Why when I put cell number and code it wont log in?

I would like to know who is calling me from a restricted or private number before I answer the phone. Is there a code that I ...

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

how can I put pictures from computer to cell phone?

how do you block cell phone numbers

How do I block my cell phone number when texing

I made a playlist at project playlist.com and I got the code but where do I put the code in so that it will show up on myspac...

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

I really need to delete some numbers from my cell phone bill, before I print it out, but it wont let me. Is there any possibl...

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?