I blocked my number (*67) and called back. It was a recording that did not identify the company. Hours of operation are 7 days/week - EASTERN time.
Oklahoma is Central time. You are given The option of leaving a message to have your name removed from the list. They only require your full name, address and phone number to do that. Really? Not only would that not be smart, it's totally unsafe. Do not leave a message with your personal information on the voicemail of a company that chooses to remain anonymous.