{"input":"8473204531","is_valid_nanp":true,"e164":"+18473204531","formatted":"(847) 320-4531","country_code":"+1","area_code":"847","region":"Illinois","principal_city":"Northbrook","timezone":"America/Chicago","current_local_time":"2026-08-14 12:21:34","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/847","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}