202 Area Code: Washington, D.C., Its 771 Overlay and Dialing Rules

Where is area code 202?

202 was one of the original area codes of 1947, assigned to the District of Columbia. Its footprint is unusually simple. NANPA's planning letter for the 771 overlay shows the whole District as a single rate center, "Washington Zone 1", with no Maryland or Virginia territory in it. The code ends where the District ends.

That clarity is often lost in the wider Washington area, where local calls have crossed three jurisdictions for decades. In May 1990 The Washington Post reported that from 1 October that year, local calls between the District, Maryland and Virginia would need the area code — calls that had until then been dialed without it — while staying local for billing. D.C. residents kept seven-digit dialing for calls within the District until 2021.

D.C. changes its clocks like the states around it: the Uniform Time Act treats the District as a State for time purposes, and it hasn't opted out of daylight saving time.

Is 202 a country code?

No. 202 is an area code inside country code 1, not a country code of its own. The confusion is common enough that searches for 202 often use words like "telephone prefix" or "country code", which suggests many people aren't sure where the code sits in a full international number. The US is in country code 1; 202 comes after it. Egypt's country code, according to the ITU's list of country codes, is 20 — so a number written +20 2… belongs to Egypt, while a Washington number is written +1 202….

Your exit code depends on the country you're calling from; on a mobile phone the + sign works everywhere. Within the US and Canada, drop the exit code and dial 1 + 202 + the number. The punctuation changes nothing: (202) 555-0100, 202-555-0100, 1-202-555-0100 and +1 202 555 0100 are one number written four ways.

How did D.C. get a second code?

When 202 ran low on prefixes, D.C. chose an overlay rather than a split, and the timetable is well documented:

1. Aug 2020

   202 in jeopardy

   NANPA began rationing new 202 prefixes to three a month from 3 August 2020, with final jeopardy procedures from 1 September.

2. Sep 2020

   Overlay ordered, 771 assigned

   The Public Service Commission of the District of Columbia (PSC) approved an all-services overlay in Order No. 20627, Formal Case No. 1165, on 16 September. NANPA assigned 771 and the PSC announced it on 22 September 2020.

3. Apr 2021

   Ten digits allowed

   From 10 April 2021, D.C. callers could dial local calls with seven or ten digits.

4. Oct 2021

   Ten digits required

   From 9 October 2021, seven-digit local calls stopped completing.

5. Nov 2021

   771 in service

   771 prefixes could be activated from 9 November 2021 — but only once 202 prefixes are used up.

That last condition, set out in NANPA's planning letter, makes 771 a reserve rather than an equal partner — which is the main way D.C.'s overlay differs from most.

The overlay bought a lot of time. NANPA's October 2024 analysis projected the 202/771 area to run out in the second quarter of 2058; its April 2026 analysis pushed that to the third quarter of 2088. Long-range numbering forecasts swing this much, so the useful conclusion is simply that D.C. isn't expected to need a third code soon.

How do you dial a D.C. number?

The overlay changed neither what counts as a local call nor its price, the PSC said.

For organisations with desk phones, the 2021 switch meant seven-digit speed dials, alarm diallers and PBX routing rules had to be updated. Our guide to how area codes affect call routing and dial plans covers what to check. If you manage phone lines across multiple US cities, MCC Business Phone handles number assignment and call routing across overlay areas.

Can you still get a 202 number?

Usually, yes. D.C.'s overlay works differently from most: NANPA's planning letter allows 771 prefixes to be activated only once 202 prefixes are used up, so a new District line is still normally numbered 202 rather than 771.

What that does not tell you is which prefixes an individual carrier still holds. Numbers are issued from a carrier's own inventory, so the code on a new line is decided there rather than by the forecast — and the forecast itself is distant. NANPA's April 2026 analysis puts the 202/771 area's exhaust in the third quarter of 2088.

Is a call from a 202 number a scam?

Not by itself, but the code proves nothing. Real D.C. offices and people use 202, and so do impersonators. The FTC warns that a Washington, D.C. area code can make a call look convincing even though caller ID can be faked, which the FCC calls spoofing. A 202 number says the number was assigned in the District. It doesn't say the caller is there.

If an unexpected call claims to come from a federal agency:

• Hang up and check for yourself. The FCC's advice is to call the number on the agency's own website or on your statement, not one the caller gave you.
• Don't press a button to "stop the calls". The FCC says to hang up instead.
• Watch how they want paying. The FTC says no government agency will demand a wire transfer or gift cards.
• Report it. The FTC takes reports at ReportFraud.ftc.gov, and the FCC has its own complaint centre.

None of this tells you whether a particular number is genuine. Only the agency can.

If your organisation dials out from 202

Two separate things decide what the called party sees. Whether the calling number survives the carriers between you and the handset is one. How the terminating network scores the call is the other — short calls, high volume from a single number and low answer rates all feed the analytics behind a warning label, and a label attached to a number does not clear because you changed route.

Both are route questions rather than dial-plan questions. CLI vs NCLI routes covers what decides whether your number arrives at all, and buying USA CC routes covers the US-specific part for outbound campaigns.

Which codes surround the District?

NANPA's 2020 overlay map labels 301, 410 and 703 around the District; it predates 227 and doesn't show 667. For Dallas, Denver, Phoenix and the East Bay, see the other US area code guides — including 469 (Dallas), 510 (East Bay), 480 (Phoenix) and 720 (Denver).

202 area code FAQ

Sources

1. NANPA — Planning Letter 547: 202/771 all-services overlay, with rate center map (22 October 2020; archived copy)
2. D.C. PSC — New 771 area code announced (22 September 2020)
3. D.C. PSC — New dialing procedure for customers with the 202 area code (April 2021)
4. NANPA — 202 interim jeopardy procedures (3 August 2020; archived copy)
5. NANPA — 202 final jeopardy procedures (20 August 2020; archived copy)
6. NANPA — Area code (NPA) database, file dated 16 September 2026
7. NANPA — 2024-2 NPA exhaust analysis (October 2024; archived copy)
8. NANPA — 2026-1 NPA exhaust analysis (April 2026)
9. ITU — List of ITU-T E.164 assigned country codes
10. Maryland PSC — The new 227 area code arrives 14 June 2023
11. The Washington Post — More dialing in store for local callers (4 May 1990; archived copy)
12. 15 U.S.C. 267 — Definition of State for the Uniform Time Act
13. FCC — Caller ID spoofing
14. FTC — Government imposter scams (July 2018)
15. FTC — How to avoid a government impersonation scam