Area Code 771

Area Code 771 is in
Washington, DC

Washington, DC Area Code Overlays
(202 and 771)

Area Code 771 History:


Area code 771 was put into service as an all services overlay of area code 202 on November 9, 2021. Ten digit dialing (area code + seven digit number) is necessary in the 202/771 overlay effective October 9, 2021 because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.