Keep your contact list intentional
Most messaging apps default to matching your phone's address book against their user base, which can quietly turn a number you saved once into a permanent chat contact. Turning off auto-add and "find me by phone number" keeps your contact list to people you actually chose to add.
This only affects future matching
Turning off these settings does not remove contacts you already have β it only stops new automatic matching and stops your number from being surfaced to others going forward.
Frequently Asked Questions
Will turning this off remove contacts I already added?
No. This setting only affects future automatic matching and suggestions β it does not touch your existing contact list.
Can I stop other people from finding me by my number entirely?
In most apps, yes β setting the "who can find me by phone number" option to a stricter level (such as My Contacts or Nobody) prevents your account from being suggested to people who have your number but aren't already a contact.