Didn't recognize the number so I didn't answer and no message left. After checking other sites, found that this was yet another "free $100 walmart or target gift card" for which you have to give them your name, address, phone number (which they just called) credit card info and $3 for processing. Glad I didn't answer and have added to call block. Figured I should put this number here since this is the first place I go to identify unknown numbers.
Number had been calling for a few days. Called back and it was a woman offering me a $100 gift card. All I had to do was give her my address and credit card number! No way! I hung up immediately. Definitely scammers.