{"input":"5712107439","is_valid_nanp":true,"e164":"+15712107439","formatted":"(571) 210-7439","country_code":"+1","area_code":"571","region":"Virginia","principal_city":"Washington","timezone":"America/New_York","current_local_time":"2026-08-14 09:35:52","note":"An area code only shows where a number is registered, not who is calling. Caller ID can be spoofed, so the code alone is not proof a call is local, safe, or fraudulent.","area_code_url":"https://areacode.fyi/571","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}