How to put contact number on iPhone lock screen?
How do I put contact numbers on my iPhone Home Screen
[Re-Titled by Moderator]
Question marked as
Hello~ I have used this excellent prior post by *Tesserax* to do so before loss of iPhone…
put text on existing wallpaper? - Apple Community
Or if after your iPhone is lost or stolen…
Mark a device as lost in Find My on iPhone - Apple Support
~Katana-San~