Techniques are described for collecting and providing information regarding mobile network performance. In one example, a device includes a mobile device interface configured to receive data sets from mobile devices, each of the data sets comprising a geographic position value identifying a geographic position of a corresponding mobile device and a signal quality value representative of signal quality for the corresponding mobile device at the geographic position, a computer-readable storage medium configured to store the data sets, a request interface configured to receive a request for signal quality data at a requested geographic position, and means for providing an aggregate location value representative of an average signal quality at a location including the requested geographic position, wherein the aggregate signal quality value comprises an aggregation of signal quality values of the data sets that also have geographic position values contained within the location.