switching carriers, same iphone 6
Will any of this same device information or photos be affected, once the new carrier ports my phone number?
iPhone 6, iOS 12
Question marked as
If all you are doing is changing numbers? No, I don't think so,
But
I would always create a backup when every I'd make a change.
Some some troubleshooting steps require you to restore the device.
Save yourself any posable headache in future, create a backup first
How to back up your iPhone, iPad, and iPod touch
https://support.apple.com/en-us/HT203977
