There are no known operational scramjets. Actually I rather doubt that there are any operational SCRJs, known or unknown.
Now, ramjets....
Start searching things like HyFly and X-51A for the status of SCRJs. In the known world (I'm not sure the black world is much farther ahead) the SCRJ world is progressing towards airborne test vehicles - as opposed to ground rigs - that run scramjets for a length of time that would be associated with a practical missile profile... 500 miles or a few minutes.