Ultra Mobile is a T-Mobile MVNO that focuses on offering low-cost plans for those that have a need for international calling and texting. Unlimited global calling and texting are available to over 75 locations on all single-line monthly plans.

In November of 2016, Ultra Mobile was able to improve coverage for its customers by offering Wi-Fi Talk and Text. The feature allows those with select Android phones to be able to place calls and text messages over Wi-Fi in places where T-Mobile’s network coverage is unreliable.