Called my cell at 4:08pm Central May 1, 2014. SPAMMED number. Didn't leave message.
If you see a "1" after the area code, don't answer. They are scammers calling you on a spammed fake caller-ID number.
If you never answer any of these calls your number will hopefully fall off the active list.

Called rang 4 times, did not get a chance to answer. Call number back and Verizon reports its not a real number.  

called me at 1:50PM, EST - didn't leave a message - ID said South Dakota, USA