Isn't it crazy to think of that? Numbers and addresses too. There's something called The White Pages phone look up web site but you pay for the information. It's also dependent on getting internet in the first place, having a credit card plus trusting you can give your card number to whatever site you're using.
There's a delivery around here or was until recently. Phone books in plastic got dropped at mail boxes. You'd see them sitting for weeks on top of rural boxes, no one seems to bring them in.