{"area_code":"443","type":"geographic","status":"active","country":"US","region":"Maryland","region_code":"MD","principal_city":"Baltimore","cities":["Baltimore","Annapolis","Arbutus","Arnold","Bel Air North","Bel Air South","Carney","Catonsville","Columbia","Crofton","Dundalk","Edgewood","Eldersburg","Ellicott City","Essex","Glen Burnie","Lochearn","Middle River","Milford Mill","Odenton","Parkville","Perry Hall","Pikesville","Randallstown","Reisterstown","Salisbury","Severn","Severna Park","South Gate","Towson","West Elkridge"],"timezone":"America/New_York","timezone_label":"Eastern Time","current_local_time":"2026-08-04 16:01:20","ten_digit_dialing":true,"service_type":null,"overlay_codes":["410","667"],"nearby_codes":["410","667","227","240","301","202"],"summary":"Area code 443 covers Baltimore and nearby cities including Annapolis, Arbutus, Arnold in Maryland, in the Eastern Time.","carrier_summary":{"nxx_prefixes":786,"blocks":7672,"wireless_pct":45,"top_carriers":[{"name":"OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC","blocks":1191},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD","blocks":1087},{"name":"NEW CINGULAR WIRELESS PCS, LLC - DC","blocks":782},{"name":"PAETEC ITEL, LLC","blocks":767},{"name":"ONVOY, LLC - MD","blocks":483},{"name":"BANDWIDTH.COM CLEC, LLC - MD","blocks":463}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/443","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}