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Area Codes for Washington, DC
There are several area codes actively in use in the Washington, DC metropolitan area, including: 202, 703, 301. Washington, DC proper uses only the 202 area code. Nearby, northern Virginia uses 703 and 571 area codes and Maryland uses 301 and 240.
In Washington, DC, area codes are always included in written telephone numbers and area codes must be dialed for all calls, even for local calling. All US phone numbers are 10-digits total, including a 3-digit area code and a 7-digit local subscriber number.
Washington, DC / Northern Virginia / Maryland area code information:
Washington, DC area codes:
202, 703, 301
Area codes are used to route phone calls to a specific geographic area within a country. All area codes in the United States are exactly 3-digits long.
In the past, a given region often had just one area code. Nowadays, many cities and towns in denser urban areas have 2 or more area codes. Washington, DC as yet does not, but overlays are in place in both northern Virginia and Maryland.
To make an inbound international call (or domestic long distance call) to a Washington, DC landline or mobile phone, you need to dial the appropriate 3-digit area code, followed by a 7-digit local subscriber number.
If you don't have a fully specified 10-digit phone number, including area code, you will not be able to complete an inbound call.
Area Codes Used In & Near Washington, DC
There are several area codes used in Washington, DC and surrounding areas. As yet, Washington, DC has not implemented any 'overlay' area codes, but northern Virginia and Maryland have. Overlay area codes provide additional phone number capacity without disturbing existing phone number assignments.
Here are the area codes in use for greater Washington, DC metro area.
Washington, DC Area Codes
See maps and other area code listings below for further information.
Area Codes for Towns in Washington, DC Area
Here are the area codes for the 20 or so largest cities and towns in and around Washington, DC (in alpha order).
Lookup Washington, DC, Northern Virginia, and Maryland Area Codes
To find the area codes (or ZIP codes) used in the Washington, DC area, please use the WhitePages.com search widgets. The first widget looks up area codes and ZIP codes by town. The second widget does reverse lookup by area code or ZIP code.
Results will open in new page.
Washington, DC Area Code Maps
The following maps show area codes for Washington, DC and nearby areas of Virginia and Maryland.
Maps may not be completely up to date. Check other map links below if this appears out of date.
City Codes vs. Area Codes
In some cases, area codes may be referred to as city codes. However, a 'city code' more correctly refers to the codes used to designate airports and other geographic locations. These codes are issued under the United Nation's UN/LOCODE system and/or the IATA airport coding system. The city code for Washington, DC is WAS.
Other Area Code Information
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