The Wireless Infrastructure Association’s fourth annual By the Numbers report documents a sector investing heavily in 5G, AI, and fixed wireless — but with a workforce that contracted by more than 26,000 jobs in a single year, raising serious questions about the pipeline of workers needed to build what comes next.
The Wireless Infrastructure Association released its 2025 Wireless Infrastructure by the Numbers report on March 18, 2026, offering the most comprehensive annual snapshot of the U.S. wireless sector’s physical footprint, financial scale, and workforce. Now in its fourth year, the report — prepared by research firm iGR — covers purpose-built cellular towers, macrocell sites, indoor and outdoor small cells, annual capital investment, and the employment base sustaining it all. The numbers tell a story of an industry that is growing in scope and investment while simultaneously grappling with a workforce contraction that, left unaddressed, could constrain the buildout of the very infrastructure the nation is counting on for 5G, fixed wireless broadband, and the AI-driven future.
The Investment Picture: Nearly $65 Billion Deployed in 2025
The scale of annual spending in wireless infrastructure is often underappreciated outside the industry. In 2025, total wireless infrastructure investment — encompassing construction, maintenance, and operations — reached nearly $65 billion, up from $63 billion in 2024. Operating expenses for U.S. cellular networks alone climbed to nearly $54.7 billion, reflecting the ongoing cost of running one of the most complex physical networks on earth. Capital expenditure directed specifically at expanding network capacity and coverage came in at more than $10.2 billion, excluding spectrum purchases, maintenance, and operations.
That $65 billion figure is not simply a carrier spending number. It flows through every layer of the wireless ecosystem — from the tower companies that own the structures, to the equipment manufacturers that supply the radios and antennas, to the fiber providers that backhaul the data, to the contractors and subcontractors who physically build, modify, and maintain the sites. For wireless contractors specifically, the magnitude of that annual investment represents the economic foundation of their industry — and the stakes of any disruption to it.
The Build Numbers: Towers, Macrocells, and Small Cells
By the end of 2025, the U.S. wireless infrastructure footprint stood at the following:
| 158,500 Purpose-Built Cellular Towers in Operation |
| 254,850 Macrocell Sites in Operation (excluding small cells) |
| 198,100 Outdoor Small Cells in Operation |
| 830,350 Indoor Small Cell Nodes in Use (DAS, CBRS, mmWave, and licensed bands) |
The tower count of 158,500 represents an increase of 3,700 purpose-built structures over the 154,800 reported at the end of 2024 — modest growth that reflects a maturing macro tower market where carriers are increasingly focused on densification and colocation rather than new greenfield builds. The macrocell count of 254,850 — up from 248,050 in 2024 — confirms what the industry has observed for several years: more cell sites are being deployed on existing structures, rooftops, and alternative infrastructure rather than on new towers, a trend that improves capital efficiency but also changes the nature of the construction and modification work available to contractors.
The indoor small cell node count of 830,350 — up from 802,500 in 2024 — reflects continued investment in distributed antenna systems, private CBRS networks, and in-building coverage solutions across stadiums, hospitals, corporate campuses, and large commercial facilities. Outdoor small cells came in at 198,100, a slight decline from 2024 levels, consistent with carrier network strategies that have favored indoor coverage and macrocell densification in the near term.
Notably, the report also points to more than 14 million households now connected via Fixed Wireless Access — a figure that underscores how the same tower and macrocell infrastructure that powers mobile connectivity has become a legitimate home broadband alternative, intensifying the economic and strategic value of every site in the network.
The Workforce Number That Demands Attention: Down 26,400 Jobs in One Year
The most consequential — and concerning — figure in the 2025 report is the workforce count. The report estimates 342,350 full-time workers or equivalents were engaged in building, maintaining, and operating the nation’s cellular networks in 2025. That is a decline of 26,400 jobs from the 368,750 reported in 2024.
To put that in context: the wireless infrastructure workforce shed the equivalent of a mid-sized city’s entire employment base in a single year. And unlike a quarterly earnings fluctuation, workforce contraction of this scale has long-tail consequences. Experienced tower technicians, field supervisors, project managers, and construction crews are not interchangeable commodities that can be hired back overnight when deployment volumes increase. They represent years of on-the-job training, safety certification, and institutional knowledge that, once lost to the industry, takes years to rebuild.
The report attributes the workforce reduction in part to the completion of the most intensive phase of 5G macro buildout, with carriers shifting from coverage-first deployment to more targeted capacity and densification work. Capital expenditure on new builds dropped year over year even as operating costs rose, reflecting that shift. But the workforce number also reflects deeper structural pressures that the industry has been grappling with for years: compressed contractor margins, pricing structures that do not keep pace with rising labor and compliance costs, and a recruitment pipeline that has not yet replaced the experienced workers aging out of the field.
What the Numbers Mean for Contractors and the Broader Ecosystem
For wireless contractors — the companies and crews who physically execute the builds, modifications, and maintenance that these investment figures represent — the 2025 report is both a validation and a warning.
The validation: $65 billion in annual industry investment is a real and substantial market. The 3,700 new towers added in 2025, the continued growth in macrocell deployments, and the expanding indoor small cell market all represent work. The fixed wireless access boom — 14 million households and growing — requires ongoing site upgrades and new infrastructure to sustain. And the industry’s own forward guidance points to continued densification, AI-driven network optimization, and the early stages of 6G readiness investment as growth vectors in the years ahead.
The warning: a workforce that contracted by more than 26,000 jobs in one year is a workforce under economic stress. The report does not provide a profession-by-profession breakdown of where those jobs went, but contractors and tower companies know from experience that the attrition is not evenly distributed. It concentrates among the skilled field workers — tower climbers, riggers, RF technicians — whose work is most physically demanding, whose training is most specialized, and whose economic alternatives are increasing as construction and energy sectors compete for the same labor pool.
If the pricing structures that govern contractor work do not support the wages and career paths necessary to retain and recruit that workforce, the $65 billion in annual investment will increasingly chase a shrinking pool of qualified workers. That dynamic does not produce better outcomes for carriers, tower companies, or the consumers who depend on the networks. It produces delays, safety risks, and quality degradation — the opposite of what a sector racing toward 6G can afford.
The AI and Fixed Wireless Dimensions
The 2025 report introduces AI as an explicit theme for the first time, noting that wireless infrastructure is becoming a foundational layer of the AI stack. As AI-powered applications move from cloud-dependent processing toward edge inference — where data is processed closer to the device for lower latency — the tower sites and small cells that make up this infrastructure become AI infrastructure as well. American Tower and Crown Castle have both begun positioning their tower assets for edge compute deployment, and the 2025 report’s framing reflects that the industry understands this transition is underway.
For contractors, the AI dimension means the nature of the work is evolving. Edge compute deployments at tower sites require different skill sets than traditional antenna and radio installations. Power upgrades, fiber terminations, equipment shelter modifications, and thermal management systems are increasingly part of the scope on sites being prepared for edge infrastructure. Companies and workers who develop those capabilities now will be better positioned as the next investment cycle accelerates.
The Bigger Picture
WIA’s 2025 By the Numbers report is, at its core, a document about scale, numbers that justify the industry’s claim that wireless infrastructure is as essential to national life as roads, power lines, and water systems.
But scale alone does not guarantee health. An industry that invests $65 billion annually while its field workforce contracts by 26,000 workers in a single year is an industry with an alignment problem — between the capital flowing into the system and the human capacity needed to deploy it. That alignment problem is not new, and it is not unique to 2025. But the WIA report puts a specific number on it for the first time at this scale, and that number — 342,350, down from 368,750 — deserves as much attention from carriers, tower owners, and policymakers as any of the build statistics that accompany it.
The infrastructure will only be as strong as the workforce that builds and maintains it. Right now, that workforce is shrinking.
