A new generation of small, highly automated aircraft operating at low altitude are on the horizon, alongside helicopters and general aviation. The coordination and deconfliction of these aircraft operating in primarily urban environments requires new communications, navigation, and surveillance (CNS) infrastructure. The project aims to develop an integrated CNS-as-a-Service model supporting both low-altitude piloted and U-space operations. The project will leverage technologies such as 5G new Radio (NR), modern IP-based software-defined networking, and distributed computing capabilities propose a solution that is flexible and resilient.