I'm not sure if there were additional barriers to blue-boxing out of SA, but I know people went through SA... "In the Esquire article, Captain Crunch narrates

I'm not sure if there were additional barriers to blue-boxing out of SA, but I know people went through SA... "In the Esquire article, Captain Crunch narrates excitedly to his interviewer Ron Rosenbaum the process by which he connected a single long-distance call via switching stations across Asia, Europe, South Africa, South America and the East coast until he reached a specific telephone in California." Depends how much chance you have to lose yourself in an internal SA call to one or more SxS COs before the overseas hop, you could be pretty hard to catch. But, if there wasn't a lot of international traffic they could just snoop on the overseas hop and figure out who you were.