I was contacted today via text regarding "needing AC units repaired or possibly changed out at a few residential properties", I responded "who is this?", I  never received an answer. A few hours later I received a phone call from the same area code but a different phone number saying they tried to contact me previously via text.  When I called back a voicemail finally picked up that said it was a lady named Lisa with a company named Four Star.
Not going to waste my time.