Calling10's reverse search feature quickly solves the mystery of unidentified phone numbers that were hastily written down. With the reverse search feature you can find out who paged you before you return a call - all you need is the number, and our operators will take care of the rest. Dial the easy number that takes you a long way.

Calling10 charges are billed by either OAN Services or ILD Telecommunications, third party billers that bill our directory assistance phone calls on local telephone bills. Callers who use our directory assistance telephone service may see the OAN or ILD name on their phone bill along with Calling10.

It's a fast easy way to get national listings from our live operators. Gets you numbers nationwide - from your home or office, just by dialing Calling10. Over 120 million business and residential listings updated daily for our operators to access.

Facts and Answers about Directory Assistance
When you call an operator and request a telephone number, you are using directory assistance. This service can be provided by your local phone company, your long-distance company and various independent providers. The accuracy, price and method of access depends on the service you use.

How do I access directory assistance?
Most phone companies allow you to access directory assistance service by dialing “411.” Other directory assistance services require a different dialing pattern such as 555-1212, or a number that starts with “10-10.” Charges will vary significantly, check the rate before using any directory assistance service.