Various aspects are disclosed herein for detection of mobile devices. Detection of mobile devices can be localized to an environment that is radio frequency enclosed. Within this environment, any packages can be scanned for the presence of mobile devices and for the interrogation of information from such mobile devices, such as the mobile device number and mobile device equipment information. The environment can contain an antenna for communicating with any mobile devices within the environment and a receiver component configured to receive information from any contacted mobile device. Based on this information, a determination can be made whether to validate a contacted mobile device or to take any alternative action.