District of Columbia area codes
- Area codes in
- 2
- State
- District of Columbia
- Local time
- Eastern Time
District of Columbia is served by 2 area codes, from 202 in 1947 to 771 in 2021. 1 of them are overlays, added as older codes filled up.
Updated 28 July 2026
All area codes in District of Columbia
District of Columbia is served by 2 area codes. 202 is the oldest, in service since 1947; 771 is the newest, activated in 2021.
District of Columbia area code map
District of Columbia sits in the Eastern Time zone, with its 2 codes spread across the state.
District of Columbia area codes by city
These are the District of Columbia cities served by more than one area code, or whose code also covers a wider area.
Washington
Overlay codes and dialling rules in District of Columbia
1 of District of Columbia’s 2 area codes are overlays — a second code laid over an existing footprint instead of splitting it. Wherever an overlay operates, local calls require the full ten-digit number.
Spam call reports in District of Columbia
These District of Columbia area codes drew the most reports to the FTC in the 30 days to 28 July 2026. The figures describe numbers displaying each code, which caller ID spoofing can fake.
Most reported District of Columbia area codes · last 30 days
| Code | Primary city | Reports |
|---|---|---|
| 202 | Washington | 822 |
| 771 | Washington | 336 |
A number listed here may itself be a spoofing victim rather than the caller. These are unverified consumer reports.
Source: FTC Do Not Call Reported Calls Data, unverified consumer reports, retrieved 28 July 2026. Request a correction.
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How many area codes does District of Columbia have?
District of Columbia has 2 area codes: 202, 771.
What is the main area code for Washington?
The main area code for Washington is 202.
Which District of Columbia area code is oldest?
Area code 202 is the oldest in District of Columbia, in service since 1947.
Do I need to dial ten digits in District of Columbia?
Yes, anywhere an overlay operates. 1 of District of Columbia’s codes are overlays, and ten-digit dialling is required for local calls in those areas.
Which District of Columbia area code gets the most spam calls?
Area code 202 (Washington) drew the most reports of any District of Columbia code in the 30 days to 28 July 2026, with 822 numbers reported.