{"area_code":"354","type":"geographic","status":"active","country":"CA","region":"Quebec","region_code":"QC","principal_city":"Valleyfield","cities":["Valleyfield","Sainte-Victoire","Châteauguay","Longueuil","Joliette","Rigaud","Hemmingford","Saint-Jérôme","Farnham","Saint-Lambert","Boucherville","Saint-Thomas-d'Aquin"],"timezone":"America/Toronto","timezone_label":"Eastern Time","current_local_time":"2026-08-04 19:54:31","ten_digit_dialing":true,"service_type":null,"overlay_codes":["450","579"],"nearby_codes":["450","579","514","263","438","468"],"summary":"Area code 354 covers Valleyfield and nearby cities including Sainte-Victoire, Châteauguay, Longueuil in Quebec, in the Eastern Time.","carrier_summary":{"nxx_prefixes":65,"blocks":66,"wireless_pct":5,"top_carriers":[{"name":"COGECO CONNEXION INC.","blocks":30},{"name":"IXICA COMMUNICATIONS, INC.","blocks":23},{"name":"IRISTEL INC. - ON","blocks":4},{"name":"ISP TELECOM, INC.","blocks":4},{"name":"TELE-MOBILE COMPANY DBA TELUS MOBILITY","blocks":2},{"name":"COOPTEL","blocks":2}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/354","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}