iCloud Contacts has randomly added a text string to phone numbers…

Hi JohnMarc,

We'd recommend resolving the issue by checking for silence notifications with a Focus status by completing the steps listed here: Allow or silence notifications for a Focus on iPhone that are also listed below.

"Allow or silence notifications from specific people during a Focus

1. Go to Settings  > Focus, then choose a Focus—for example, Do Not Disturb, Personal, Sleep, or Work.
2. Tap People (or tap Choose People), then do one of the following: 

• Allow specific people: Tap Allow Notifications From, tap , then select from your contacts.
  • You can also turn on options to allow calls from certain groups of people and allow repeated calls (two or more calls from the same person within 3 minutes).
• Silence specific people: Tap Silence Notifications From, tap , then select from your contacts.
  • You can also turn on Allow Calls From Silenced People.

Note: Regardless of your Focus settings, you can allow calls from your emergency contacts to come through. See Allow calls from emergency contacts when notifications are silenced, below."

Best regards.

Mine have the text xappleiomappinginfo1

The suggestion about modifying the focus setting is no help