Can you block a caller on your cell phone?

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

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

How to trace 'private incoming cell calls' that have blocked their id

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 ...

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

How can I send mp3 songs to my lg cell phone

Keep getting blocked calls on my cell and it is really starting to p!## me off

Someone is asking for me and some people ohave contacted me, like ex-sister in law who I don't even know her phone number? ...

how do you block cell phone numbers

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