Got a call from this number today. A live person was on the other end asking for me so I said I wasn't home to see if they would leave a message. They didn't want to leave a message. The name on caller ID was TMC.
1-480-497-2570: someone from this number calls, then hangs up. This is an Arizona number and it's probably an auto dialer and a room of telemarketers who are credited by the amount of phone calls they make, not how many people they talk to.