A dynamically-addressable communications system provides either a list or set of dynamic addresses to selected receivers for broadcasting information packets from a transmission source to the selected receivers. Each dynamic address provided in the set is associated with a particular information packet designated to be received by the particular selected receivers to which that dynamic address is provided. Additionally, each broadcasted information packet includes at least one dynamic address identical to the dynamic address provided to its associated selected receivers. Thus, the broadcasted information packet which includes such identical dynamic address may be received by its associated selected receivers, which then modify the dynamic address list. Preferably, after each selected receiver receives a broadcasted information packet, the dynamic address associated with that particular received information packet is removed from the list of dynamic addresses provided to that selected receiver at least temporarily.