about it. The first option is to simply unregister the number with your carrier. This will remove it from your account and make it unavailable for use. If you don’t have a carrier, or if you want to keep the number but not use it anymore, you can delete the number from your iPhone using iTunes. This will remove it from your device and make it unavailable for use. Finally, if you just want to keep the number but don’t want anyone else to be able to access it, you can set up a password protection on the number. This will make it inaccessible until you enter the password ..