I'd like to assist you with a way to block a phone number. Use this link to the steps for call and message blocking http://is.gd/X8fHll. Also, at the link is some helpful tips and information for helping you with more ways of being safe. I trust this help you!
Follow us on Twitter @VZWSupport
Blocking on a prepaid is different than on a contract. Call Customer Service at 1-888-294-6804 and they can help you with that, or call from your cell *611 That is a free call from your cell.