Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for improving geographic targeting of digital content. In some implementations, a targeting request that identifies a target geographic region is received. Groups of geographic regions that each include the target geographic region and at least another geographic region are identified. Combined targeting accuracies are computed for the groups of geographic regions. One or more of the groups of geographic regions are selected based on their combined targeting accuracies being higher than a targeting accuracy for the target geographic region. Data describing the selected one or more groups of geographic regions is provided for output in response to the targeting request.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for improving geographic targeting of digital content. One of the methods includes receiving a targeting request that identifies a target geographic region; identifying one or more groups of geographic regions that each include at least two geographic regions, including the target geographic region, wherein the one or more groups of geographic regions are identified based on respective combined targeting accuracies, the respective combined targeting accuracy of each of the one or more groups being higher than a targeting accuracy for the target geographic region; and providing data describing the identified one or more groups of geographic regions in response to the targeting request.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving a targeting request that identifies a target geographic region; identifying one or more groups of geographic regions that each include at least two geographic regions, including the target geographic region, wherein the one or more groups of geographic regions are identified based on respective combined targeting accuracies, the respective combined targeting accuracy of each of the one or more groups being higher than a targeting accuracy for the target geographic region; and providing data describing the identified one or more groups of geographic regions in response to the targeting request.

Abstract: Methods and systems for location correction are provided. In one exemplary method, a first routing identifier of a first location associated with a location correction may be identified. The first location and the first routing identifier may be stored. A second routing identifier associated with a location request may be identified. A second location based at least in part on a comparison of the first routing number and the second routing number may be predicted. Finally, the location request may be responded to with the second location.