Your iPhone might soon have zero dead zones thanks to a new carrier joint venture

AT&T, Verizon and T-Mobile plan a satellite-focused joint venture for direct-to-device coverage.

The effort targets rural and underserved areas with weak or no terrestrial network service.

The carriers say the deal is not final yet and still needs agreements and approvals.

If completed, it could help close dead zones and expand mobile coverage across the U.S.