May 14, 2014 · To block a number on 'at' - you have to call your credit number, and you credit number should give you some options. It should say, and for anything else please press (for example) 4. Dec 03, 2011 · How can I block certain incoming calls (land line) my provider is Windstream.? I have certain annoying calls coming in that i would like to block from calling my home. My service provider is Windstream .

In this tutorial, you will learn how to: • Block or unblock recent callers • Manage blocked numbers through Settings . You cannot block an Unknown Caller (No Caller ID), but you can turn on Do Not Disturb manually and set it to "Only allow calls from your contacts list."