The frame is equipped with a 3G/4G SIM card already installed and set up.
In the USA: Cincinnati Bell, Commnet, AT&T, Viaero, Commnet, Limitless, Alaska Wireless, Indigo Wireless, Tampnet, Sprint, US Cellular, Union Telecom, Verizon, T-Mobile USA.
In UK: O2, Hutchison 3G, Vodafone
In Canada: Bell Mobility, Rogers Communications, Rogers Communications Canada Inc, Sasktel, Telus, Videotron
In Australia: Optus, Telstra, Vodafone
The frame always connects to the antenna with the best signal.
The frame works in 2G, 3G as well as in 4G.