301 Area Code: Location, Time Zone & Phone Lookup
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What Does Area Code 301 Mean?
Area code 301 is located in western Maryland and covers Germantown, Silver Spring, Waldorf, Frederick, and Rockville. It has a single overlay (240) that serves the same area.
- State: Maryland
- Major City: Germantown
- Timezone: Eastern
- Current Time:
Other Cities That Use 301 Area Code
- Gaithersburg
- Bowie
- Hagerstown
- Clinton
- Olney
- College Park
- Laurel
- Fort Washington
- Cumberland
- Oxon Hill
- Hyattsville
- Beltsville
- Damascus
- Aspen Hill
- Wheaton
- Potomac
- North Bethesda
- Chillum
- Montgomery Village
- South Laurel
- Suitland
- North Potomac
- Scaggsville
- Fairland
- Landover
- Greenbelt
- Camp Springs
- Langley Park
- Ballenger Creek
- Calverton
Area Codes Starting with 3
- 307 Area CodeWyoming WY
- 308 Area CodeNebraska NE
- 309 Area CodeIllinois IL
- 310 Area CodeCalifornia CA
- 312 Area CodeIllinois IL
- 313 Area CodeMichigan MI
- 314 Area CodeMissouri MO
- 315 Area CodeNew York NY
- 316 Area CodeKansas KS
- 317 Area CodeIndiana IN
- 318 Area CodeLouisiana LA
- 319 Area CodeIowa IA
- 320 Area CodeMinnesota MN
- 321 Area CodeFlorida FL
- 323 Area CodeCalifornia CA
Run a 301 Area Code Phone Lookup in Seconds
Area Code 301 Overview
Area code 301 is one of the original 86 area codes created by the North American Numbering Plan (NANP) in 1947. It covers central Maryland, including the Baltimore metropolitan area. 301 is a relatively small area code, with just over 2 million people in it. It's one of the most densely populated areas in the country, and one of the most expensive for phone companies to serve. This has led to numerous area code splits and overlays in recent years.
Despite the area code's small size, it's home to some of the most important companies and institutions in the country. The National Institutes of Health, Johns Hopkins University, and Lockheed Martin are all located in 301.
Area Code 301 History
301 area code historyThe 301 area code was one of the original area codes established in 1947. It originally served the entire state of Maryland.
In 1957, the 301 area code was split, and the western portion became the new area code 240. The eastern portion of 301 continued to serve the entire state of Maryland.
In 1991, the 301 area code was split again, and the western portion became the new area code 410. The eastern portion of 301 continued to serve the entire state of Maryland.
In 1997, the 301 area code was split again, and the eastern portion became the new area code 410. The western portion of 301 became the new area code 240.
In 2001, the 301 area code was split again, and the eastern portion became the new area code 240. The western portion of 301 became the new area code 301.
In 2009, the 301 area code was split again, and the eastern portion became the new area code 240. The western portion of 301 became the new area code 301.
Phone Number Prefixes In The 301 Area Code
- 301-200-xxxx
- 301-202-xxxx
- 301-203-xxxx
- 301-204-xxxx
- 301-205-xxxx
- 301-206-xxxx
- 301-207-xxxx
- 301-208-xxxx
- 301-209-xxxx
- 301-210-xxxx
- 301-212-xxxx
- 301-213-xxxx
- 301-214-xxxx
- 301-215-xxxx
- 301-216-xxxx
- 301-217-xxxx
- 301-218-xxxx
- 301-219-xxxx
- 301-220-xxxx
- 301-221-xxxx
- 301-222-xxxx
- 301-223-xxxx
- 301-224-xxxx
- 301-225-xxxx
- 301-226-xxxx
- 301-227-xxxx
- 301-228-xxxx
- 301-229-xxxx
- 301-230-xxxx
- 301-231-xxxx
- 301-232-xxxx
- 301-233-xxxx
- 301-234-xxxx
- 301-235-xxxx
- 301-236-xxxx
- 301-237-xxxx
- 301-238-xxxx
- 301-239-xxxx
- 301-240-xxxx
- 301-241-xxxx
- 301-242-xxxx
- 301-243-xxxx
- 301-244-xxxx
- 301-245-xxxx
- 301-246-xxxx
- 301-247-xxxx
- 301-248-xxxx
- 301-249-xxxx
- 301-250-xxxx
- 301-251-xxxx
- 301-252-xxxx
- 301-253-xxxx
- 301-254-xxxx
- 301-255-xxxx
- 301-256-xxxx
- 301-257-xxxx
- 301-258-xxxx
- 301-259-xxxx
- 301-260-xxxx
- 301-261-xxxx
- 301-262-xxxx
- 301-263-xxxx
- 301-264-xxxx
- 301-265-xxxx
- 301-266-xxxx
- 301-267-xxxx
- 301-268-xxxx
- 301-270-xxxx
- 301-271-xxxx
- 301-272-xxxx
- 301-273-xxxx
- 301-274-xxxx
- 301-275-xxxx
- 301-276-xxxx
- 301-277-xxxx
- 301-278-xxxx
- 301-279-xxxx
- 301-280-xxxx
- 301-281-xxxx
- 301-282-xxxx
- 301-283-xxxx
- 301-284-xxxx
- 301-285-xxxx
- 301-286-xxxx
- 301-287-xxxx
- 301-288-xxxx
- 301-289-xxxx
- 301-290-xxxx
- 301-291-xxxx
- 301-292-xxxx
- 301-293-xxxx
- 301-294-xxxx
- 301-295-xxxx
- 301-296-xxxx
- 301-297-xxxx
- 301-298-xxxx
- 301-299-xxxx
- 301-300-xxxx
- 301-302-xxxx
- 301-303-xxxx
- 301-304-xxxx
- 301-305-xxxx
- 301-306-xxxx
- 301-307-xxxx
- 301-308-xxxx
- 301-309-xxxx
- 301-310-xxxx
- 301-312-xxxx
- 301-313-xxxx
- 301-314-xxxx
- 301-315-xxxx
- 301-316-xxxx
- 301-317-xxxx
- 301-318-xxxx
- 301-319-xxxx
- 301-320-xxxx
- 301-321-xxxx
- 301-322-xxxx
- 301-323-xxxx
- 301-324-xxxx
- 301-325-xxxx
- 301-326-xxxx
- 301-327-xxxx
- 301-328-xxxx
- 301-329-xxxx
- 301-330-xxxx
- 301-331-xxxx
- 301-332-xxxx
- 301-333-xxxx
- 301-334-xxxx
- 301-335-xxxx
- 301-336-xxxx
- 301-337-xxxx
- 301-338-xxxx
- 301-339-xxxx
- 301-340-xxxx
- 301-341-xxxx
- 301-342-xxxx
- 301-343-xxxx
- 301-344-xxxx
- 301-345-xxxx
- 301-346-xxxx
- 301-347-xxxx
- 301-348-xxxx
- 301-349-xxxx
- 301-350-xxxx
- 301-351-xxxx
- 301-352-xxxx
- 301-353-xxxx
- 301-354-xxxx
- 301-355-xxxx
- 301-356-xxxx
- 301-357-xxxx
- 301-358-xxxx
- 301-359-xxxx
- 301-360-xxxx
- 301-361-xxxx
- 301-362-xxxx
- 301-363-xxxx
- 301-364-xxxx
- 301-365-xxxx
- 301-366-xxxx
- 301-367-xxxx
- 301-368-xxxx
- 301-369-xxxx
- 301-370-xxxx
- 301-371-xxxx
- 301-372-xxxx
- 301-373-xxxx
- 301-374-xxxx
- 301-375-xxxx
- 301-376-xxxx
- 301-377-xxxx
- 301-378-xxxx
- 301-379-xxxx
- 301-380-xxxx
- 301-382-xxxx
- 301-383-xxxx
- 301-384-xxxx
- 301-385-xxxx
- 301-386-xxxx
- 301-387-xxxx
- 301-388-xxxx
- 301-389-xxxx
- 301-390-xxxx
- 301-391-xxxx
- 301-392-xxxx
- 301-393-xxxx
- 301-394-xxxx
- 301-395-xxxx
- 301-396-xxxx
- 301-397-xxxx
- 301-398-xxxx
- 301-399-xxxx
- 301-401-xxxx
- 301-402-xxxx
- 301-403-xxxx
- 301-404-xxxx
- 301-405-xxxx
- 301-406-xxxx
- 301-407-xxxx
- 301-408-xxxx
- 301-409-xxxx
- 301-412-xxxx
- 301-413-xxxx
- 301-414-xxxx
- 301-415-xxxx
- 301-416-xxxx
- 301-417-xxxx
- 301-418-xxxx
- 301-419-xxxx
- 301-420-xxxx
- 301-421-xxxx
- 301-422-xxxx
- 301-423-xxxx
- 301-424-xxxx
- 301-425-xxxx
- 301-426-xxxx
- 301-427-xxxx
- 301-428-xxxx
- 301-429-xxxx
- 301-430-xxxx
- 301-431-xxxx
- 301-432-xxxx
- 301-433-xxxx
- 301-434-xxxx
- 301-435-xxxx
- 301-436-xxxx
- 301-437-xxxx
- 301-438-xxxx
- 301-439-xxxx
- 301-440-xxxx
- 301-441-xxxx
- 301-442-xxxx
- 301-443-xxxx
- 301-444-xxxx
- 301-445-xxxx
- 301-446-xxxx
- 301-447-xxxx
- 301-448-xxxx
- 301-449-xxxx
- 301-451-xxxx
- 301-452-xxxx
- 301-453-xxxx
- 301-454-xxxx
- 301-455-xxxx
- 301-456-xxxx
- 301-457-xxxx
- 301-458-xxxx
- 301-459-xxxx
- 301-460-xxxx
- 301-461-xxxx
- 301-462-xxxx
- 301-463-xxxx
- 301-464-xxxx
- 301-465-xxxx
- 301-466-xxxx