Area Code 301

301 is the North American Telephone Area Code For Maryland in United States.
District of Maryland area codes: 301
Country United States
State/Province Maryland
Major City Baltimore
Time Zone Eastern (UTC-05:00)

Phone directory with area code 301

Prefix County Primary City Company
301-345 Prince Georges Greenbelt, MD Verizon Maryland
301-346 Montgomery Silver Spring, MD New Cingular Wireless PCS - DC
301-347 Montgomery Chevy Chase, MD Verizon Maryland
301-348 Montgomery Kensington, MD Mci Worldcom Communications
301-349 Montgomery Poolesville, MD Verizon Maryland
301-350 Prince Georges Capitol Heights, MD Verizon Maryland
301-351 Montgomery Silver Spring, MD Cellco Partnership DBA Verizon Wireless
301-352 Prince Georges Bowie, MD Verizon Maryland
301-353 Montgomery Gaithersburg, MD Verizon Maryland
301-354 Montgomery Rockville, MD Teleport Communications America - DC
301-355 Montgomery Gaithersburg, MD Verizon Maryland
301-356 Prince Georges Laurel, MD Vdl DBA Global Telecom Brokers
301-357 Prince Georges Mount Rainier, MD Cellco Partnership DBA Verizon Wireless
301-358 Prince Georges Upper Marlboro, MD Level 3 Communications
301-359 Allegany Westernport, MD Verizon Maryland
301-360 Frederick Frederick, MD Verizon Maryland
301-361 Prince Georges Laurel, MD Tw Telecom Of Maryland LLC
301-362 Prince Georges Laurel, MD Verizon Maryland
301-363 Montgomery Damascus, MD Level 3 Communications
301-364 Prince Georges Hyattsville, MD Mci Worldcom Communications
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There are 775 prefixes, In the code area, the major cities are Aspen Hill, MD;Bethesda, MD;Bowie, MD;Chillum, MD;. The major city is Baltimore.

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