This dataset consists of latency and signaling measurements collected during controlled SIMBox detection experiments on LTE networks. Data was gathered using dedicated smartphones and SIMBox devices (Hybertone, Portech) acquired specifically for the study, in both indoor and outdoor scenarios across various signal conditions. Experiments include authentication latency under different algorithms (Milenage, TUAK, XOR), static attenuation tests, and IP-level interaction captures. No user-identifiable information is present, as the study did not involve real users. Data is provided as log files, CSVs, and analysis notebooks.