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

If your calls and texts aren't getting through to someone, there's a chance your number might have been blocked. But don't jump to conclusions just yet. It's just as plausible that the person's phone ...

You can block a number on your phone so that a person or company can't call or text you from a particular number. Here's how ...