Active Prefixes in Area Code 301

Prefix Primary City Phone Type Company
301-975-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-976-#### Information Provider Landline Numbers Baltimore-washington...
301-977-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-978-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-979-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-980-#### Silver Spring Wireless Numbers Cellco Partnership D...
301-981-#### Laurel Landline Numbers Tw Telecom Of Maryla...
301-982-#### College Park Landline Numbers Verizon Maryland, In...
301-983-#### Bethesda Landline Numbers Verizon Maryland, In...
301-984-#### Rockville Landline Numbers Verizon Maryland, In...
301-985-#### Hyattsville Landline Numbers Verizon Maryland, In...
301-986-#### Chevy Chase Landline Numbers Verizon Maryland, In...
301-987-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-988-#### Hagerstown Landline Numbers Uscoc Of Cumberland,...
301-989-#### Silver Spring Landline Numbers Verizon Maryland, In...
301-990-#### Gaithersburg Landline Numbers Verizon Maryland, In...
301-991-#### Hagerstown Wireless Numbers Sprint Spectrum L.p....
301-992-#### Hagerstown Wireless Numbers Sprint Spectrum L.p....
301-993-#### College Park Landline Numbers Verizon Maryland, In...
301-994-#### Valley Lee Landline Numbers Verizon Maryland, In...
301-995-#### Patuxent River Landline Numbers Verizon Maryland, In...
301-996-#### Washington Zone 3 Wireless Numbers Sprint Spectrum L.p....
301-997-#### Washington Landline Numbers Verizon Maryland, In...
301-998-#### Rockville Landline Numbers Verizon Maryland, In...
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Area Code 301 Introduction

Area Code:301
Country:United States
State/Province:Maryland - MD
Major City:Rockville
Time Zone:Eastern
Average property$188K
Average age 58 y/o
Average assets $75.3K
Population density 12,407 sq mi (32,133 km2)
Population 6,016,447
latitude Longitude:
37° 53′ N to 39° 43′ N / 75° 03′ W to 79° 29′ W
About 301 :
The 301 Area Code (or Area Code 301) is located in the state of MD. Area Code 301 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.89 million unique phone numbers and 12.2 million individuals near the city of Indian Head
Area code 301 was put into service. In 1991 area code 301 was split to form area code 410. In 1997 area codes 301 was overlaid with area code 240.
Major cities or places
Bethesda, MD>Bowie, MD>Chillum, MD>Clinton, MD>College Park, MD>Cumberland, MD>Fairland, MD>Fort Washington, MD>Frederick, MD>Gaithersburg, MD>Germantown, MD>Greenbelt, MD>Hagerstown, MD>Landover, MD>Montgomery Village, MD>North Bethesda, MD>North Laurel, MD>North Potomac, MD>Olney, MD>Oxon Hill-glassmanor, MD>Potomac, MD>Rockville, MD>Silver Spring, MD>South Laurel, MD>St. Charles, MD>Suitland, MD>Waldorf, MD>Wheaton-glenmont, MD>White Oak, MD