Area Codes:

Prefix County City
240-214-XXXX Saint Marys Mechanicsville
240-237-XXXX Saint Marys Callaway
240-239-XXXX Saint Marys Leonardtown
240-248-XXXX Saint Marys Ridge
240-249-XXXX Saint Marys Mechanicsville
240-256-XXXX Saint Marys Leonardtown
240-258-XXXX Saint Marys Ridge
240-262-XXXX Saint Marys Callaway
240-282-XXXX Saint Marys Mechanicsville
240-298-XXXX Saint Marys Leonardtown
240-309-XXXX Saint Marys Leonardtown
240-317-XXXX Saint Marys Callaway
240-384-XXXX Saint Marys Callaway
240-431-XXXX Saint Marys Tall Timbers
240-434-XXXX Saint Marys Leonardtown
240-466-XXXX Saint Marys Mechanicsville
240-526-XXXX Saint Marys Leonardtown
240-538-XXXX Saint Marys Leonardtown
240-561-XXXX Saint Marys Leonardtown
240-577-XXXX Saint Marys Leonardtown
240-587-XXXX Saint Marys Leonardtown
240-652-XXXX Saint Marys Mechanicsville
240-718-XXXX Saint Marys Callaway
240-725-XXXX Saint Marys Lexington Park
240-794-XXXX Saint Marys Callaway
240-895-XXXX Saint Marys Lexington Park
240-925-XXXX Saint Marys Leonardtown
301-247-XXXX Saint Marys Leonardtown
301-290-XXXX Saint Marys Mechanicsville
301-342-XXXX Saint Marys Patuxent River
301-373-XXXX Saint Marys Hollywood
301-472-XXXX Saint Marys Mechanicsville
301-475-XXXX Saint Marys Leonardtown
301-481-XXXX Saint Marys Leonardtown
301-536-XXXX Saint Marys Leonardtown
301-672-XXXX Saint Marys Tall Timbers
301-690-XXXX Saint Marys Leonardtown
301-737-XXXX Saint Marys Lexington Park
301-757-XXXX Saint Marys Patuxent River
301-769-XXXX Saint Marys Avenue
301-862-XXXX Saint Marys Lexington Park
301-863-XXXX Saint Marys Lexington Park
301-866-XXXX Saint Marys Lexington Park
301-872-XXXX Saint Marys Ridge
301-880-XXXX Saint Marys Tall Timbers
301-884-XXXX Saint Marys Mechanicsville
301-904-XXXX Saint Marys Leonardtown
301-994-XXXX Saint Marys Valley Lee
301-995-XXXX Saint Marys Patuxent River
301-997-XXXX Saint Marys Leonardtown