{"input":"4065060406","is_valid_nanp":true,"e164":"+14065060406","formatted":"(406) 506-0406","country_code":"+1","area_code":"406","region":"Montana","principal_city":"Billings","timezone":"America/Denver","current_local_time":"2026-10-25 11:11:17","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/406","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-10-21"}