The EN 301 549 adoption map shows where it is used, which includes many places outside Europe.
Hidde de Vries (@hdv@front-end.social) is a web enthusiast from Rotterdam, The Netherlands. He currently works on accessibility standards for the Dutch government (views his own) and is in the W3C's AB. Previously, he worked for Mozilla, W3C/WAI, national and local governments, Sanoma Learning and others as a freelancer. Hidde is a public speaker (all 92 talks). In his free time, he works on a coffee table book covering the video conferencing apps of our decade.