People, all you need to do is go online and search your carrier's name to find out their custom calling features with their directions using them on that phone line. You may need to do a separate blocking or screening on your home phone as well as your cell and they may each have different codes, to do so. Be sure to follow directions carefully, as you may end up rejecting either all calleys or a special caller you really want to hear from.
And yes, this number has attempted to call me again recently so I've added them to my blocked, screened or rejected list.
ALWAYS CHECK FROM AN ALTERNATE PHONE TO VERIFY WHAT YOU'VE PROGRAMMED!
So be sure you are using the correct terminology per your service provider. Also, check your list often and remember YOU are in control of your phone service, it's not the other way around.