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301 Area Code: Location, Time Zone & Phone Lookup

(301)
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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.

Germantown Maryland map

Other Cities That Use 301 Area Code

Area Codes Starting with 3

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Phone Number Prefixes In The 301 Area Code