Systems, apparatus and methods to perform hypothesis localization are presented. An access point (AP) is associated with one specific area, such as an LCI (location context identifier). Each specific area defines area information comprising an identifier, a list of APs, and a map of the specific area. Each specific area, and associated APs from the list of APs, is hypothesized as the specific area containing a mobile device. For each hypothesized area, a mobile device trajectory is formed using just listed APs from that area, to form a plurality of mobile device trajectories. After evaluating the resulting plurality of mobile device trajectories, a selection is made of the best fitting mobile device trajectory.