If you don't want people to know you're calling, you can hide caller ID by blocking your own number on both landlines and smartphones.

Learn how to block numbers on your iPhone through the Phone app, the Facetime app and through your messages.

Your phone number cannot be blocked while calling toll-free numbers or emergency services. The temporary way of keeping your mobile number invisible from caller ID is as easy as 1, 2, 3.

No matter what type of smartphone you're using, we can help you avoid all of those pesky robo and sales calls. Here's how to block a number on any smartphone.

“The vast majority of scam-related robocalls now have spoofed numbers that display the local area code, even when they’re placed somewhere else in the U.S. or even outside the country.” ...

From Google Voice, you can block a phone number from ringing on your cellphone with call rules designed to help you filter your incoming calls.

You can block a phone number or contact on Android from the Phone app, your contacts list, recent calls log, and more. Here's how to do it.