Ontario Area Codes
Ontario has 18 area codes. Browse all area codes, cities, and phone prefixes.
18 area codes
0 cities
Ontario Area Codes
226
London
Eastern
249
Sudbury
Eastern
289
Hamilton
Eastern
343
Ottawa
Eastern
365
Hamilton
Eastern
382
London
Eastern
416
Toronto
Eastern
437
Toronto
Eastern
519
London
Eastern
548
London
Eastern
613
Ottawa
Eastern
647
Toronto
Eastern
683
Sudbury
Eastern
705
Sudbury
Eastern
742
Hamilton
Eastern
753
Ottawa
Eastern
807
Kenora
Eastern / Central
905
Hamilton
Eastern
Cities in Ontario
No city data available for Ontario yet.