{"area_code":"337","type":"geographic","status":"active","country":"US","region":"Louisiana","region_code":"LA","principal_city":"Lafayette","cities":["Lafayette","Lake Charles","New Iberia","Opelousas","Sulphur"],"timezone":"America/Chicago","timezone_label":"Central Time","current_local_time":"2026-08-04 16:06:35","ten_digit_dialing":true,"service_type":null,"overlay_codes":[],"nearby_codes":["225","409","985","318","457","504"],"summary":"Area code 337 covers Lafayette and nearby cities including Lake Charles, New Iberia, Opelousas in Louisiana, in the Central Time.","carrier_summary":{"nxx_prefixes":599,"blocks":4310,"wireless_pct":41,"top_carriers":[{"name":"NEW CINGULAR WIRELESS PCS, LLC - GA","blocks":857},{"name":"ONVOY, LLC - LA","blocks":534},{"name":"BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL","blocks":512},{"name":"VOICESTREAM GSM I, LLC","blocks":290},{"name":"CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA","blocks":246},{"name":"METROPCS, INC.","blocks":237}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/337","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}