DX understands country names. When in doubt I use country names before old Adam 12 phonetics. Foe some reason with this call I only have a problem with the zed, hence zanzibar is what I usually utter. It throws some domestic ops off at first, as does being read back as w7zu. Not sure which layer of the atmosphere is responsible for this phenomenon. Undoubtedly the same layer that had people on cw copying kk7f for my old call kk7ue. No matter how I spaced it out.