Try 800-FREE-411 (800-373-3411) instead. A computer or human being looks up a number for you at no charge, once you’ve listened to a 20-second ad. It’s a classic time-for-money swap.
Or, for an ad-free option, there is a little-known Google service. Send a text message to 46645 (that’s “Google”; leave off the last E for efficiency). In the body of the message, type what you’re looking for, like “Roger McBride 10025” or “chiropractor dallas tx.” Seconds later, you get a return message from Google, complete with the name, address, and phone number.