This disclosure describes techniques that enable optimizing licensed and unlicensed spectrum allocation within a service area of a base station node. More specifically, a spectrum allocation controller is described that is configured to identify, within a service area of a base station node, one or more available spectrum to facilitate the transmission of network traffic within the service area. The spectrum allocation controller may further determine network traffic that occurs in non-overlapping segments of the service area. In this way, network traffic within each segment may be allocated to a combination of available spectrum.