How to Restrict Facebook's Access to Your Phone Number
'How do I delete my number from Facebook?' you might be asking. Though you can rid it from your profile, it's near impossible to delete it from the social network's database. The best you can do is to limit who can find you via this phone number to just your friends. Here's how.
4 Mar 2019 ... And other people can use it to look you up on Facebook. ... and look for "Who can look you up using the phone number you provided?" ... contacts list could possibly upload it to Facebook when signing up for the service. ... of Ziff Davis, LLC and may not be used by third parties without explicit permission.