In Spain we don’t ask for café negro (but reading the comments now I learned that in other spanish speaking countries do), we just ask for coffee (anything else is a modificator) or to remark that we just coffee without anything else we ask for a solo.
But I cannot speak for the whole country, it varies a lot from region to region the names for ordering coffee, maybe in some parts do in fact say café negro.
In Spain we don’t ask for café negro (but reading the comments now I learned that in other spanish speaking countries do), we just ask for coffee (anything else is a modificator) or to remark that we just coffee without anything else we ask for a solo.
But I cannot speak for the whole country, it varies a lot from region to region the names for ordering coffee, maybe in some parts do in fact say café negro.