Detects if your mobile communication is being intercepted by checking multiple heuristics, including: checking if the current public IP is in the range of your telecom; checking traceroute internal IPs; tracking cell IDs and their coordintes. If not, it's an indication of a cell-site simulator/IMSI catcher/malicious femtocell.
Source code available at: https://github.com/Glamdring/wiretap-detector