SpaceX has struck a deal with EchoStar to acquire 50 MHz of exclusive S-band spectrum in the United States and global Mobile Satellite Service (MSS) licenses, paving the way for its next-generation Starlink Direct to Cell constellation.
The agreement strengthens Starlink’s ability to expand its mobile coverage worldwide. With the upgraded system, SpaceX aims to deliver full 5G connectivity to unmodified cell phones and eliminate mobile dead zones worldwide.
Expanding mobile coverage
Starlink’s Direct to Cell service was first launched in early 2024 with satellites designed to connect directly to standard LTE mobile devices. Within days of deployment, engineers demonstrated texting from unmodified phones, followed by video calling. Over the past 18 months, SpaceX has grown the system to more than 600 satellites, which now offer service across five continents. Today, Starlink Direct to Cell is considered the largest 4G coverage provider worldwide, connecting over 6 million users and counting, according to SpaceX in a post.
The constellation integrates with Starlink’s broader fleet of 8,000 satellites via a laser mesh network. Operating at 360 kilometers (224 miles) above Earth, the satellites connect directly to devices without hardware or firmware modifications. The system is already supporting messaging, video calls, navigation, social media apps, and IoT connectivity in remote areas.
Next-generation system
Through its new EchoStar spectrum acquisition, SpaceX plans to develop a second-generation constellation with far greater capacity. The upgraded satellites will leverage SpaceX-designed silicon and advanced phased array antennas to increase throughput by 20x per satellite and increase total system capacity by more than 100x. These enhancements are expected to support full 5G cellular connectivity in remote areas, with performance comparable to terrestrial LTE networks.
Partnerships with major mobile carriers remain central to Starlink’s expansion. Operators including T-Mobile in the United States, Rogers in Canada, KDDI in Japan, and Kyivstar in Ukraine are integrating Direct to Cell services for coverage in rural areas and during emergencies. The service has already provided critical communication during hurricanes, floods, and wildfires, enabling millions of SMS messages and emergency alerts to be delivered when ground networks were unavailable.
