Cell tower data includes signal strength to multiple towers. The FTC quotes an accuracy of 3/4 sq mile using 3 cell towers, with more accuracy possible in urban areas with more towers: https://transition.fcc.gov/pshs/911/Apps%20Wrkshp%202015/911...
https://www.researchgate.net/publication/221568410_Accuracy_... shows a median error of 55m is possible with real-world data from LA.
Cell tower data includes signal strength to multiple towers. The FTC quotes an accuracy of 3/4 sq mile using 3 cell towers, with more accuracy possible in urban areas with more towers: https://transition.fcc.gov/pshs/911/Apps%20Wrkshp%202015/911...
https://www.researchgate.net/publication/221568410_Accuracy_... shows a median error of 55m is possible with real-world data from LA.