Oshawa Area Codes, Ontario, Canada
How to call Oshawa, Ontario?
Oshawa has 2 area codes. To call Oshawa you need to dial the Canada country code (+1) and one of the following area codes:
289 905How to know if I'm receiving calls from Oshawa, Ontario?
You are receiving calls from Oshawa when the phone number starts with one of the following combinations:
1-289 1-905Other area codes in Canada
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