Key Takeaways
- Starlink’s connectivity business has scale, profitability, and access to substantial investment capital.
- Terrestrial mobile networks retain large advantages in spectrum, signal strength, and urban capacity.
- Partnerships may offer Starlink a more economical route to mobile growth than replacing national carriers.
Starlink Is Moving Beyond Satellite Broadband
Starlink began as a broadband service for homes, businesses, aircraft, ships, and customers beyond the reach of dependable terrestrial networks. Its next commercial challenge is much larger: extending satellite connectivity directly to mobile phones and competing for a portion of the global wireless market.
A September 15, 2026 Reuters Breakingviews analysis argues that established US carriers can no longer dismiss Starlink as a specialized rural service. SpaceX has the satellites, capital, subscriber base, and public-market valuation needed to pursue a broader telecommunications strategy.
Starlink reportedly serves approximately 12 million active internet customers. Its network uses roughly 10,000 satellites and already supports users in locations where conventional towers are unavailable or uneconomical.
Scale gives Starlink advantages that earlier satellite-mobile ventures lacked. SpaceX designs and launches its own satellites, controls its launch schedule, operates a global ground network, and can spread development costs across residential, enterprise, mobility, government, and defense customers.
The company is no longer trying to prove that low Earth orbit satellite broadband works. It is trying to determine how much of the wider communications market the network can serve profitably.
Connectivity Has Become SpaceX’s Financial Engine
SpaceX’s public securities filings provide a clearer view of Starlink’s economic importance. The company reported $18.7 billion in consolidated revenue for 2025, with its connectivity segment, driven primarily by Starlink, generating approximately $11.4 billion.
Reuters reported that the division containing Starlink produced more than half of SpaceX’s $12.5 billion in revenue during the opening six months of 2026. Breakingviews described it as the company’s profitable operating unit, an important distinction given the heavy spending associated with Starship and SpaceX’s other development programs.
A profitable connectivity business can support new satellites, spectrum purchases, ground infrastructure, and customer equipment. It also gives SpaceX greater freedom to price aggressively or tolerate lower margins in a new service category.
Traditional telecommunications companies face different financial constraints. AT&T, Verizon, and T-Mobile maintain nationwide terrestrial networks, finance spectrum purchases, support retail operations, and return capital to shareholders. Reuters estimated that the three carriers collectively generated approximately $350 billion in annual revenue, but their growth rates remain far below Starlink’s.
The comparison should not be interpreted as proof that Starlink can replace them. It shows that Starlink has grown large enough to influence their investment decisions, regulatory positions, and partnership strategies.
Spectrum May Matter More Than Satellites
Satellites cannot deliver mobile service without access to suitable radio frequencies. Spectrum determines how much data a network can carry, how signals propagate, what equipment customers need, and where a service can operate legally.
SpaceX expanded its spectrum position through a reported $17 billion acquisition of licenses from EchoStar. Reuters estimated that SpaceX held approximately 65 megahertz of mid-band spectrum, compared with more than 200 megahertz at Verizon and AT&T and roughly 600 megahertz at T-Mobile.
Those figures are not directly interchangeable because licenses cover different frequencies, geographic areas, and permitted uses. They illustrate the size of the gap Starlink would need to address before operating like a full terrestrial carrier.
The Federal Communications Commission is considering additional spectrum access for satellite broadband and continues to develop rules for direct-to-device services. Regulatory decisions will influence interference protections, power limits, international coordination, and the conditions under which satellite and terrestrial operators can share frequencies.
Telecommunications companies have spent decades acquiring spectrum through auctions and transactions. They are unlikely to surrender that advantage without seeking favorable commercial terms or regulatory protections.
Starlink can launch more satellites, but it cannot manufacture spectrum. Additional spacecraft improve coverage and capacity only when the network has frequencies available to use.
Signal Physics Favors Terrestrial Towers
A mobile phone normally connects to a tower located hundreds of meters or a few kilometers away. A low Earth orbit satellite may operate more than 300 kilometers above the surface.
That distance produces a much weaker signal. MoffettNathanson analysts calculated that a signal traveling 220 miles would be approximately 48,000 times weaker than one traveling a single mile, assuming comparable transmission conditions.
Satellite systems compensate through sensitive antennas, advanced signal processing, focused beams, frequency reuse, and large orbital constellations. A standard handheld device still has limited antenna size and battery power. Buildings, terrain, foliage, and urban obstructions can further reduce performance.
Direct-to-device satellite service is consequently best suited to coverage gaps, emergencies, remote travel, maritime regions, and areas with sparse terrestrial infrastructure. Text messaging and low-data applications require less capacity than continuous video, gaming, or dense urban smartphone use.
New satellites and modified handsets may improve performance. They cannot erase the geometric advantage of placing a terrestrial antenna close to the customer.
This makes the phrase “fourth mobile network” potentially misleading. Starlink could become a major communications provider without duplicating every capability offered by terrestrial carriers.
The Strongest Product May Be Hybrid Connectivity
Satellite and terrestrial networks solve different coverage problems. A combined service could use towers where they provide high capacity and switch to satellites where tower coverage disappears.
Such a model would allow mobile carriers to advertise wider geographic coverage without constructing uneconomical towers in remote regions. Starlink would gain access to licensed spectrum, customer relationships, billing systems, device distribution, and regulatory expertise.
Existing mobile virtual network operators demonstrate how a company can sell wireless service without owning every component of the underlying network. Cable companies have used wholesale agreements with mobile carriers to add cellular products to their broadband offerings.
A deeper Starlink partnership could follow a related structure. SpaceX might supply satellite coverage and selected network services, with a carrier providing terrestrial capacity and customer management. The parties would need to negotiate wholesale pricing, service priority, data ownership, network control, and responsibility for customer support.
Partnerships create strategic tension because they can help Starlink build a customer base that later competes with its terrestrial partner. Carriers must compare that risk with the possibility that a competitor will secure the satellite relationship first.
Starlink’s Addressable Market Requires Careful Interpretation
SpaceX has referenced a smartphone-connectivity market valued at approximately $760 billion. That figure describes a broad pool of telecommunications spending, not revenue that satellite service can readily capture.
A realistic serviceable market excludes usage that satellites cannot support economically or technically. Dense urban traffic, indoor coverage, and high-capacity applications remain natural strengths of terrestrial infrastructure.
The more relevant market includes customers who value continuous geographic availability. Maritime operators, airlines, logistics companies, emergency services, rural communities, defense users, and international travelers may pay for coverage that follows them beyond conventional networks.
Pricing will determine how much of that demand becomes revenue. A satellite-mobile service could be sold as a premium add-on, emergency feature, wholesale carrier service, or stand-alone subscription. Each structure produces different margins and customer-acquisition costs.
The economics must also account for satellite manufacturing, launches, replenishment, gateways, spectrum, customer hardware, software, and regulatory compliance in each country. Subscriber growth alone does not establish profitability.
Regulators Will Shape the Competitive Outcome
Mobile markets remain national even when satellites provide global coverage. SpaceX needs operating authority, spectrum rights, and commercial arrangements in each jurisdiction it serves.
Governments may welcome satellite-to-phone services because they extend emergency communications and rural coverage. They may also worry about lawful access, data sovereignty, foreign control of communications infrastructure, competition, and dependence on a single operator.
National regulators could require partnerships with domestic carriers or impose local gateway and data-handling conditions. Some governments may support competing sovereign constellations to reduce dependence on Starlink.
Satellite operators must also coordinate frequencies internationally through the International Telecommunication Union and national administrations. The network’s technical reach does not override domestic communications law.
These rules may prevent Starlink from offering one identical mobile product worldwide. A collection of national partnerships may prove more practical than a single global carrier model.
Established Carriers Cannot Dismiss the Threat
Starlink does not need to replace AT&T, Verizon, or T-Mobile to alter their economics. Capturing high-margin roaming, remote coverage, aviation, maritime communications, or premium resilience services could remove profitable revenue from established providers.
It can also change customer expectations. Once subscribers expect connectivity outside tower coverage, terrestrial carriers may need satellite capabilities to remain competitive.
The largest near-term effect may be bargaining power. SpaceX can negotiate with carriers from a position supported by millions of customers, its own launch system, an extensive satellite network, and substantial access to capital.
The terrestrial operators retain superior urban capacity, established spectrum portfolios, device relationships, and regulatory experience. Those strengths make them valuable potential partners as well as competitors.
Summary
Starlink has the assets required to become an important mobile communications provider, but becoming a complete fourth national carrier presents a different challenge from delivering satellite broadband. Spectrum scarcity, weak handset-to-satellite signals, urban capacity requirements, and country-specific regulation limit a direct replacement strategy.
A hybrid model appears more commercially plausible. Starlink can supply coverage where terrestrial networks perform poorly, with established carriers handling dense traffic and conventional mobile service.
That outcome would still reshape telecommunications. Starlink would become an infrastructure supplier positioned inside the mobile market, rather than a satellite service operating outside it.