Format phone number to add country code

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21

I would like the solution for just adding the +1 to the contact phone number.

22

Hi there, we receive numbers from an internaional contact base, is there a way to format the numbers and assign the country code to them? For example if the contact is US based, it adds a +1, and when the contact is UK based it ads the +47, but then also determine from which country they are in order to amend accordingly?

*The HubSpot phone number contact property does not currently allow us to include the country code verifier in the form submission.