To call a mobile phone in Canada from United States use the following dialing code format: 1 + The Number Click here to search for another mobile country code.
The Ontario, Canada area code chart below gives you the necessary information for calling Ontario cities. For international dialing instructions to Ontario, Canada, use our drop down boxes at the top of this page or check out our easy-to-use country code search tool.
We hope Country Calling Codes has helped you make your international call from United States to the state of Ontario, Canada. Why not bookmark this page, then tell a friend how easy it is to find international country codes and area codes at CountryCallingCodes.com!