941-747-7539 called April 14, 2017 at 11:42 am.  No message.  Caller ID = OUT OF AREA,  so  when coupled with NO MESSAGE is usually a guaranteed sign of spoofed caller number & a telemarketer or SCAMMER (who doesn't want to be identified).
Looking forward to Ajit Pai, the Chairman of the FCC, to enforcing Robocall Strike Force in 2017! Scammers using Robocalling are #1 complaint to FCC, who call at a rate of 2.4 billion calls per month.  FCC recently shut down one Robocaller who was stealing money from victims at $500,000 per day! Another robocaller that FCC recently shut down was making 12-15 million calls PER DAY!