Blocking spam text messages on iOS 10

I’m blogging this because the user interface in different parts of iOS isn’t consistent so it’s not immediately obvious how to do it.

Supposing you receive a spam/unwanted text from a particular number (a full number or shortcode, doesn’t matter.)

– open Messages and view the conversation
– Click the (i) symbol in top right corner
– Click phone number on following screen (not the icons, to the left of the screen where the actual number is, you may not think it’s clickable but it is)
– The next screen will have a Block this caller link at the bottom

This is confusing because there are other ways to bring up a similar screen but without the Block option at the bottom.

Tested in iOS 10.1 and 10.2