Spoilers for Agents of S.H.I.E.L.D and Avengers: Age of Ultron below.
In Agents of S.H.I.E.L.D., Coulson enacts Theta Protocol and sends Helicarrier no. 64 to help the Avengers.
In Avengers: Age of Ultron, we see the helicarrier arrive in Sokovia and carry out the evacuation of the city.
So far, this helicarrier has not been seen again, in either the films or television series.
Do we know its current location and owner?