[hackandthink]

fourty

(1945 - 1949 it was split in 4 occupation zones)

[Someone]

If you ignore Berlin (which, I think, kept its four occupation zones) it were first four, three from January 1, 1947, and two from from August 1, 1948 (https://en.wikipedia.org/wiki/Bizone)

[hackandthink]

thanks