{"input":"5395499556","is_valid_nanp":true,"e164":"+15395499556","formatted":"(539) 549-9556","country_code":"+1","area_code":"539","region":"Oklahoma","principal_city":"Tulsa","timezone":"America/Chicago","current_local_time":"2026-08-15 04:35:33","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/539","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}