Area Code 240 Details and Prefixes
General Details about Area Code 240
Country United States
State / Province / Territory Maryland
Major City Unknown
Time Zone Unknown

Area Code 240 Prefixes

Prefix County Usage Type
240-200-xxxx Prince Georges
240-201-xxxx Saint Marys
240-203-xxxx Washington
240-204-xxxx Montgomery
240-205-xxxx Montgomery
240-206-xxxx Prince Georges
240-207-xxxx Montgomery
240-208-xxxx Charles
240-209-xxxx Charles
240-210-xxxx Charles
240-212-xxxx Garrett
240-213-xxxx Charles
240-214-xxxx Saint Marys
240-215-xxxx Frederick
240-216-xxxx Charles
240-217-xxxx Washington
240-218-xxxx Charles
240-220-xxxx Montgomery
240-221-xxxx Montgomery
240-222-xxxx Charles
240-223-xxxx Prince Georges
240-224-xxxx Montgomery
240-225-xxxx Frederick
240-228-xxxx Prince Georges
240-229-xxxx Charles
240-230-xxxx Charles
240-231-xxxx Washington
240-232-xxxx Prince Georges
240-233-xxxx Charles
240-234-xxxx Prince Georges
240-235-xxxx Montgomery
240-236-xxxx Frederick
240-237-xxxx Saint Marys
240-238-xxxx Montgomery
240-239-xxxx Saint Marys
240-241-xxxx Montgomery
240-242-xxxx Montgomery
240-243-xxxx Montgomery
240-244-xxxx Prince Georges
240-245-xxxx Prince Georges
240-246-xxxx Montgomery
240-247-xxxx Prince Georges
240-248-xxxx Saint Marys
240-249-xxxx Saint Marys
240-250-xxxx Prince Georges
240-251-xxxx Washington
240-252-xxxx Montgomery
240-253-xxxx Prince Georges
240-254-xxxx Charles
240-255-xxxx Montgomery
240-256-xxxx Saint Marys
240-257-xxxx Charles
240-258-xxxx Saint Marys
240-260-xxxx Prince Georges
240-262-xxxx Saint Marys
240-263-xxxx Montgomery
240-264-xxxx Prince Georges
240-265-xxxx Montgomery
240-266-xxxx Prince Georges
240-268-xxxx Montgomery
240-269-xxxx Prince Georges
240-270-xxxx Charles
240-271-xxxx Montgomery
240-272-xxxx Montgomery
240-273-xxxx Prince Georges
240-274-xxxx Montgomery
240-275-xxxx Garrett
240-276-xxxx Montgomery
240-277-xxxx Montgomery
240-278-xxxx Prince Georges
240-279-xxxx Charles
240-280-xxxx Prince Georges
240-281-xxxx Montgomery
240-282-xxxx Saint Marys
240-283-xxxx Montgomery
240-284-xxxx Allegany
240-285-xxxx Frederick
240-286-xxxx Montgomery
240-287-xxxx Washington
240-288-xxxx Frederick
240-289-xxxx Prince Georges
240-290-xxxx Prince Georges
240-291-xxxx Washington
240-292-xxxx Montgomery
240-293-xxxx Prince Georges
240-294-xxxx Prince Georges
240-295-xxxx Prince Georges
240-296-xxxx Prince Georges
240-297-xxxx Prince Georges
240-298-xxxx Saint Marys
240-299-xxxx Charles
240-300-xxxx Charles
240-303-xxxx Prince Georges
240-304-xxxx Prince Georges
240-305-xxxx Prince Georges
240-306-xxxx Montgomery
240-307-xxxx Frederick
240-308-xxxx Montgomery
240-309-xxxx Saint Marys
240-310-xxxx Washington
240-312-xxxx Prince Georges
240-313-xxxx Washington
240-314-xxxx Montgomery
240-315-xxxx Frederick
240-316-xxxx Montgomery
240-317-xxxx Saint Marys
240-318-xxxx Prince Georges
240-319-xxxx Howard
240-320-xxxx Charles
240-321-xxxx Garrett
240-322-xxxx Allegany
240-323-xxxx Frederick
240-324-xxxx Howard
240-325-xxxx Montgomery
240-326-xxxx Prince Georges
240-327-xxxx Montgomery
240-328-xxxx Montgomery
240-329-xxxx Washington
240-330-xxxx Montgomery
240-331-xxxx Prince Georges
240-332-xxxx Charles
240-333-xxxx Prince Georges
240-334-xxxx Prince Georges
240-335-xxxx Prince Georges
240-336-xxxx Montgomery
240-337-xxxx Prince Georges
240-338-xxxx Montgomery
240-339-xxxx Prince Georges
240-340-xxxx Montgomery
240-341-xxxx Frederick
240-342-xxxx Montgomery
240-343-xxxx Washington
240-344-xxxx Frederick
240-345-xxxx Montgomery
240-346-xxxx Charles
240-347-xxxx Washington
240-348-xxxx Prince Georges
240-349-xxxx Charles
240-350-xxxx Prince Georges
240-351-xxxx Prince Georges
240-352-xxxx Charles
240-353-xxxx Prince Georges
240-354-xxxx Prince Georges
240-355-xxxx Prince Georges
240-356-xxxx Frederick
240-357-xxxx Frederick
240-358-xxxx Montgomery
240-359-xxxx Charles
240-360-xxxx Prince Georges
240-361-xxxx Montgomery
240-362-xxxx Allegany
240-363-xxxx Montgomery
240-364-xxxx Montgomery
240-365-xxxx Montgomery
240-366-xxxx Washington
240-367-xxxx Frederick
240-368-xxxx Charles
240-369-xxxx Carroll
240-370-xxxx Montgomery
240-371-xxxx Prince Georges
240-372-xxxx Montgomery
240-373-xxxx Anne Arundel
240-374-xxxx Prince Georges
240-375-xxxx Prince Georges
240-376-xxxx Charles
240-377-xxxx Charles
240-378-xxxx Allegany
240-379-xxxx Frederick
240-380-xxxx Montgomery
240-381-xxxx Montgomery
240-382-xxxx Washington
240-383-xxxx Montgomery
240-384-xxxx Saint Marys
240-385-xxxx Frederick
240-386-xxxx Montgomery
240-387-xxxx Montgomery
240-388-xxxx Montgomery
240-389-xxxx Montgomery
240-390-xxxx Montgomery
240-391-xxxx Prince Georges
240-392-xxxx Prince Georges
240-393-xxxx Montgomery
240-394-xxxx Carroll
240-395-xxxx Montgomery
240-396-xxxx Prince Georges
240-397-xxxx Frederick
240-398-xxxx Montgomery
240-399-xxxx Montgomery
240-400-xxxx Montgomery
240-401-xxxx Montgomery
240-402-xxxx Prince Georges
240-403-xxxx Montgomery
240-404-xxxx Montgomery
240-405-xxxx Frederick
240-406-xxxx Montgomery
240-407-xxxx Prince Georges
240-408-xxxx Montgomery
240-409-xxxx Frederick
240-412-xxxx Charles
240-413-xxxx Prince Georges
240-414-xxxx Prince Georges
240-415-xxxx Frederick
240-416-xxxx Charles
240-417-xxxx Prince Georges
240-418-xxxx Prince Georges
240-419-xxxx Charles
240-420-xxxx Washington
240-421-xxxx Montgomery
240-422-xxxx Frederick
240-423-xxxx Montgomery
240-424-xxxx Prince Georges
240-425-xxxx Montgomery
240-426-xxxx Montgomery
240-427-xxxx Charles
240-428-xxxx Montgomery
240-429-xxxx Montgomery
240-430-xxxx Montgomery
240-431-xxxx Saint Marys
240-432-xxxx Prince Georges
240-433-xxxx Montgomery
240-434-xxxx Saint Marys
240-435-xxxx Charles
240-436-xxxx Frederick
240-437-xxxx Montgomery
240-438-xxxx Montgomery
240-439-xxxx Frederick
240-440-xxxx Frederick
240-441-xxxx Prince Georges
240-442-xxxx Garrett
240-444-xxxx Prince Georges
240-445-xxxx Montgomery
240-446-xxxx Frederick
240-447-xxxx Montgomery
240-448-xxxx Charles
240-449-xxxx Montgomery
240-450-xxxx Montgomery
240-452-xxxx Washington
240-453-xxxx Montgomery
240-454-xxxx Montgomery
240-455-xxxx Prince Georges
240-456-xxxx Prince Georges
240-457-xxxx Frederick
240-458-xxxx Charles
240-459-xxxx Prince Georges
240-460-xxxx Montgomery
240-461-xxxx Montgomery
240-462-xxxx Prince Georges
240-463-xxxx Montgomery
240-464-xxxx Montgomery
240-465-xxxx Prince Georges
240-466-xxxx Saint Marys
240-467-xxxx Prince Georges
240-468-xxxx Prince Georges
240-469-xxxx Washington
240-470-xxxx Prince Georges
240-471-xxxx Montgomery
240-472-xxxx Montgomery
240-473-xxxx Prince Georges
240-475-xxxx Montgomery
240-476-xxxx Montgomery
240-477-xxxx Montgomery
240-478-xxxx Montgomery
240-479-xxxx Prince Georges
240-480-xxxx Montgomery
240-481-xxxx Montgomery
240-482-xxxx Montgomery
240-483-xxxx Prince Georges
240-485-xxxx Montgomery
240-486-xxxx Prince Georges
240-487-xxxx Prince Georges
240-488-xxxx Garrett
240-489-xxxx Montgomery
240-490-xxxx Frederick
240-491-xxxx Prince Georges
240-492-xxxx Prince Georges
240-493-xxxx Prince Georges
240-494-xxxx Prince Georges
240-495-xxxx Prince Georges
240-497-xxxx Montgomery
240-498-xxxx Prince Georges
240-499-xxxx Montgomery
240-500-xxxx Washington
240-501-xxxx Montgomery
240-502-xxxx Montgomery
240-503-xxxx Charles
240-504-xxxx Montgomery
240-505-xxxx Montgomery
240-506-xxxx Montgomery
240-507-xxxx Montgomery
240-508-xxxx Prince Georges
240-509-xxxx Anne Arundel
240-510-xxxx Prince Georges
240-512-xxxx Prince Georges
240-513-xxxx Washington
240-514-xxxx Montgomery
240-515-xxxx Montgomery
240-516-xxxx Montgomery
240-518-xxxx Charles
240-519-xxxx Montgomery
240-520-xxxx Washington
240-522-xxxx Allegany
240-523-xxxx Charles
240-524-xxxx Prince Georges
240-525-xxxx Prince Georges
240-526-xxxx Saint Marys
240-527-xxxx Washington
240-528-xxxx Charles
240-529-xxxx Frederick
240-530-xxxx Charles
240-532-xxxx Prince Georges
240-533-xxxx Prince Georges
240-535-xxxx Montgomery
240-536-xxxx Montgomery
240-538-xxxx Saint Marys
240-539-xxxx Prince Georges
240-541-xxxx Montgomery
240-542-xxxx Prince Georges
240-543-xxxx Montgomery
240-544-xxxx Prince Georges
240-545-xxxx Prince Georges
240-546-xxxx Prince Georges
240-547-xxxx Prince Georges
240-548-xxxx Prince Georges
240-550-xxxx Montgomery
240-551-xxxx Montgomery
240-552-xxxx Montgomery
240-553-xxxx Prince Georges
240-554-xxxx Prince Georges
240-556-xxxx Prince Georges
240-558-xxxx Montgomery
240-559-xxxx Montgomery
240-560-xxxx Montgomery
240-561-xxxx Saint Marys
240-565-xxxx Prince Georges
240-566-xxxx Frederick
240-567-xxxx Montgomery
240-568-xxxx Prince Georges
240-573-xxxx Prince Georges
240-575-xxxx Frederick
240-577-xxxx Saint Marys
240-578-xxxx Frederick
240-580-xxxx Allegany
240-581-xxxx Prince Georges
240-582-xxxx Prince Georges
240-583-xxxx Prince Georges
240-585-xxxx Charles
240-586-xxxx Frederick
240-587-xxxx Saint Marys
240-593-xxxx Prince Georges
240-595-xxxx Montgomery
240-597-xxxx Montgomery
240-599-xxxx Montgomery
240-600-xxxx Prince Georges
240-601-xxxx Prince Georges
240-602-xxxx Prince Georges
240-603-xxxx Prince Georges
240-604-xxxx Prince Georges
240-605-xxxx Prince Georges
240-606-xxxx Prince Georges
240-607-xxxx Charles
240-608-xxxx Frederick
240-612-xxxx Prince Georges
240-613-xxxx Prince Georges
240-614-xxxx Montgomery
240-615-xxxx Prince Georges
240-616-xxxx Prince Georges
240-617-xxxx unknown
240-619-xxxx Montgomery
240-620-xxxx Montgomery
240-621-xxxx Montgomery
240-624-xxxx Prince Georges
240-625-xxxx Washington
240-626-xxxx Frederick
240-627-xxxx Prince Georges
240-629-xxxx Frederick
240-630-xxxx Prince Georges
240-631-xxxx Montgomery
240-632-xxxx Montgomery
240-638-xxxx Prince Georges
240-640-xxxx Charles
240-643-xxxx Montgomery
240-644-xxxx Montgomery
240-645-xxxx Montgomery
240-646-xxxx Prince Georges
240-650-xxxx Montgomery
240-651-xxxx Frederick
240-652-xxxx Saint Marys
240-654-xxxx Montgomery
240-662-xxxx Montgomery
240-667-xxxx Prince Georges
240-668-xxxx Montgomery
240-669-xxxx Montgomery
240-670-xxxx Prince Georges
240-671-xxxx Prince Georges
240-672-xxxx Montgomery
240-674-xxxx Frederick
240-675-xxxx Frederick
240-676-xxxx Montgomery
240-678-xxxx Montgomery
240-682-xxxx Charles
240-683-xxxx Montgomery
240-684-xxxx Prince Georges
240-685-xxxx Prince Georges
240-686-xxxx Montgomery
240-687-xxxx Montgomery
240-688-xxxx Montgomery
240-691-xxxx Prince Georges
240-694-xxxx Montgomery
240-695-xxxx Prince Georges
240-696-xxxx Prince Georges
240-699-xxxx Frederick
240-701-xxxx Montgomery
240-704-xxxx Prince Georges
240-705-xxxx Montgomery
240-706-xxxx Montgomery
240-707-xxxx Washington
240-708-xxxx Howard
240-712-xxxx Howard
240-713-xxxx Prince Georges
240-715-xxxx Montgomery
240-716-xxxx Prince Georges
240-718-xxxx Saint Marys
240-720-xxxx Montgomery
240-722-xxxx Montgomery
240-723-xxxx Montgomery
240-724-xxxx Prince Georges
240-725-xxxx Saint Marys
240-727-xxxx Allegany
240-731-xxxx Montgomery
240-734-xxxx Washington
240-737-xxxx Prince Georges
240-743-xxxx Prince Georges
240-744-xxxx Prince Georges
240-745-xxxx Montgomery
240-747-xxxx Prince Georges
240-750-xxxx Montgomery
240-751-xxxx Montgomery
240-752-xxxx Montgomery
240-753-xxxx Montgomery
240-754-xxxx Charles
240-755-xxxx Prince Georges
240-757-xxxx Prince Georges
240-762-xxxx Prince Georges
240-764-xxxx Montgomery
240-765-xxxx Montgomery
240-766-xxxx Montgomery
240-767-xxxx Prince Georges
240-770-xxxx Prince Georges
240-772-xxxx Frederick
240-773-xxxx Montgomery
240-776-xxxx Charles
240-777-xxxx Montgomery
240-778-xxxx Montgomery
240-779-xxxx Montgomery
240-780-xxxx Montgomery
240-782-xxxx Montgomery
240-783-xxxx Montgomery
240-784-xxxx Frederick
240-786-xxxx Prince Georges
240-787-xxxx Prince Georges
240-788-xxxx Prince Georges
240-790-xxxx Prince Georges
240-793-xxxx Montgomery
240-794-xxxx Saint Marys
240-800-xxxx Montgomery
240-801-xxxx Montgomery
240-802-xxxx Montgomery
240-803-xxxx Allegany
240-804-xxxx Charles
240-812-xxxx Montgomery
240-813-xxxx Montgomery
240-818-xxxx Washington
240-821-xxxx Montgomery
240-823-xxxx Prince Georges
240-826-xxxx Montgomery
240-832-xxxx Montgomery
240-833-xxxx Montgomery
240-837-xxxx Charles
240-838-xxxx Prince Georges
240-839-xxxx Montgomery
240-841-xxxx Prince Georges
240-842-xxxx Prince Georges
240-843-xxxx Prince Georges
240-844-xxxx Saint Marys
240-845-xxxx Montgomery
240-846-xxxx Prince Georges
240-848-xxxx Montgomery
240-855-xxxx Montgomery
240-857-xxxx Prince Georges
240-863-xxxx Prince Georges
240-864-xxxx Montgomery
240-865-xxxx Anne Arundel
240-868-xxxx Prince Georges
240-876-xxxx Montgomery
240-880-xxxx Montgomery
240-882-xxxx Prince Georges
240-883-xxxx Montgomery
240-888-xxxx Montgomery
240-892-xxxx Prince Georges
240-893-xxxx Montgomery
240-895-xxxx Saint Marys
240-897-xxxx Prince Georges
240-898-xxxx Prince Georges
240-899-xxxx Montgomery
240-901-xxxx unknown
240-903-xxxx Charles
240-912-xxxx Montgomery
240-920-xxxx Allegany
240-925-xxxx Saint Marys
240-929-xxxx Prince Georges
240-938-xxxx Montgomery
240-949-xxxx Prince Georges
240-964-xxxx Allegany
240-965-xxxx Prince Georges
240-976-xxxx unknown
240-979-xxxx Allegany
240-986-xxxx Charles
240-988-xxxx Prince Georges
240-993-xxxx Charles
240-994-xxxx Montgomery
240-997-xxxx Montgomery