I keep getting calls from this number. When I call back I get an announcement indicating the call cannot go through. It is very likely like a scam phone.
After doing some more research, it looks as if this company has local numbers, but are either using, or have contracted with another telemarketing company that is using, VoIP (Internet) telephones... probably so they can control the caller/ID and disabling the incoming call capabilities.
I think the 214 number is from XO, but ultimately carried by Sprint.
Website info:
http://www.unitedairduct.com
LOCAL NUMBERS:
Phone: 469-737-3969 or
Toll-Free 1-877-737-3969
(both of these numbers are recordings that say the calls cannot be completed...)
The calls are being made from Manilla in the PI. The same people make calls for chiropractors, too. This call is for United Pro Air Ducts and Carpet Cleaning in the Dallas area.
I just got a call from this number, it was a lady that sounded like a robot she asked for a Maria Hernandez and I told her that there is nobody here by that name. Then she asked if I was one of the old owners and when I said no she hung up