Starlink, Elon Musk's satellite internet venture under SpaceX, is making moves that suggest it's thinking bigger than just beaming internet from space. The company filed a trademark application back in October that came to light this week, and it's pretty telling about where things might be headed.

What's in the Trademark Filing

The trademark application with the USPTO covers the name "STARLINK MOBILE," and the description is where things get interesting. According to the filing, the mark would be used for "two-way real-time transmission of voice, audio, video and data by means of wireless telecommunications devices and satellite networks." But here's the kicker: it also explicitly mentions "cellular personal communication services." That's carrier language.

Musk Already Dropped Hints About Carrier Ambitions

This shouldn't come as a complete surprise if you've been paying attention. Back in September, Musk floated the idea that SpaceX could potentially buy cellphone carriers down the road. He also talked about building satellites specifically designed to work with smartphones and even hinted at Starlink-enabled devices.

SpaceX already has a partnership with T-Mobile US Inc. (TMUS) to bring direct-to-cell technology to subscribers. That deal would let customers make continuous video calls, send messages, and use data services through Starlink's satellite network—no traditional cell tower required.

Building Out the Infrastructure Through Deals

The company's been busy on the deal-making front too. SpaceX recently inked a spectrum agreement with EchoStar Corp (SATS) worth $2.6 billion, following EchoStar's acquisition of AWS-4 and H-block spectrum licenses in a massive $17 billion transaction. Under this arrangement, HughesNet, EchoStar's satellite internet service, will refer its customers to SpaceX.

There's also an international angle. SpaceX signed a deal with Ukrainian telecommunications company Kyivstar Group Ltd. (KYIV) to provide direct-to-cell technology. That agreement marks two firsts: it's the first time the technology will be offered across two markets, and it makes Kyivstar the first European carrier to offer direct-to-device satellite connectivity to its users.

Whether Starlink actually becomes a full-fledged mobile carrier or just continues expanding its satellite-based connectivity partnerships remains to be seen. But this trademark filing suggests the company wants to keep its options open.