Just out of curiosity asking that would it be possible (at least in theory) for commercial cargo airline to operate A400M?
To my knowledge A400M has civil certification so does it mean that any airline could buy that aircraft? It may not make sense financially, but just thinking that there could be small market for this kind of special commercial operations.
In addition to the registration issues (though these may be normal add-ons for types which plan to fly commercial cargo) - the plane wasn't really designed for this in my opinion.
Just about everything that makes the A400M such a capable and appealing aircraft is its performance envelope within a tactical military / "peace-keeping" role. The key is "tactical" though.
You've got a design optimized around a huge array of redundancy, sensors, "excessive" performance/power, she's got cameras everywhere, HUDs, designed around a complete refueling system, etc.
A cargo carrier requires exactly NONE of that ^^^ ...but would still have to pay for a lot of it (in the initial R&D / cost of the aircraft itself) even if it's all stripped out.
I think it could do it, and do it well - but it would also be immensely expensive and rather pointless. As cool as it might be, do you need a fully-loaded commercial cargo plane to stop in 2500'? No way.
Lots of old jet cargo conversions could probably do it better. Heck you could probably get TWO lightly-used A300-600F's (with a good negotiator, and if you could find them lol) for the price of a new A400M. They'd carry more, be faster, cheaper to operate, and use less fuel. The only advantage of an A400M cargo would be short-field stuff, and the cargo market isn't even remotely large enough to justify the price difference.