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
301-325 Montgomery Silver Spring, MD Cellco Partnership DBA Verizon Wireless
301-326 Montgomery Silver Spring, MD Omnipoint Communications Cap Operations
301-327 Prince Georges Upper Marlboro, MD Comcast Phone Of Northern Maryland
301-328 Montgomery Silver Spring, MD Comcast Phone Of Northern Maryland
301-329 Prince Georges Greenbelt, MD Cavalier Telephone Mid-atlantic
301-330 Montgomery Gaithersburg, MD Verizon Maryland
301-331 Washington Hagerstown, MD New Cingular Wireless PCS - DC
301-332 Montgomery Silver Spring, MD New Cingular Wireless PCS - DC
301-333 Prince Georges Capitol Heights, MD Verizon Maryland
301-334 Garrett Oakland, MD Verizon Maryland
301-335 Montgomery Bethesda, MD New Cingular Wireless PCS - DC
301-336 Prince Georges Capitol Heights, MD Verizon Maryland
301-337 Montgomery Gaithersburg, MD Mci Worldcom Communications
301-338 Allegany Cumberland, MD Idt America Corp
301-339 Montgomery Rockville, MD Cavalier Telephone Mid-atlantic
301-340 Montgomery Rockville, MD Verizon Maryland
301-341 Prince Georges Hyattsville, MD Verizon Maryland
301-342 Saint Marys Patuxent River, MD Verizon Maryland
301-343 Prince Georges Capitol Heights, MD Sprint Spectrum L.p.
301-344 Prince Georges Greenbelt, MD Verizon Maryland
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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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