List of Own Numbers (Menu 4-4-3)
Within this menu you can store, erase and edit the phone numbers
assigned to your SIM card, if this is allowed by the card.
This function is a memory aid, which you can use to check your own
phone numbers if you need to do so.
For this reason, the edits that you make here do not affect in any
way the actual subscriber number(s) of your SIM card.