The Caller ID app identified the call as coming from Telecom Clarity landline. It was a robocall. It told me about $100 I've won, and it will be a walmart gift card. In order to receive the gift card, it told me to press 1 to get connected to a live representative. It must be a phishing scam. Beware.
Received a call from (303) 679-4807. I didn't answer. They didn't leave a message. Based on the other folks who've reported this number I'm just going to block them on my phone and not even bother calling them back.