Called the number back and an automated message instructed me to press '1' to have my number removed from there list after 48 business hours. I'm taking no chances so I'm blocking the creeps.
Be careful, I had alarm installed by guys claiming to be with ATT, found out only 1 was, others from Endeavor Telecom. After install I was experiencing daily break ins, take a look at facebook pics at lynn.hansen.984 you can see the crossed wire install to make my system unresponsive
I got a call from Minnesota. I called back and the message is just the same repeated "Hi, if you want to be on the do not call list please press 1". And then after 3-4 (I can't be bothered to count it) times it hangs up. I tried texting them and I got a respond from "900080004222" the person who called us is on a land line and the phone is verizon I think. This new number wants me to pay to message them. This number is also connected to 1(459)-121-8344, 1(720)-398-2717, 1(310)-564-1304, 1(541) 233-2304, 1(209) 220-2319, 1(206) 445-6108, 1(773) 554-3796, and 1(310) 564-1304. THESE ARE SCAMS!!! DON'T ANSWER THEM!!!
You may have dodged a bullet, did you see the reply to one of the posts regarding ATT/Endeavor. Make sure you know who you are doing business with. Scary info on that facebook page.