Got a call from this number and when i answered there seemed to be nobody there. Likely a telemarketing dialer, they have a delay when you answer. Add your number to the don't call list.
Just called 724-719-9123. The company is called Full Service Network. They offer telephone and internet access. They're located in downtown Pittsburgh in the US Steel building on the 30th floor. They've been in business for more than 20 years according to the lady i spoke with. I just called to see who they were and she still tried to sell me phone services. LOL