Southern Ontario, Canada is served by area code 289, which was created as an overlay to 905 in 2001. 289 coverage area includes the Niagara Peninsula, Hamilton, Oshawa, and the suburban Toronto area.
Ajax-Pickering, Ancaster, Aurora, Beamsville, Beeton, Bethesda, Binbrook, Bolton, Bowmanville, Bradford, Brampton, Brooklin, Burlington, Caledon East, Caledonia, Campbellville, Castlemore, Cayuga, Clarkson, Cobourg, Colborne, Cooksville, Dundas, Dunnville, Fisherville, Fort Erie, Freelton, Georgetown, Gormley, Grimsby, Hagersville, Hamilton, Keswick, King City, Kleinburg, Malton, Maple, Markham, Milton, Mount Albert, Mount Hope, Newcastle, Newmarket, Newtonville, Niagara Falls, Niagara-On-The-Lake, Nobleton, Oak Ridges, Oakville, Oshawa, Palgrave, Pelham, Port Colborne, Port Credit, Port Hope, Port Perry, Port Robinson, Queensville, Richmond Hill, Ridgeway, Schomberg, South Pickering, St. Catharines-Thorold, Stevensville, Stoney Creek, Stouffville, Streetsville, Sutton, Thornhill, Tottenham, Unionville, Uxbridge, Victoria, Vineland, Waterdown, Welland, Wellandport, West Lincoln, Whitby, Winona, Woodbridge.
| PREFIX | COUNTY | CITY | CARRIER | TYPE |
|---|---|---|---|---|
| 289-813 | Oakville | Oakville | Iristel Inc. | Landline |
| 289-814 | Streetsville | Streetsville | Iristel Inc. | Landline |
| 289-815 | Oakville | Oakville | Iristel Inc. | Landline |
| 289-816 | Burlington | Burlington | Iristel Inc. | Landline |
| 289-817 | Oakville | Oakville | Iristel Inc. | Landline |
| 289-818 | Markham | Markham | Fibernetics Corporation | Landline |
| 289-819 | Richmond Hill | Richmond Hill | Iristel Inc. | Landline |
| 289-820 | Welland | Welland | Telus Integrated Communications | Landline |
| 289-821 | Welland | Welland | Rogers Communications Canada Inc. (Wireless) | Wireless |
| 289-822 | Port Credit | Port Credit | Fido Solutions Inc. | Wireless |
| 289-823 | Welland | Welland | Fido Solutions Inc. | Wireless |
| 289-825 | Clarkson | Clarkson | Telus Integrated Communications | Landline |
| 289-826 | Clarkson | Clarkson | Telus Integrated Communications | Landline |
| 289-827 | Hamilton | Hamilton | Rogers Communications Canada Inc. (Wireless) | Wireless |
| 289-828 | Burlington | Burlington | Fido Solutions Inc. | Wireless |
| 289-829 | Cobourg | Cobourg | Fido Solutions Inc. | Wireless |
| 289-830 | Oshawa | Oshawa | Rogers Communications Canada Inc. (Wireless) | Wireless |
| 289-831 | Bradford | Bradford | Fibernetics Corporation | Landline |
| 289-832 | Maple | Maple | Primus Telecommunications Canada Inc. | Landline |
| 289-833 | Richmond Hill | Richmond Hill | Fido Solutions Inc. | Wireless |
| 289-834 | Oakville | Oakville | Bell Mobility | Wireless |
| 289-835 | Oakville | Oakville | Telus Integrated Communications | Landline |
| 289-836 | Port Colborne | Port Colborne | Telus Integrated Communications | Landline |
| 289-837 | Oakville | Oakville | Telus Integrated Communications | Landline |
| 289-838 | Oakville | Oakville | Bell Mobility | Wireless |
| 289-839 | Georgetown | Georgetown | Telus Mobility | Landline |
| 289-840 | Aurora | Aurora | Primus Telecommunications Canada Inc. | Landline |
| 289-841 | Newmarket | Newmarket | Primus Telecommunications Canada Inc. | Landline |
| 289-842 | Richmond Hill | Richmond Hill | Primus Telecommunications Canada Inc. | Landline |
| 289-843 | Thornhill | Thornhill | Primus Telecommunications Canada Inc. | Landline |
| 289-844 | Unionville | Unionville | Primus Telecommunications Canada Inc. | Landline |
| 289-845 | Woodbridge | Woodbridge | Primus Telecommunications Canada Inc. | Landline |
| 289-846 | Markham | Markham | Primus Telecommunications Canada Inc. | Landline |
| 289-847 | Port Credit | Port Credit | Primus Telecommunications Canada Inc. | Landline |
| 289-848 | Streetsville | Streetsville | Primus Telecommunications Canada Inc. | Landline |
| 289-849 | Clarkson | Clarkson | Primus Telecommunications Canada Inc. | Landline |
| 289-850 | Tottenham | Tottenham | Fibernetics Corporation | Landline |
| 289-851 | Milton | Milton | Bell Canada | Landline |
| 289-855 | Ancaster | Ancaster | Fibernetics Corporation | Landline |
| 289-856 | Oakville | Oakville | Fibernetics Corporation | Landline |
| 289-857 | Thornhill | Thornhill | Fibernetics Corporation | Landline |
| 289-858 | Dundas | Dundas | Fibernetics Corporation | Landline |
| 289-859 | Markham | Markham | Fibernetics Corporation | Landline |
| 289-860 | Hamilton | Hamilton | Comwave Networks | Landline |
| 289-861 | Burlington | Burlington | Primus Telecommunications Canada Inc. | Landline |
| 289-862 | Milton | Milton | Primus Telecommunications Canada Inc. | Landline |
| 289-863 | Oakville | Oakville | Primus Telecommunications Canada Inc. | Landline |
| 289-864 | Brampton | Brampton | Primus Telecommunications Canada Inc. | Landline |
| 289-865 | Malton | Malton | Primus Telecommunications Canada Inc. | Landline |
| 289-866 | Mount Hope | Mount Hope | Fibernetics Corporation | Landline |
| 289-867 | Richmond Hill | Richmond Hill | Comwave Networks | Landline |
| 289-868 | Niagara On The Lake | Niagara On The Lake | Telus Integrated Communications | Landline |
| 289-869 | Oshawa | Oshawa | Comwave Networks | Landline |
| 289-876 | Ridgeway | Ridgeway | Telus Integrated Communications | Landline |
| 289-877 | Hamilton | Hamilton | Rogers Communications Canada Inc. (Wireless) | Wireless |
| 289-878 | Milton | Milton | Telus Integrated Communications | Landline |
| 289-879 | Aurora | Aurora | Telus Mobility | Wireless |
| 289-880 | Hamilton | Hamilton | Telus Mobility | Wireless |
| 289-881 | Oakville | Oakville | Telus Integrated Communications | Landline |
| 289-882 | Southpick | Southpick | Fido Solutions Inc. | Wireless |
| 289-883 | Cooksville | Cooksville | Fido Solutions Inc. | Wireless |
| 289-884 | Unionville | Unionville | Fido Solutions Inc. | Wireless |
| 289-885 | Oakville | Oakville | Fido Solutions Inc. | Wireless |
| 289-886 | Oshawa | Oshawa | Fido Solutions Inc. | Wireless |
| 289-887 | Hamilton | Hamilton | Fido Solutions Inc. | Wireless |
| 289-888 | Oakville | Oakville | Fido Solutions Inc. | Wireless |
| 289-889 | Brampton | Brampton | Fido Solutions Inc. | Wireless |
| 289-890 | Georgetown | Georgetown | Fido Solutions Inc. | Wireless |
| 289-891 | Georgetown | Georgetown | Telus Integrated Communications | Landline |
| 289-892 | Pickering | Pickering | Fido Solutions Inc. | Wireless |
| Phone Number 289-219-2871 |
USAGE Wireless |
City Saint Catharines Thorold |
Operate Read more about who called from 2892192871 |
Update Time Mar-26-2026 |
| Phone Number 289-301-2259 |
USAGE Landline |
City Markham |
Operate Read more about who called from 2893012259 |
Update Time Mar-26-2026 |
| Phone Number 289-791-4511 |
USAGE Landline |
City Markham |
Operate Read more about who called from 2897914511 |
Update Time Mar-26-2026 |
| Phone Number 289-204-2930 |
USAGE Landline |
City Ancaster |
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Update Time Mar-26-2026 |
| Phone Number 289-768-8183 |
USAGE Landline |
City Hamilton |
Operate Read more about who called from 2897688183 |
Update Time Mar-26-2026 |
| Phone Number 289-783-8541 |
USAGE Wireless |
City Saint Catharines Thorold |
Operate Read more about who called from 2897838541 |
Update Time Mar-26-2026 |
| Phone Number 289-789-1102 |
USAGE Landline |
City Unionville |
Operate Read more about who called from 2897891102 |
Update Time Mar-26-2026 |
| Phone Number 289-789-1107 |
USAGE Landline |
City Unionville |
Operate Read more about who called from 2897891107 |
Update Time Mar-26-2026 |
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