How do you block a phone number from a home phone for free?

Question

How can I block certain numbers from calling my home phone (at no cost?)

Answer 1

To block a number that you  are calling you press *67 before the number, if that was what you were asking.

Answer 2

well in florida

we do *67 on our phone and it works i dunno how to un block it but....

hope it works

Answer 3

call customer care and complan against the person you want to block........

Answer 4

you call the phone company up and tell them you are having bad phone calls from this person at this number and you can't stand this. if they tell you to get police report call them and make it and get number of report and call them back and they should block it for you for free.