The 202 area code is located in Washington, DC, the capital of the United States. It exclusively serves the entire District of Columbia, which is situated in the Eastern Time Zone. The 202 area code was one of the original area codes created in 1947 and covers neighborhoods including Georgetown, Chinatown, Capitol Hill, and Logan Circle within Washington, DC.

Additionally, "202" can refer to Bundesstraße 202, a German federal road that runs west to east through Schleswig-Holstein, Germany, connecting towns such as Sankt Peter Ording, Rendsburg, Kiel, and Oldenburg in Holstein.

Furthermore, US Route 202 is a U.S. highway that extends approximately 627 miles from New Castle, Delaware, to Bangor, Maine, passing through eight states.

Please clarify if you were referring to the telephone area code, the German federal road, or the U.S. highway named 202.