Area Code 571

Area Code 571
Post Office City: Dulles, VA
County: Loudoun County County
Timezone: America/New_York
Coordinates: -77.35, 38.92
Area Code: 571

What is the Area Code?

In the United States, the "Area Code" is a numerical prefix used in phone numbers to identify a specific geographic region within the country. These area codes are part of the telephone numbering system and are essential for the proper routing of calls.

The area code typically consists of three digits and precedes the local phone number. For example, in the phone number (212) 555-1234, "212" is the area code that corresponds to a part of New York City.

Functions of the Area Code:

Geographic Identification: Allows the determination of the region or city from which a call originates. Call Routing: Helps telephone service providers direct calls efficiently through their network. Number Distribution: Facilitates the assignment and organization of phone numbers to avoid conflicts and duplications. Billing: Sometimes, call costs can vary depending on the area code, especially for long-distance calls. In summary, area codes are fundamental to the functioning of the telephone system in the United States, ensuring that calls are connected correctly and managed in an orderly manner.

571

Cities and counties within 571 Area Code

Here are the cities and towns for Area Code 571 that the US Post Office accepts. The city listed as the main city is usually where the main post office is located. When sending a letter or package, always include your preferred city to ensure your delivery is as successful as possible

Primary CityAceptable CitiesStateCountyZIPArea codesTimezone
Dulles--Virginia(VA)Loudoun County20102571America/New_York
Dulles--Virginia(VA)Loudoun County20103571America/New_York
Dulles--Virginia(VA)Loudoun County20104571America/New_York
ManassasSudley Spgs, Sudley SpringsVirginia(VA)Prince William County20109703, 571America/New_York
Manassas--Virginia(VA)Manassas City20110703, 571America/New_York
ManassasManassas ParkVirginia(VA)Manassas Park City20111703, 571America/New_York
Manassas--Virginia(VA)Prince William County20112703, 571America/New_York
CentrevilleSully StationVirginia(VA)Fairfax County20120703, 571, 202America/New_York
Centreville--Virginia(VA)Fairfax County20121703, 571America/New_York
Ashburn--Virginia(VA)Loudoun County20149571America/New_York
ChantillyFairfaxVirginia(VA)Fairfax County20153571America/New_York
Gainesville--Virginia(VA)Prince William County20156571America/New_York
Sterling--Virginia(VA)Loudoun County20164571, 703America/New_York
SterlingPotomac FallsVirginia(VA)Loudoun County20165703, 571America/New_York
SterlingDullesVirginia(VA)Loudoun County20166703, 571America/New_York
Sterling--Virginia(VA)Loudoun County20167571America/New_York
Haymarket--Virginia(VA)Prince William County20168571America/New_York
Haymarket--Virginia(VA)Prince William County20169703, 571America/New_York
Herndon--Virginia(VA)Fairfax County20170703, 571America/New_York
HerndonOak HillVirginia(VA)Fairfax County20171703, 571, 202America/New_York
Leesburg--Virginia(VA)Loudoun County20175703, 540, 571America/New_York
LeesburgLansdowneVirginia(VA)Loudoun County20176703, 540, 571America/New_York
Leesburg--Virginia(VA)Loudoun County20178571America/New_York
Dulles--Virginia(VA)Loudoun County20189571America/New_York
RestonHerndonVirginia(VA)Fairfax County20190703, 571America/New_York
HerndonRestonVirginia(VA)Fairfax County20192571America/New_York
RestonHerndon, Hundon, Sallie MaeVirginia(VA)Fairfax County20193571America/New_York
RestonHerndonVirginia(VA)Fairfax County20194703, 571America/New_York
RestonHerndonVirginia(VA)Fairfax County20196571America/New_York
DullesVisa Lottery State DeptVirginia(VA)Loudoun County20199571America/New_York
DhsAlexandria, Arlington, Fairfax, Falls Church, Herndon, Lorton, Mc Lean, Mclean, Reston, Springfield, SterlingVirginia(VA)Fairfax County20598571America/New_York
Annandale--Virginia(VA)Fairfax County22003703, 571, 202America/New_York
DumfriesMontclairVirginia(VA)Prince William County22025571America/New_York
Dunn LoringViennaVirginia(VA)Fairfax County22027703, 571America/New_York
Fairfax--Virginia(VA)Fairfax County22030703, 571America/New_York
Fairfax--Virginia(VA)Fairfax County22031202, 571, 703America/New_York
Fairfax--Virginia(VA)Fairfax County22033571, 703America/New_York
Fairfax--Virginia(VA)Fairfax City22034571America/New_York
Fairfax--Virginia(VA)Fairfax City22036571America/New_York
Fairfax--Virginia(VA)Fairfax City22037571America/New_York
Falls Church--Virginia(VA)Falls Church City22040571America/New_York
Falls ChurchPimmitVirginia(VA)Fairfax County22043703, 571America/New_York
Falls Church--Virginia(VA)Falls Church City22046703, 571America/New_York
Falls Church--Virginia(VA)Falls Church City22047571America/New_York
Great Falls--Virginia(VA)Fairfax County22066703, 571America/New_York
GreenwayMc LeanVirginia(VA)Fairfax County22067571America/New_York
Merrifield--Virginia(VA)Fairfax County22081571America/New_York
Merrifield--Virginia(VA)Fairfax County22082571America/New_York
Herndon--Virginia(VA)Fairfax County22092571America/New_York
AshburnNatl Assn Letter CarriersVirginia(VA)Loudoun County22093571America/New_York
HerndonRestonVirginia(VA)Fairfax County22095571America/New_York
RestonHerndonVirginia(VA)Fairfax County22096571America/New_York
Mc LeanMcleanVirginia(VA)Fairfax County22101202, 703, 571America/New_York
Mc LeanMclean, Tysons, Tysons Corner, West McleanVirginia(VA)Fairfax County22102540, 703, 571, 202America/New_York
West McleanMc Lean, McleanVirginia(VA)Fairfax County22103571America/New_York
Mc LeanMcleanVirginia(VA)Fairfax County22106571America/New_York
Mc Lean--Virginia(VA)Fairfax County22107571America/New_York
Mc Lean--Virginia(VA)Fairfax County22108571America/New_York
Mc Lean--Virginia(VA)Fairfax County22109571America/New_York
Merrifield--Virginia(VA)Fairfax County22118571America/New_York
Merrifield--Virginia(VA)Fairfax County22119571America/New_York
MerrifieldContinental TelephoneVirginia(VA)Fairfax County22120571America/New_York
Newington--Virginia(VA)Fairfax County22122571America/New_York
OaktonViennaVirginia(VA)Fairfax County22124202, 703, 571America/New_York
SpringfieldW Springfield, West SpringfieldVirginia(VA)Fairfax County22152703, 571America/New_York
Springfield--Virginia(VA)Fairfax County22153703, 571America/New_York
Springfield--Virginia(VA)Fairfax County22156571America/New_York
Springfield--Virginia(VA)Fairfax County22158571America/New_York
Springfield--Virginia(VA)Fairfax County22159571America/New_York
Springfield--Virginia(VA)Fairfax County22160571America/New_York
Triangle--Virginia(VA)Prince William County22172703, 571America/New_York
Vienna--Virginia(VA)Fairfax County22180703, 202, 571America/New_York
Vienna--Virginia(VA)Fairfax County22181571, 703America/New_York
ViennaTysons, Tysons CornerVirginia(VA)Fairfax County22182703, 202, 571America/New_York
Vienna--Virginia(VA)Fairfax County22184571America/New_York
ViennaOaktonVirginia(VA)Fairfax County22185571America/New_York
WoodbridgeDale CityVirginia(VA)Prince William County22193703, 571America/New_York
Woodbridge--Virginia(VA)Prince William County22195571America/New_York
Lorton--Virginia(VA)Fairfax County22199571America/New_York
Arlington--Virginia(VA)Arlington County22201202, 703, 571America/New_York
Arlington--Virginia(VA)Arlington County22203202, 703, 571America/New_York
Arlington--Virginia(VA)Arlington County22205703, 571America/New_York
ArlingtonRosslynVirginia(VA)Arlington County22209703, 202, 571America/New_York
Arlington--Virginia(VA)Arlington County22210571America/New_York
Fort MyerFt MyerVirginia(VA)Arlington County22211703, 571America/New_York
Arlington--Virginia(VA)Arlington County22212571America/New_York
Arlington--Virginia(VA)Arlington County22213703, 571America/New_York
Arlington--Virginia(VA)Arlington County22214703, 571America/New_York
Arlington--Virginia(VA)Arlington County22215571America/New_York
Arlington--Virginia(VA)Arlington County22216571America/New_York
Arlington--Virginia(VA)Arlington County22217571America/New_York
ArlingtonVisa LotteryVirginia(VA)Arlington County22218571America/New_York
Arlington--Virginia(VA)Arlington County22219571America/New_York
Arlington--Virginia(VA)Arlington County22222571America/New_York
Arlington--Virginia(VA)Arlington County22223571America/New_York
Arlington--Virginia(VA)Arlington County22225571America/New_York
Arlington--Virginia(VA)Arlington County22226571America/New_York
ArlingtonShared Firm ZipVirginia(VA)Arlington County22229571America/New_York
ArlingtonGannettVirginia(VA)Arlington County22234571America/New_York
Arlington--Virginia(VA)Arlington County22240571America/New_York
Arlington--Virginia(VA)Arlington County22241571America/New_York
Arlington--Virginia(VA)Arlington County22242571America/New_York
Arlington--Virginia(VA)Arlington County22243571America/New_York
Arlington--Virginia(VA)Arlington County22244571America/New_York
Arlington--Virginia(VA)Arlington County22245571America/New_York
Arlington--Virginia(VA)Arlington County22246571America/New_York
Alexandria--Virginia(VA)Alexandria City22313571America/New_York
Alexandria--Virginia(VA)Alexandria City22314202, 703, 571America/New_York
Alexandria--Virginia(VA)Alexandria City22320571America/New_York
AlexandriaFirm ZipVirginia(VA)Alexandria City22321571America/New_York
Alexandria--Virginia(VA)Alexandria City22333571America/New_York
Alexandria--Virginia(VA)Alexandria City22334571America/New_York
Alexandria--Virginia(VA)Alexandria City22336571America/New_York