District of Columbia has 2 active area codes as of 2026, covering the state through a mix of original 1947 assignments, geographic splits, and modern overlays. This guide walks through the full list, which regions each code serves, the order they came online, and where new codes are most likely to land next.
The Short Answer
District of Columbia currently has 2 active area codes in service. The count reflects a combination of population growth, the rise of mobile lines, and the way modern numbering allocates blocks — every line activated, whether a cellphone, a business desk line, a VoIP number, or a connected device, consumes a slot in the pool.
District of Columbia has roughly 691,310 residents as of the most recent estimates. That population, combined with the spread of mobile and VoIP lines per household, determines how often new area codes are needed.
The Full List of District of Columbia Area Codes
The active area codes serving District of Columbia are listed below, in numerical order. Where a code is an overlay or a split-off from an earlier code, that relationship is noted.
How District of Columbia’s Area Codes Grew Over Time
District of Columbia received its first area code, 202, when the North American Numbering Plan launched in 1947. That single code initially covered the entire state, and subsequent splits and overlays narrowed it over the decades that followed.
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Browse District of Columbia Area Codes →- 1947 — 202 established in October 1947 as one of the original North American area codes, covering all of the District of Columbia. After New Jersey's 201, the District was the second numbering plan area assigned.
- 2021 — 771 added as an overlay of 202 across the entire District. A permissive 10-digit dialing period ran from April 10 to October 9, 2021, and the first 771 central office codes were assigned on November 8 and 9, 2021.
What’s Next for District of Columbia Area Codes
With 202 approaching exhaustion in late 2022, NANPA announced the 771 overlay in October 2020 to add capacity across the District. The 2021 overlay activation gave the District a fresh numbering pool, and NANPA’s most recent NPA exhaust projections show no relief planned for either 202 or 771 within the next-36-months window. Because 771 is a young overlay with substantial unassigned inventory, no additional area code is expected for the District in the near term.
Frequently Asked Questions
How many area codes does District of Columbia have right now?
District of Columbia has 2 active area codes in service across the territory it covers, including any overlays that share geography with an older code.
What is the oldest area code in District of Columbia?
202 is the oldest active area code in District of Columbia, assigned in 1947 when the North American Numbering Plan launched. It remains in service today, though its geographic footprint has typically been reduced by subsequent splits and overlays.
What is the newest area code in District of Columbia?
The most recent area code addition to District of Columbia was 771, activated in 2021. New phone lines provisioned in its service area are increasingly drawn from this code as older overlays approach exhaustion.
Why does District of Columbia need so many area codes?
Population growth combined with the proliferation of mobile lines, business direct-dial numbers, VoIP services, and connected devices has exhausted older codes faster than the original 1947 plan anticipated. Each new area code adds roughly 7.9 million additional phone numbers to the regional pool.
How many area codes does Washington, D.C. have?
Washington, D.C. has two area codes: 202, the original code dating to 1947, and 771, an overlay added in 2021. Both cover the entire District, so 10-digit dialing is required for all local calls.
Is 202 still the main area code for D.C.?
Yes. 202 remains the primary and most widely held area code in the District, carried by most long-tenured residents, businesses, and federal offices. The 771 overlay shares the same territory and supplies most newly assigned numbers.
What is the 771 area code?
771 is an overlay area code that covers all of Washington, D.C., the same geography as 202. It was activated in 2021 to relieve the dwindling supply of 202 numbers, and new phone lines in the District are increasingly drawn from it.
Do D.C. area codes cover Maryland and Virginia?
No. The 202 and 771 codes serve only the District itself. The surrounding suburbs use separate codes: 301 and 240 in Maryland, and 703 and 571 in Northern Virginia. Much of the metro area still shares a single local calling zone despite the different codes.
Ready to Get a Number in District of Columbia?
We carry available District of Columbia numbers right now across multiple area codes. Order directly in 202 or 771 — a one-time fee, no monthly charges, with pricing From $150 depending on the digit pattern and memorability of the number. Prefer help choosing? Call us at (212) 580-2000.
Related Reading
- Maryland Area Codes: All 6 Active Codes Explained (2026)
- Virginia Area Codes: All 10 Active Codes by Region (2026)
- New York Area Codes: All 22 Active Codes by Region (2026)
- Area Code 202: Washington, District of Columbia Coverage & History
- How Many Area Codes Are in the US
- How Do Area Codes Work
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