Call Ottawa from the United States

To make an international call to Ottawa, ON from the United States, please follow the dialing steps shown below.

Because Canada and the US both use the same telephone numbering system, dialing a number in Canada is the same as dialing another number in the US. The per minute rates may vary, but the dialing procedure is the same. This applies whether you are calling Ottawa from New York, Los Angeles, Chicago, Philadelphia, or any other US location.

When dialing Ottawa from the USA, it makes no difference whether you are calling from a US landline or mobile phone - the dialing procedure is the same (although your rates may vary).

As well, when dialing to Canada, it also doesn't matter if you are calling to a Ottawa landline phone or a Ottawa mobile phone - both types of numbers have the same format and the dialing procedure is the same. Again, rates may vary depending on your plan.

If you are using a calling card, prepaid plan, and other types of services, additional or different dialing steps may be required. As well, extra charges may apply beyond per minute rates, especially when calling to mobile phones in Canada. Please check with your provider for details.

For further information:

Phone Number Formats to Call Ottawa from the USA

From the US, dialing a number in Canada is the same as dialing another number in the US. This is because Canada and the United States both use the same telephone numbering system called the North American Numbering Plan.

As in the United States, all Canada phone numbers are 10-digits long and include a 3-digit area code and 7-digit local subscriber number. This is true for both mobile phones and landline phones.

Increasingly in Canada, the same region may have multiple area codes. Local subscriber numbers are unique within an area code. Please check here for more information on Ottawa area codes.

Like US numbers, Canada phone numbers may be written to include a leading ' 1 '. This ' 1 ' can serve as either the Canada country code for inbound international calls or as a national direct code for national long distance dialing in Canada.

If the Ottawa phone number you have does not contain the full 10-digit phone number, then you'll need to double check to find the correct number.

To make an international phone call to Ottawa from the US, you need to dial a phone number formatted as follows:

Call Ottawa Landline Phone from the USA

 1   aaa  nnn nnnn
country
code
3-digit
area code
7-digit
landline number

Call Ottawa Mobile Phone from the USA

 1   aaa  nnn nnnn
country
code
3-digit
area code
7-digit
mobile number

Click here for more on Ottawa landline vs. mobile phone numbers.

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Dialing Steps to Call Ottawa from the USA

To call a Ottawa landline or mobile phone number from the United States, follow this simple dialing procedure.

1. Dial Canada country code: + 1 

If your Ottawa destination phone number starts with a ' 1 ' - e.g., 1 613 454 8180, then this serves as the country code.

2. Dial a 10-digit Ottawa phone number

To reach a Ottawa landline number or a Ottawa mobile phone, dial a 10-digit number as follows:

a. Dial a 3-digit Ottawa area code:  aaa 

b. Dial a 7-digit local subscriber number: nnn nnnn

The main Ottawa area codes are 613, 343, 819 - more Ottawa area codes

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Lookup a Ottawa phone number
Ottawa dialing instructions

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