Is there a way to block a specific phone number from calling your phone?

There are several ways to block specific phone numbers from calling a cell phone including caller ID management software built into phones, phone apps that can block specific and unidentified number and third-party service providers that manage call and phone privacy. Other options include Google Voice, which allows a user to create groups and set different levels of privacy for each contact in that group.

There are several free Android apps available through Google Play that allow users to manage calls and block numbers from recognized contacts. For iPhone users, the release of iOS7 in 2013 included a blocking function easily accessed from the "recent call" list.