According to https://support.fairphone.com/hc/en-us/articles/202005103 FairPhone does not ship to United States, and according to https://support.fairphone.com/hc/en-us/articles/360047326452 "When it comes to the United States and Canada, 4G(LTE) will not always work..."
The phone and parts can likely still be obtained over eBay or similar.
Has anybody here tried to use Fairphone in the US, and if so, what was your experience, and with which carrier?