Mr. Number 4. 0 makes it easy to block unwanted calls as well as identify & stop spam, scam and fraud. Block calls and SMS texts.from one person, an area code or the entire world- Stop telemarketers and debt collectors before they waste your time- Intercept calls from private/unknown numbers and hang up. or send to voice mail- Report spam calls and SMS texts to warn other users- Automatic caller lookup for all numbers in your phone's history so you'll know who to block. SMS Text blocking not supported by Android 4. 4/KitKat or later. Hang up not supported by Android 5. 0 or later. PCMag 100 Best Android Apps. New York Times: "Mr. Number is one of the most popular". Appy Award - Best Communications App. Block calls from one number or the world, identify and stop spam. Mr. Number is the most powerful call blocker on the market. Block calls and SMS texts.from a person, a business, hidden numbers, or the world. Pick up and hang up. on callers or send them to voicemail - you decide. Keep the content of blocked texts or trash them. Browse comments from other users when you get a spam call or text. Add 'Suspected Spam' to your block list and Mr. Number blocks them all automatically. Mr. Number now automatically looks up all callers in your recent calls and SMS texts for free. Any questions? Read our FAQ (http://support. mrnumber.com/home) or send a note to firstname.lastname@example.org, and we'll get back to you quickly.