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

You can't see blocked messages from a number you've blocked on an iPhone, so you'll have to unblock that number if you want ...

There are plenty of good reasons to block someone on your iPhone. Maybe your ex broke your heart but still rings you when bored. Or perhaps you’re tired of the supposed friend who sends you memes at ...