> Needed to add my phone number for access tokens etc. and somehow the moment I saved my number all my old friends and family members showing up as friend sugge

> Needed to add my phone number for access tokens etc. and somehow the moment I saved my number all my old friends and family members showing up as friend suggestions This could also be because one or more of your contacts (likely more) provided permission for the FB app to access their contacts/address book (and never revoked that permission, allowing Facebook to always have a current social graph) or were using pre-6.0 (Marshmallow) Android that didn't even have granular permissions requested at runtime (so apps could be installed only if the user accepted to provide all permissions that apps wanted, which for Facebook included contacts, photos, SMS and more).