This is list of providers what support on CellMapper App automatic band detection (Estimated Band) when connected to our server (internet required) or on web map.
If your provider missing on this list, you need record band information with your device. Mostly Android 7+ (Huawei, Samsung's and Mediatek phones after Android 8+ ) support band reading on new Cell ID API. Please check support on Tested Phones page. When you are recorded 10 - 50 tower, contact to support.