Virginia, United States
Eastern Time
3:16 AM
Area Code
571
State / Province
Virginia
Country
United States
Time Zone
Eastern Time
Area code 571 covers 17 cities and communities across Virginia, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+15715550100">+15715550100</a><a href="tel:+15715550199">+15715550199</a>Area code 571 is a North American Numbering Plan (NANP) telephone area code assigned to Virginia, United States. It is one of 7 area codes serving Virginia. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 571 is an active North American Numbering Plan (NANP) area code, currently assigned to Virginia, United States. It is safe to answer or dial calls using this area code.
Area code 571 covers 17 cities and communities in Virginia, including Arcola, Braddock, Dale City, Dulles, Dulles Metro, and 12 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 571 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 571 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Virginia, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 571 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 571 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 571 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +15715550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.