Echoing that a VPN is probably a more sustainable solution (especially since whitelisting certain countries here or there seems like a workload nightmare), an incomplete list can be found on the Freezing Saddles website. If you scroll out on the map on the website, you can see where people have recorded rides today. Besides Mexico, it looks like we have someone in the UK, plus of course the Belgium-based der Bierpuncheur. (There’s also someone in Guam, but that’s not out of “country” so should be OK, right?)