The non-emergency number to find someone’s phone number is 411 or 555-1212. Calls placed to either of these numbers connect the caller to the local directory assistance service. To find a listing for a number in a different area code, the caller can dial the area code followed by 555-1212.
Similarly, dialing 800-555-1212 connects the caller with the directory assistance number for toll-free numbers. Directory assistance can provide the telephone numbers for individuals and businesses that have allowed their phone numbers to be provided by the service by not purchasing non-published service. Non-listed numbers are available through directory assistance.
Cellphone numbers are generally not available through directory assistance, unless the person to whom the number is assigned requests that it be included in the directory assistance service. Calls placed to directory assistance services are generally charged on a per-call basis.