771 area code
Area code 771 is in the District of Columbia. It covers Washington, Naval Anacost Annex and Washington Navy Yard: 277 ZIP codes in District of Columbia. Local time there is , Eastern Time. In service since 2021 as an overlay: it covers the same area as 202, so a number from there can have either code.
- State
- District of Columbia
- Time zone
- Eastern
- Largest city
- Washington
- Overlays
- 202
- In service since
- 2021
- Rate centres
- 1
- Prefixes assigned
- 71 (710,000 numbers)
Who calls from a 771 number
NANPA records the carrier each block of 771 numbers is assigned to. Of the 705,000 771 numbers assigned, 76% are with cable, internet-calling, business and other carriers (Onvoy, Verizon Business and Teleport Communications (AT&T)); 24% with mobile carriers (AT&T Mobility and Verizon Wireless).
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| Onvoy | Cable, VoIP, other | 32% |
| Verizon Business | Cable, VoIP, other | 13% |
| Teleport Communications (AT&T) | Cable, VoIP, other | 11% |
| Bandwidth | Cable, VoIP, other | 10% |
| AT&T Mobility | Mobile | 9% |
| Verizon Wireless | Mobile | 8% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 771
The 1 place with a telephone rate centre of its own using 771, largest first. Each links to its ZIP codes.
| Place | ZIP codes | Population |
|---|---|---|
| Washington, DC | 271 | 681,294 |
Nearby places using 771
These places have no rate centre of their own in NANPA's records; the nearest one uses 771. Near an area-code boundary that can be wrong for part of a town.
ZIP codes in area code 771
277 ZIP codes in 3 towns, by the town each is mailed to, largest first. Each links to its own page.
- Washington
- 20001, 20002, 20003, 20004, 20005, 20006, 20007, 20008, 20009, 20010, 20011, 20012, 20013, 20015, 20016, 20017, 20018, 20019, 20020, 20022, 20024, 20026, 20027, 20029, 20030, 20032, 20033, 20035, 20036, 20037, 20038, 20039, 20040, 20041, 20042, 20043, 20044, 20045, 20047, 20049, 20050, 20052, 20053, 20055, 20056, 20057, 20058, 20059, 20060, 20061, 20062, 20063, 20064, 20065, 20066, 20067, 20068, 20069, 20070, 20071, 20073, 20074, 20075, 20076, 20077, 20078, 20080, 20081, 20082, 20090, 20091, 20201, 20202, 20203, 20204, 20206, 20207, 20208, 20210, 20211, 20212, 20213, 20214, 20215, 20216, 20217, 20218, 20219, 20220, 20221, 20222, 20223, 20224, 20226, 20227, 20228, 20229, 20230, 20232, 20233, 20235, 20237, 20238, 20239, 20240, 20241, 20242, 20244, 20245, 20250, 20251, 20252, 20254, 20260, 20261, 20262, 20265, 20266, 20268, 20270, 20277, 20289, 20299, 20301, 20303, 20306, 20310, 20314, 20317, 20318, 20319, 20330, 20340, 20350, 20355, 20370, 20372, 20375, 20380, 20389, 20390, 20392, 20393, 20394, 20395, 20401, 20402, 20403, 20404, 20405, 20406, 20407, 20408, 20409, 20410, 20411, 20412, 20413, 20414, 20415, 20416, 20417, 20418, 20419, 20420, 20421, 20422, 20423, 20424, 20425, 20426, 20427, 20428, 20429, 20431, 20433, 20434, 20435, 20436, 20437, 20439, 20440, 20441, 20442, 20444, 20447, 20451, 20453, 20456, 20460, 20463, 20468, 20469, 20470, 20472, 20500, 20501, 20502, 20503, 20504, 20505, 20506, 20507, 20508, 20509, 20510, 20511, 20515, 20520, 20521, 20522, 20523, 20524, 20525, 20526, 20527, 20528, 20529, 20530, 20531, 20533, 20534, 20535, 20536, 20537, 20538, 20539, 20540, 20541, 20542, 20543, 20544, 20546, 20547, 20548, 20549, 20551, 20552, 20553, 20554, 20555, 20557, 20559, 20560, 20565, 20566, 20570, 20571, 20572, 20573, 20575, 20576, 20577, 20578, 20579, 20580, 20581, 20585, 20586, 20590, 20591, 20593, 20594, 20597, 20599, 56901, 56915, 56920, 56933, 56944, 56972
Where 771 numbers are issued
NANPA's rate centres with the most 771 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
WSHNGTNZN1 | Washington | 71 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 771
Where is area code 771?
Area code 771 is in the District of Columbia. It covers Washington, Naval Anacost Annex and Washington Navy Yard: 277 ZIP codes in District of Columbia.
What ZIP codes are in area code 771?
277 ZIP codes, by the town each is mailed to: Washington (271, 20001 to 56972), Naval Anacost Annex (20373), Washington Navy Yard (5, 20374 to 20398). The full list is on this page.
What time zone is area code 771 in?
Eastern time.
Is a 771 number a mobile or a landline?
It can be either. 24% of 771 numbers are assigned to mobile carriers and 0% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
What area codes overlay 771?
202. They cover the same area as 771, so a new number there can be given any of them.
Does a 771 number mean the caller is in the District of Columbia?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 771 call can come from anywhere.
Other area codes in District of Columbia
All 2 District of Columbia area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 771.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/771
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