  Prompt neutrino fluxes due to the interactions of high-energy cosmic rays
with the Earth's atmosphere are backgrounds in the search for high-energy
neutrinos of galactic or extra-galactic origin performed by Very Large Volume
Neutrino Telescopes. We summarize our predictions for prompt neutrinos, showing
their basic features as emerging from the calculation in a QCD framework
capable of describing recent charm data from the Large Hadron Collider.
