FTC Data
At least 2 consumers from Iowa reported phone number 319-318-3506 to the Federal Trade Commission. 100% of complaints reported the call or text message as a robocall or recorded message. The last complaint was on November 13, 2018.
Monticello
Help others by rating this number - was it spam, a business, or something else?
Spam call presumably. Not someone I know and no message left. I see from other searches I'm not the only one.