Welcome to the community forum.
https://www.fairphone.com/en/legal/fairphone-4-extended-warranty-terms-and-conditions/
“1.7 Fairphone’s Extended Warranty service is valid within the following territories: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France Métropolitaine (excluding oversea territories), Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Monaco, The Netherlands (excluding Bonaire, Saba and St. Eustatius), Norway, Poland, Portugal (excluding Azores and Madeira), Romania, San Marino, Slovakia, Slovenia, Spain (excluding Canary Islands, Ceuta and Melilla), Sweden, Switzerland, United Kingdom (excluding the Channel islands).”
So, there are non-EU countries in Europe which are included, but this doesn’t help the US or Canada for now. The same list of countries is applied to the general Fairphone 4 warranty …
https://www.fairphone.com/en/legal/fairphone-4-warranty/
" 3.1 Fairphone’s Warranty service is provided to customers located in continental European territories of: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France Métropolitaine (excluding oversea territories), Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Monaco, The Netherlands (excluding Bonaire, Saba and St. Eustatius), Norway, Poland, Portugal (excluding Azores and Madeira), Romania, San Marino, Slovakia, Slovenia, Spain (excluding Canary Islands, Ceuta and Melilla), Sweden, Switzerland, United Kingdom (excluding the Channel islands)."
… for now …
“3.2 Please be advised that the geographical coverage of Fairphone and the subsequent Warranty service may be subject to expansion. Any changes will be communicated here.” (<- This link also provides some hints on getting or handling Fairphone stuff outside of the listed countries.)
Forum resources which might help …
fairphoneangels (community volunteers trying to help users, there’s one listed in Ottawa currently).
https://forum.fairphone.com/t/fairphone-owners-in-the-usa-fp2-fp3-fp4/5083
https://forum.fairphone.com/t/canadian-fairphoners/17991
Perhaps you can add your experience to those North American forum topics, especially which network provider you are with and in which area, this info is always sought after and welcome 
.