Maybe not to us, but certainly to each other, or among themselves. Very likely, they're using some form of electromagnetic communications. It makes good sense. It's cheap, and quick, and universally available. If so, their microwaves have been zipping around since before our star first sputtered to life.
Photons are the fastest of all spaceships.
Theirs may be falling on our heads even as we speak. We know how to listen. We have for decades. Modern radiotelescopes are capable of sensing microwave radiation of intelligent origin, from anywhere in the Milky Way galaxy. With enhancements in technology, we may soon be able to haul in signals from the other hundred billion galaxies as well.