People can get just about any number -work, cell, unlisted, listed just by using the internet phone directories, reverse look up and background search directories. all a person has to do is pay anywhere between $7.95 up to sometimes into the $40.00 - $50.00 dollar range by pay pal and they have their information complete with present and last known addresses, phone numbers and so on. I guess everything has it pros and cons and the internet is no different. When I had my cell phone I made sure it had a caller ID feature so that I didn't have to answer the calls I didn't want to. They would go to voicemail and I'd just delete them. After not getting their calls returned they stopped calling.