A method for scalable and secure vehicle to everything communications may include receiving telematics data from a plurality of vehicles and tracking the vehicles within a window which is centered based on the telematics data. The position of the window may be determined based on positions of the vehicles. The method may include dividing the vehicles within the window into partitions having sizes based on a maximum number of vehicles within the partitions, and determining a metric representing a suitability of communications between the vehicles in the window.