I received a 720-639-7961 which is a Colorado phone number. As soon as I answered the phone the caller asked if I would be interested in a security system for my home. I told him I am not interested. He continued to tell me the installation would be free. I advised I do not own a home. The caller immediately got frustrated and hung up on me. If this was a legitimate call, he would not just hang up. I have received a similar call from a California number twice for 2015.
Caller: Security system company