Selective broadcast of corrective vehicle positioning information using a hyper-precise-positioning (HPP) proxy is presented herein. A system can obtain satellite navigation correction data; assign respective portions of the satellite navigation correction data to defined geographical regions to facilitate respective point-to-multipoint wireless broadcasts of the respective portions of the satellite navigation correction data to respective vehicles that have been determined to be located within the defined geographical regions; and distribute, via respective signaling planes, broadcast requests comprising the respective portions of the satellite navigation correction data to respective wireless access point devices to facilitate the respective point-to-multipoint wireless broadcasts of the respective portions of the satellite navigation correction data—such satellite navigation correction data facilitating correction of satellite navigation data that has been received by the respective vehicles.