The map to the right is clickable; click on an area code to go to the page for that code. <imagemap> Image:Area code 202.png|right|The area colored red indicates the geographical region of the District of Columbia, served by area code 202 poly 0 50 49 54 103 84 111 88 101 107 118 130 143 139 179 140 211 188 238 203 260 240 259 248 248 250 255 262 253 357 1 357 Area codes 571 and 703 poly 1 1 0 45 52 48 117 84 109 109 121 127 180 136 199 164 254 112 345 204 264 286 258 358 420 358 420 1 Area codes 240 and 301 desc bottom-left </imagemap> North American telephone area code 202 is the area code for Washington, D.C., and is coextensive with the District of Columbia. It was one of the area codes originally assigned in October, 1947. As of 2006, there are no plans to split or overlay the area code, as the North American Numbering Plan Administration estimates the current supply of 202 numbers sufficient at least to the year 2020[1]. For a local call between two telephones in the District, 7-digit dialing is permitted, although the call will be connected if the area code is dialed. There is, of course, no provision for long-distance calls within the area code. Originally, area code 202 was an unpublished alternate area code for the nearby suburbs in Maryland and Virginia, which were officially in area codes 301 and 703, respectively. That arrangement allowed local calls throughout the metropolitan area to be dialed using only seven digits. For example, a telephone number in Kensington, Maryland, that was officially 301-949-xxxx could be dialed as 202-949-xxxx as well. However, on October 1, 1991, to address number exhaustion, the ability to dial the suburbs using area code 202 ended, and local calls between area codes required 10-digit dialing (area code + number, leading "1" is not required but is usually not forbidden).
| District of Columbia Area Code: 202 | ||
|---|---|---|
| North: 240/301 | ||
| West: 571/703 | area code 202 | East: 240/301 |
| South: 571/703 | ||
| State of Maryland Area Codes: 240, 301, 410, 443 | ||
| Commonwealth of Virginia Area Codes: 276, 434, 540, 571/703, 757, 804 | ||
See also
- List of NANP area codes
- North American Numbering Plan
- North American Numbering Plan Administration
- NANPA Area Code Map of District of Columbia
- Whitepages Area code Map

