Area Code 301 Details

State : Maryland
Major City : Rockville
Timezone : Eastern

301 is the North American telephone area code for the state of Maryland, including the cities of Aspen Hill, Bethesda, Bowie, Chillum, Clinton, College Park, Cumberland, Fairland, Fort Washington, Frederick, Gaithersburg, Germantown, Greenbelt, Hagerstown, Landover, Montgomery Village, North Bethesda, North Laurel, North Potomac, Olney, Oxon Hill-glassmanor, Potomac, Rockville, Silver Spring, South Laurel, St. Charles, Suitland, Waldorf, Wheaton-glenmont, and White Oak.

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Prefix Primary City Company County Usage
301-200-#### Indian Head, MD Bandwidth.com Clec Unknown
301-202-#### Chevy Chase, MD New Cingular Wireless PCS - DC Unknown
301-203-#### Fort Washington, MD Verizon Maryland Prince George's Landline
301-204-#### Bethesda, MD New Cingular Wireless PCS - DC Montgomery Cell Number
301-205-#### Edgewater, MD Verizon Maryland Anne Arundel Landline
301-206-#### Laurel, MD Verizon Maryland Prince George's Landline
301-207-#### Greenbelt, MD Usa Mobility Wireless Prince George's Cell Number
301-208-#### Gaithersburg, MD Verizon Maryland Montgomery Landline
301-209-#### Hyattsville, MD Verizon Maryland Prince George's Landline
301-210-#### Beltsville, MD Verizon Maryland Prince George's Landline
301-212-#### Gaithersburg, MD Verizon Maryland Montgomery Landline
301-213-#### Beltsville, MD Sprint Spectrum L.p. Prince George's Cell Number
301-214-#### Rockville, MD Verizon Maryland Montgomery Landline
301-215-#### Chevy Chase, MD Verizon Maryland Montgomery Landline
301-216-#### Gaithersburg, MD Verizon Maryland Montgomery Landline
301-217-#### Rockville, MD Verizon Maryland Montgomery Landline
301-218-#### Bowie, MD Verizon Maryland Prince George's Landline
301-219-#### Bethesda, MD New Cingular Wireless PCS - DC Montgomery Cell Number
301-220-#### Greenbelt, MD Verizon Maryland Prince George's Landline
301-221-#### Bethesda, MD New Cingular Wireless PCS - DC Montgomery Cell Number
301-222-#### Bethesda, MD Cavalier Telephone Mid-atlantic Montgomery Landline
301-223-#### Williamsport, MD Verizon Maryland Washington Landline
301-224-#### Chevy Chase, MD Usa Mobility Wireless Montgomery Cell Number
301-225-#### Glenn Dale, MD Teleport Communications Group - DC Prince George's Cell Number
301-226-#### Hyattsville, MD Verizon Maryland Prince George's Landline
301-227-#### Glen Echo, MD Verizon Maryland Montgomery Landline
301-228-#### Frederick, MD Verizon Maryland Frederick Landline
301-229-#### Glen Echo, MD Verizon Maryland Montgomery Landline
301-230-#### Rockville, MD Verizon Maryland Montgomery Landline
301-231-#### Rockville, MD Verizon Maryland Montgomery Landline
301-232-#### Sandy Spring, MD Mcimetro Access Transmission Services LLC Montgomery Landline
301-233-#### Silver Spring, MD Cellco Partnership DBA Verizon Wireless Montgomery Cell Number
301-234-#### Fort Washington, MD Verizon Maryland Prince George's Landline
301-235-#### Clinton, MD Mcimetro Access Transmission Services LLC Prince George's Landline
301-236-#### Silver Spring, MD Verizon Maryland Montgomery Landline
301-237-#### Beltsville, MD Sprint Spectrum L.p. Prince George's Cell Number
301-238-#### Temple Hills, MD Verizon Maryland Prince George's Landline
301-239-#### Hyattsville, MD Verizon Maryland Prince George's Cell Number
301-240-#### Gaithersburg, MD Verizon Maryland Montgomery Landline
301-241-#### Highfield, MD Verizon Maryland Washington Landline
301-242-#### Brandywine, MD Mcimetro Access Transmission Services LLC Prince George's Landline
301-243-#### Bethesda, MD Verizon Maryland Unknown
301-244-#### Rockville, MD Telcove Operations Montgomery Landline
301-245-#### Bittinger, MD Verizon Maryland Garrett Landline
301-246-#### Nanjemoy, MD Verizon Maryland Charles Landline
301-247-#### Leonardtown, MD New Cingular Wireless PCS - DC Saint Mary's Cell Number
301-248-#### Fort Washington, MD Verizon Maryland Prince George's Landline
301-249-#### Bowie, MD Verizon Maryland Prince George's Landline
301-250-#### Rockville, MD Mcimetro Access Transmission Services LLC Montgomery Landline
301-251-#### Rockville, MD Verizon Maryland Montgomery Landline
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