Who Pays for In-Building Wireless? Four Funding Models, Compared

For twenty years, the answer to “who pays for the DAS?” was usually the carrier. Operators funded in-building systems in exchange for equipment space, power, and an enterprise account worth serving. That arrangement has largely dissolved, and many building owners find out late — well into a project, waiting on a system that was never actually approved.

Verizon’s Senior Director for Private 5G Networks described the shift on the record last year, dating the turn to roughly 2023. Bring-your-own-device changed the revenue relationship between operators and enterprises. The 5G build absorbed enormous capital. Occupancy patterns shifted.

The economics behind it

U.S. carrier network investment was $29 billion in 2024 — level with 2019, and below the $39 billion peak in 2022. Over that same period, mobile data traffic grew from 37.1 to 132.5 trillion megabytes, roughly 3.6 times (CTIA, 2025 Annual Survey).

Flat capital against compounding demand means operators triage. In-building projects compete against macro capacity that serves far more subscribers per dollar. Marquee venues — stadiums, arenas, airports — still clear that bar. Many properties under a million square feet no longer do. That is not a criticism of the carriers. It is a planning reality, and the owners who handle it best are the ones who learn it early rather than late.

Four ways coverage gets funded

Most conversations frame this as “the carrier pays” versus “we pay.” In practice there are four distinct structures, and they differ less in total dollars than in who controls the schedule, who owns the asset at year ten, and who carries the risk if an operator declines to participate.

Carrier-funded. The operator pays, owns, and controls the system. Best fit: venues with high public offload value. Principal risk: it may never be funded, and you do not set the schedule.

Third-party neutral host. A neutral host operator or tower company funds and owns the system, recovering cost through carrier fees and sometimes an owner contribution. Best fit: multi-tenant office, hospitality, healthcare, large campuses. Principal risk: carrier onboarding is not guaranteed, and long contract terms encumber the property.

Enterprise-funded. You pay, you own it, you set the date — though a carrier agreement is still required for a licensed-spectrum signal source. Best fit: owners who need schedule certainty and lifecycle control.

Private CBRS or 5G. Your own network, your own devices, no carrier on the critical path. Best fit: warehousing, manufacturing, ports, logistics, private campus IoT. Important limit: it does not put bars on a visitor’s phone.

The point most owners miss

Carrier posture on shared-spectrum neutral host has tightened, and it is not uniform. In August 2025, T-Mobile directed its neutral host partners to prioritize licensed mid-band spectrum over CBRS for new shared-infrastructure projects. Verizon has consistently positioned its own licensed spectrum as the foundation for neutral host builds. AT&T has remained the most open to CBRS-based MOCN.

Which leads to the single most useful point in this whole discussion: a neutral host design that only one operator has signed is, functionally, a single-carrier system. Written carrier commitments — not letters of intent, not a vendor’s assurance that the carriers will come — are the thing to confirm early.

Get the full paper

Our four-page white paper compares all four models side by side, includes a decision path you can run against your own property in ten minutes, and lists five questions to ask any integrator or neutral host operator before signing. It cites CTIA, the Small Cell Forum, the Wireless Infrastructure Association, the U.S. Energy Information Administration, and on-record carrier statements. Every source is listed and linked.

Download it free at nhnconnect.com/who-pays-for-coverage. One signup gives you access to the full NHN Insights library, including everything we publish next.