The Sona tracking script records the page activity of all the visitors it is able to capture no matter they are located.

Company-level de-anonymization can work for your website visitors around the World. However, person-level de-anonymization is limited to US users only.

If you want to limit the Sona tracking pixel to fire in the US, or any geographical location for that matter, it's possible to leverage geo-location data directly integrated with your website or through an API.