Been searching online, can't find a definitive answer. My son's college roommate is staying with us all summer, he's here on a student visa. He's very interested in Amateur Radio, but I wasn't entirely sure if he can get a US call. He's fluent in English, and very technically skilled. He could easily pass the tests through to Extra. My son is already licensed, it would be cool for them to both be licensed. Thanks for any factual advice!