How do you block numbers on a cingular at&t cell phone?

How do I block a cell phone number from calling me on my cell phone

I need directions on how to block a specific cell phone number from calling my cell phone.

I have the prepaid cellphone service net10 and I was wondering how to block a person's number with that service?

I blocked someones phone number from my buddy list on aim. will they be able to aim me even if I have them blocked? and will ...

how do you block cell phone numbers

How do I block my cell phone number when texing

just wanna know how to block the number because whoever is calling is doing so under restricted.

How do you block someones phone number on a cell phone?

There is this girl at my school that somehow got my cell phone number. I need help, I want to know how to block phone calls f...

Is there a way to tell when you call someone if they are blocking your number?