New area code adds 10-digit dialing Posted in: News Let your fingers do the walking. If you’re younger than 50, you probably don’t even remember that famous Yellow Pages slogan touting the convenience of conducting business over the phone. Starting next January, Kingfisher County callers and all others in the 405 area code will have to do a lot more fi ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!