{"area_code":"437","type":"geographic","status":"active","country":"CA","region":"Ontario","region_code":"ON","principal_city":"Toronto","cities":["Toronto"],"timezone":"America/Toronto","timezone_label":"Eastern Time","current_local_time":"2026-08-04 19:51:26","ten_digit_dialing":true,"service_type":null,"overlay_codes":["416","647"],"nearby_codes":["647","365","289","742","905","416"],"summary":"Area code 437 covers Toronto in Ontario, in the Eastern Time.","carrier_summary":{"nxx_prefixes":549,"blocks":549,"wireless_pct":82,"top_carriers":[{"name":"ROGERS COMMUNICATIONS CANADA INC.","blocks":166},{"name":"BELL CELLULAR, INC.","blocks":136},{"name":"TELE-MOBILE COMPANY DBA TELUS MOBILITY","blocks":57},{"name":"IRISTEL INC. - ON","blocks":54},{"name":"FIDO SOLUTIONS INC. - QC","blocks":47},{"name":"FREEDOM MOBILE INC.","blocks":44}],"per_number":"https://areacode.fyi/api/v1/carrier/{number}"},"canonical_url":"https://areacode.fyi/437","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}