Based on the postings here (thanks guys) I did not answer this number and they did not leave a message. Phone number is 718-213-4458, caller ID showed "New York NY", area code 718 is the NYC area.
Called my business 5 times in 5 minutes this morning. No one was available to take it, so I guess I will see what happens when normal business hours resume.
Shows as New York, NY... No message left... They became yet another spam caller caught and blocked by my PhoneTray Pro software (see - phonetray dot com). A rock solid program for blocking these fools.