{"area_code":"579","type":"geographic","status":"active","country":"CA","region":"Quebec","region_code":"QC","principal_city":"Granby","cities":["Granby","Joliette","Saint-Jérôme","Saint-Hyacinthe","Sainte-Thérèse","Longueuil","Saint-Jean","Chomedey","Sorel","Laval-Est","Laval-Ouest","Pont-Viau"],"timezone":"America/Toronto","timezone_label":"Eastern Time","current_local_time":"2026-08-04 19:52:08","ten_digit_dialing":true,"service_type":null,"overlay_codes":["354","450"],"nearby_codes":["354","450","514","263","438","468"],"summary":"Area code 579 covers Granby and nearby cities including Joliette, Saint-Jérôme, Saint-Hyacinthe in Quebec, in the Eastern Time.","carrier_summary":{"nxx_prefixes":644,"blocks":644,"wireless_pct":7,"top_carriers":[{"name":"TELUS COMMUNICATIONS (QUEBEC) INC. - QC","blocks":122},{"name":"FIBERNETICS CORPORATION","blocks":103},{"name":"VIDEOTRON LTD.","blocks":72},{"name":"IRISTEL INC. - ON","blocks":66},{"name":"DISTRIBUTEL COMMUNICATIONS LIMITED - QC","blocks":56},{"name":"ISP TELECOM, INC.","blocks":50}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/579","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}