Check Network Signal & Tower Details Before Placing a Router
Live cellular radio diagnostic tool for Android. Know which tower you are connected to, check 4G TDD Band 40 & 41 availability, and find the perfect spot for your router SIM.
Signal Gauge & Quality
Live RSRP signal dial with Excellent, Good, Fair, or Poor ratings, real-time signal history graph, RSRQ, SINR, RSSI, ASU, and CQI.
TDD Band 40 & 41 Check
Designed specifically to check if 4G TDD Band 40 (2300 MHz) or Band 41 (2500 MHz) towers are reported with signal strength history.
Tower & Cell Details
Shows connected band (B3, B40), frequency, EARFCN/ARFCN, bandwidth, PCI, cell ID, eNB/gNB ID, sector, and distance.
CellMapper & All Cells
Running list of all reported 4G, 5G, 3G, and 2G cells, plus one-tap access to CellMapper maps near your location.
One-Tap Copy & Share
Instantly copy or share full network diagnostic reports via WhatsApp, Telegram, or Email for easy technical support.
Strict Privacy
No internet permission. Everything stays local on your phone. Nothing is ever uploaded or collected in the background.