742 area code is the telephone area code of the North American Numbering Plan (NANP) for western part of Toronto, Ontario, Canada. The area code was created in 2021.
| Area Code | 742 |
|---|---|
| Major City | Hamilton |
| Service Date | 10/16/2021 |
| Time Zone | Eastern |
| Overlay Complex | 289/365/742/905 |
| Location | Ontario (ON) |
| Country | Canada |
Some of the cities served by area code 742 include Hamilton, Mississauga, Vaughan, Richmond Hill, Ajax, Aurora, Brampton, Burlington, Caledon and more.
| Area code | Place | Province |
|---|---|---|
| 742 | Ajax | Ontario |
| 742 | Alberton | Ontario |
| 742 | Allanburg | Ontario |
| 742 | Alton | Ontario |
| 742 | Ancaster | Ontario |
| 742 | Ashburn | Ontario |
| 742 | Aurora | Ontario |
| 742 | Baldwin | Ontario |
| 742 | Baltimore | Ontario |
| 742 | Beamsville | Ontario |
| 742 | Beeton | Ontario |
| 742 | Belfountain | Ontario |
| 742 | Bewdley | Ontario |
| 742 | Binbrook | Ontario |
| 742 | Blackstock | Ontario |
| 742 | Bolton | Ontario |
| 742 | Bond Head | Ontario |
| 742 | Bowmanville | Ontario |
| 742 | Bradford | Ontario |
| 742 | Brampton | Ontario |
| 742 | Brougham | Ontario |
| 742 | Burlington | Ontario |
| 742 | Caesarea | Ontario |
| 742 | Caistor Centre | Ontario |
| 742 | Caledon | Ontario |
| 742 | Caledon East | Ontario |
| 742 | Caledon Village | Ontario |
| 742 | Caledonia | Ontario |
| 742 | Campbellcroft | Ontario |
| 742 | Campbellville | Ontario |
| 742 | Campden | Ontario |
| 742 | Canfield | Ontario |
| 742 | Carlisle | Ontario |
| 742 | Castleton | Ontario |
| 742 | Cayuga | Ontario |
| 742 | Cedar Valley | Ontario |
| 742 | Cheltenham | Ontario |
| 742 | Claremont | Ontario |
| 742 | Cobourg | Ontario |
| 742 | Colborne | Ontario |
| 742 | Concord | Ontario |
| 742 | Copetown | Ontario |
| 742 | Courtice | Ontario |
| 742 | Crystal Beach | Ontario |
| 742 | Dundas | Ontario |
| 742 | Dunnville | Ontario |
| 742 | East Gwillimbury | Ontario |
| 742 | Fenwick | Ontario |
| 742 | Fisherville | Ontario |
| 742 | Fonthill | Ontario |
| 742 | Fort Erie | Ontario |
| 742 | Freelton | Ontario |
| 742 | Georgetown | Ontario |
| 742 | Gilford | Ontario |
| 742 | Goodwood | Ontario |
| 742 | Gores Landing | Ontario |
| 742 | Gormley | Ontario |
| 742 | Grafton | Ontario |
| 742 | Grassie | Ontario |
| 742 | Greenbank | Ontario |
| 742 | Greenwood | Ontario |
| 742 | Grimsby | Ontario |
| 742 | Hagersville | Ontario |
| 742 | Haldimand County | Ontario |
| 742 | Hamilton | Ontario |
| 742 | Hampton | Ontario |
| 742 | Hannon | Ontario |
| 742 | Harwood | Ontario |
| 742 | Holland Landing | Ontario |
| 742 | Hornby | Ontario |
| 742 | Inglewood | Ontario |
| 742 | Innisfil | Ontario |
| 742 | Jacksons Point | Ontario |
| 742 | Jerseyville | Ontario |
| 742 | Jordan Station | Ontario |
| 742 | Kendal | Ontario |
| 742 | Keswick | Ontario |
| 742 | Kettleby | Ontario |
| 742 | Kilbride | Ontario |
| 742 | King City | Ontario |
| 742 | Kleinburg | Ontario |
| 742 | Leaskdale | Ontario |
| 742 | Limehouse | Ontario |
| 742 | Locust Hill | Ontario |
| 742 | Loretto | Ontario |
| 742 | Lowbanks | Ontario |
| 742 | Lynden | Ontario |
| 742 | Maple | Ontario |
| 742 | Markham | Ontario |
| 742 | Millgrove | Ontario |
| 742 | Milton | Ontario |
| 742 | Mississauga | Ontario |
| 742 | Moffat | Ontario |
| 742 | Mount Albert | Ontario |
| 742 | Mount Hope | Ontario |
| 742 | Nestleton Station | Ontario |
| 742 | Newcastle | Ontario |
| 742 | Newmarket | Ontario |
| 742 | Newtonville | Ontario |
| 742 | Niagara Falls | Ontario |
| 742 | Niagara On The Lake | Ontario |
| 742 | Nobleton | Ontario |
| 742 | Norval | Ontario |
| 742 | Oakville | Ontario |
| 742 | Orono | Ontario |
| 742 | Oshawa | Ontario |
| 742 | Palgrave | Ontario |
| 742 | Pickering | Ontario |
| 742 | Port Colborne | Ontario |
| 742 | Port Hope | Ontario |
| 742 | Port Perry | Ontario |
| 742 | Port Robinson | Ontario |
| 742 | Prince Albert | Ontario |
| 742 | Queenston | Ontario |
| 742 | Queensville | Ontario |
| 742 | Richmond Hill | Ontario |
| 742 | Ridgeville | Ontario |
| 742 | Ridgeway | Ontario |
| 742 | River Drive Park | Ontario |
| 742 | Roches Point | Ontario |
| 742 | Roseneath | Ontario |
| 742 | Sandford | Ontario |
| 742 | Schomberg | Ontario |
| 742 | Seagrave | Ontario |
| 742 | Selkirk | Ontario |
| 742 | Sharon | Ontario |
| 742 | Sherkston | Ontario |
| 742 | Smithville | Ontario |
| 742 | St Anns | Ontario |
| 742 | St Catharines | Ontario |
| 742 | St Davids | Ontario |
| 742 | Stevensville | Ontario |
| 742 | Stoney Creek | Ontario |
| 742 | Stouffville | Ontario |
| 742 | Sutton West | Ontario |
| 742 | Terra Cotta | Ontario |
| 742 | Thornhill | Ontario |
| 742 | Thorold | Ontario |
| 742 | Tottenham | Ontario |
| 742 | Unionville | Ontario |
| 742 | Uxbridge | Ontario |
| 742 | Vaughan | Ontario |
| 742 | Vineland | Ontario |
| 742 | Vineland Station | Ontario |
| 742 | Virgil | Ontario |
| 742 | Wainfleet | Ontario |
| 742 | Waterdown | Ontario |
| 742 | Welland | Ontario |
| 742 | Wellandport | Ontario |
| 742 | West Flamborough | Ontario |
| 742 | Whitby | Ontario |
| 742 | Whitevale | Ontario |
| 742 | Willow Beach | Ontario |
| 742 | Woodbridge | Ontario |
| 742 | Zephyr | Ontario |