Nobody likes receiving calls from No Caller ID numbers, as they're usually scams. But there might be cases where you'll want your iPhone or Android to hide your phone number to protect your privacy.

There are tons of reasons why you'd want to block a phone number. Maybe you got a spam call and want to make sure that you don't get another call from that same number. Or maybe you don't want to hear ...

Corrections & Clarifications: A previous version of this column neglected to note that calling *77 on your mobile phone may instead connect you with law enforcement. The moment you hear that ...

Leo is a How-To Writer with Android Police. He is a lifelong Android user and tech hobbyist with an educational background rooted in Public Health. His writing experience ranges from app guides to ...