Hi @zoommeeting
Thanks for reaching out to the Zoom Developer Forum, I am happy to help here!
This is a great question, allow me some time to ask internally about this and will come back to you with an update!
Best
Elisa
Hi @thuy and @zoommeeting
I’m sorry for not getting back to this post quickly.
But I have confirmed with our Engineering team that the format used for the Abbreviation list is indeed ISO 3166