SpaceX’s Push for a Fourth US Carrier Faces a $500 Billion Price Tag and Years of Delays

Key points

• SpaceX is in talks with infrastructure firms like Crown Castle to secure access to at least 80,000 cell sites, a scale comparable to the networks of Verizon, AT&T, and T-Mobile.
• Verizon CEO Daniel Schulman estimated the total cost for such a buildout at $300 billion to $500 billion over six to seven years, noting that satellite-only service cannot compete with terrestrial efficiency in urban areas where 98% of revenue is generated.
• Musk responded to these estimates on X, asserting the buildout will take only two to three years, though he did not address the specific financial projections provided by competitors.
• SpaceX recently purchased up to 14 megahertz of low-band spectrum in the 800 MHz range for $8 billion to support a hybrid network combining ground antennas with Starlink satellites.
• Incumbent carriers and the CTIA trade association are lobbying the FCC to block satellite providers from using 5G frequencies and to preserve exclusive rights for terrestrial licensees.

Background

This development follows earlier reports from late October 2026 regarding SpaceX’s aggressive expansion into mobile services, which triggered stock volatility for major telecoms. Previous coverage highlighted the regulatory hurdles and the strategic acquisition of AWS-3 licenses to support this hybrid model. Additionally, European telecom giants recently formed an alliance to counter Starlink’s ambitions, indicating a global response to SpaceX’s push into terrestrial connectivity.

Why it matters

The entry of SpaceX into the terrestrial mobile market threatens to disrupt the oligopoly of the three major US carriers. If successful, it could force incumbents to compete on price and service in a market they have controlled for decades. However, the immense capital requirements and regulatory pushback suggest that any significant market share shift may take years, potentially allowing incumbents to maintain dominance while adapting to new hybrid connectivity models.

What to watch

Regulators at the FCC will likely face pressure to decide on spectrum rules that either allow or restrict satellite providers from offering cellular service. SpaceX will need to finalize its tower lease agreements and secure further spectrum rights to move from planning to deployment. Competitors may accelerate their own infrastructure upgrades or explore alternative models, such as the wholesale agreements used by cable providers, to mitigate the threat of a fourth carrier.