State directory / District of Columbia
US number directory / District of Columbia
District of Columbia
area codes
District of Columbia has 2 geographic area codes in the NANPA snapshot, with 202 the earliest listed (1947).
2geographic area codes
in this reference
in this reference
Earliest listed202 · 1947
Standard timeET
Overlays in this stateYes — see code notes
Major city starting points
Washington, DC (federal district): 202, 771.
| City | Reference role | Codes to check |
|---|---|---|
| Washington, DC | Federal district | 202, 771 |
City reference · 2026-10-25
Codes, cities & coverage
District of Columbia's active territorial overlay complexes are 202/771.
| Code | Region / major cities named in the reference | Introduced | Active overlay complexes |
|---|---|---|---|
| 202 | Washington, D.C. (all) | 01-Jan-1947 | 202/771 |
| 771 | Washington, D.C. (all) | 09-Nov-2021 | 202/771 |
NANPA dates & overlays · 2026-10-25
Wikipedia geography · 2026-10-25 · CC BY-SA 4.0
City lookup notes
Time zones
District of Columbia spans 1 standard-time offset in the state reference: ET.
| Standard offset | Region | Daylight saving |
|---|---|---|
| UTC−05:00 ET | Eastern | Yes |