771 Area Code — District of Columbia
771 is a North American Numbering Plan area code for District of Columbia, the United States. It covers about 681,294 people in 3 towns and 277 ZIP codes, including Washington, Naval Anacost Annex and Washington Navy Yard.
| Field | Value |
|---|---|
| Area code | 771 |
| Country | United States (+1) |
| State / province | District of Columbia |
| Type | Shares its towns with 202 |
| Time zone | Eastern |
| Population covered | 681,294 |
| Towns covered | 3 |
| ZIP codes | 277 |
| Approx. centre | 38.896, -77.022 |
Where area code 771 is used
Area code 771 is assigned to District of Columbia, the United States, inside the North American Numbering Plan. Numbers in the code are written (771) NXX-XXXX at home and +1 771 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 202. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 771
The 3 towns below are the largest in the 771 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Washington | District of Columbia | 680,911 | 271 |
| Naval Anacost Annex | District of Columbia | 383 | 1 |
| Washington Navy Yard | District of Columbia | — | 5 |
Counties covered
| County | ZIP codes |
|---|---|
| District of Columbia | 277 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 771
- Within North America: 771 + 7-digit number (771-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 771, then the 7-digit number — for example 00 1 771 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 771?
771 is a North American Numbering Plan area code assigned to District of Columbia, the United States. It covers about 681,294 people in 3 towns.
Is 771 a US or Canadian area code?
771 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 771 in?
Area code 771 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.