Cuba has long had its own country code: .CU.
But most companies didn’t view this domain as a priority.
But be aware that this domain isn’t cheap. I’ve seen prices ranging from $800 to $1,100, so only larger companies will see this is an impulse buy.
But if you can get it, I think it’s wise to do so. It’s far cheaper to buy a domain at retail price then to have to buy it from a squatter later on.