{"area_code":"353","type":"geographic","status":"active","country":"US","region":"Wisconsin","region_code":"WI","principal_city":"Madison","cities":["Madison","Janesville","Beloit","Fitchburg","North La Crosse","Sun Prairie"],"timezone":"America/Chicago","timezone_label":"Central Time","current_local_time":"2026-08-04 15:11:17","ten_digit_dialing":true,"service_type":null,"overlay_codes":["608"],"nearby_codes":["608","262","414","779","815","274"],"summary":"Area code 353 covers Madison and nearby cities including Janesville, Beloit, Fitchburg in Wisconsin, in the Central Time.","carrier_summary":{"nxx_prefixes":13,"blocks":64,"wireless_pct":16,"top_carriers":[{"name":"ONVOY, LLC - WI","blocks":43},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI","blocks":8},{"name":"HD CARRIER LLC","blocks":3},{"name":"WAVENATION, LLC","blocks":2},{"name":"T-MOBILE USA, INC.","blocks":2},{"name":"AHOI LLC","blocks":2}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/353","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}