How to change number showing when Find My Phone action is Lost. Home number shows and I want wife's iPhone number to show as contact number if phone lost

Hello Ron Sr,

Thank you for visiting Apple Support Communities. It sounds like you'd like to change the contact phone number for your missing iPhone. I'd be happy to provide information that may help.

Follow the steps below to change the contact information displayed on your lost device or to turn off Lost Mode:

• Sign in to Find My iPhone with your Apple ID (the one you use with iCloud).
• In the Devices list, tap the device that’s in Lost Mode.
• Tap Actions, then tap Lost Mode .
• Change the contact information, or tap Turn Off Lost Mode.

I hope that helps. Take care!