I received a call from the same number at 8:33 PM on 7/1/15 also in Plano. Caller ID said Out of Area. They hung up after 5th ring. That number is now blocked on my phone.
Called, didn't leave a message. Another website said it is a scam so it's now blocked. Caller ID said "out of area" but I'm in the same 972 area code, another reason to think it's telemarketers or a scam.