See your mobile network, and where it really comes from. Inspect your live connection, map signal coverage as you move, log a whole drive test, and hunt down the true position of the cell tower you are on. Then export it all to Google Earth.
Thank you for looking into CNA. Whether you are simply curious or a seasoned network engineer, CNA lets you investigate the radio conditions in an area or along a route: where are the signal holes, where is coverage excellent, where does your phone hand over between towers unexpectedly, and which frequencies and bands is it actually using right now?
CNA gives you the tools to see all of this, visualise it on a live map, and share the results as Google Earth overlays or plain CSV for your own analysis. It supports GSM, UMTS, LTE and 5G NR, and its logging and hunting tools keep running as a background service while you use other apps, or even with the screen off.
And did you know some cells reach more than 40 km? With CNA's tower hunt you can walk or drive one down to within tens of metres, using only the timing information your own phone already exchanges with the network.
Everything starts from five clearly labelled buttons. A status strip at the top shows your current mode, and the three-dot menu (top right) opens Preferences and Info.
The top strip tells you whether you are in free mode, with your remaining cell-tower-location lookups, or in Pro mode, where lookups are unlimited under a fair-use policy and every tool is unlocked.
The five buttons below each open one of CNA's tools. Two are always free: the live Geographical and Spectrum views of your current connection. The three logging and hunting tools are part of CNA Pro, with a one-month free trial.
Pick any tool below to jump straight to its detailed guide.
Screenshots on this site were collected with a Google Pixel 7a, which reports the modem status in unusually rich detail. What your own phone shows depends on how much its modem exposes to Android.
Each button opens a focused tool. Follow the links for screenshots, worked examples and the settings that apply.
Your position and the connected tower on a live map, with the full technical detail of the link between them.
Every band and carrier your connection uses, laid out across the downlink and uplink radio spectrum.
Paint a colour-coded signal-strength map as you move, and export it to Google Earth in RSRP or RSRQ.
Record every tower connection along a route and replay it on an interactive map afterwards.
Walk or drive down the true location of your serving tower from its timing advance.
What each mode includes, the fair-use policy, pricing and the one-month free trial.
The two current-connection views are always free. The coverage, route-logging and hunting tools are part of CNA Pro. Start with a one-month free trial and cancel any time during it at no cost.
▶ Get it on Google Play