Differentiating between them and stingrays would be difficult, especially since the baseband chips in your phone are proprietary technology that can lie to the host OS (iOS, Android, etc).
However there are already projects for real-time mapping of cell towers on a national basis, which is a good start, but they will always be a step behind the US Government (for example).
http://en.wikipedia.org/wiki/Cell_on_wheels
Differentiating between them and stingrays would be difficult, especially since the baseband chips in your phone are proprietary technology that can lie to the host OS (iOS, Android, etc).
However there are already projects for real-time mapping of cell towers on a national basis, which is a good start, but they will always be a step behind the US Government (for example).
Additional reading:
http://en.wikipedia.org/wiki/Mobile_cell_sites