Giving up your personal phone number to telemarketers or during transactions on Facebook Marketplace and Craigslist isn't ideal. Instead of divulging private details to people you don't know, you can ...

Although there's a pretty good chance you already have a phone number on your smartphone, your primary number assigned by your carrier isn't your only option for calling and texting. There are ...

Offering usernames will allow people to stop giving out their phone number —a sensitive piece of information— in order to connect with others on the messaging app. Encrypted messaging service Signal ...

You can change your phone number on WhatsApp whether you're still using the same phone, or you're using a new phone.

You can block or unblock a number on an Android phone using the built-in Phone app's "Blocked numbers" menu.