We have a magic jack phone for our land line. When I tried calling the number back it says I can only call if the number has called me first. Who ever it is keeps calling my cell phone not our house. I have not tried answering but after reading all the posts I will be answering next time just to see what happens.
Its most likely someone that you know that does that kind of childish stuff. Prankdial probably owns the number but it was someone you know that knows ur number. I got a missed call yesterday from the 4377 number. naples florida. called back no one answered and this guy I kno does this kind of stuff so I wouldn't be surprised if is him again.