AT&T's growth strategy through 2027 is organized around two infrastructure investments that management has committed to with unprecedented capital: 5G wireless network expansion and AT&T Fiber broadband buildout. Both investments are necessary for competitive positioning; both require sustained capital expenditure that limits near-term free cash flow; and both are expected to generate subscriber growth, ARPU improvement, and revenue expansion that justifies the investment over a multi-year horizon. The 5G strategy centers on deploying mid-band spectrum — particularly C-band spectrum acquired in the 2021 FCC auction at a cost of approximately 23 billion USD — across AT&T's nationwide network. Mid-band 5G (operating in the 2.5–4 GHz range) provides the combination of coverage and speed that makes 5G commercially meaningful: unlike high-band (millimeter wave) 5G that offers extraordinary speeds but negligible coverage, and low-band 5G that offers wide coverage but speeds comparable to advanced 4G, mid-band 5G delivers both geographical reach and the throughput improvement that consumers and enterprises will pay premium prices to access. AT&T's mid-band 5G buildout, following T-Mobile's head start in this spectrum band, is an essential catch-up investment that management has accelerated significantly from 2022 onward. The fixed wireless access opportunity — providing home broadband service through the 5G network to addresses not yet served by fiber — is a growth lever that AT&T has been more cautious about than T-Mobile and Verizon, which have aggressively marketed fixed wireless to cable broadband customers. AT&T's position is that fiber is structurally superior to fixed wireless for home broadband and that capital should be prioritized toward fiber deployment rather than fixed wireless service that uses the same 5G capacity needed for mobile subscribers. This strategic differentiation — fiber-first for home broadband, 5G for mobile — is coherent but means AT&T captures less near-term revenue from fixed wireless than competitors who have pursued both simultaneously. The fiber broadband buildout — targeting 30+ million locations passed by end-2025 and continued expansion thereafter — is the most capital-intensive growth investment and the one with the longest return horizon. Each million locations added to the fiber network requires approximately 3,500 USD in infrastructure investment per location, generating revenue as consumer and small business customers connect (typically at 30–40% penetration of passed locations within 3–5 years). The economics of mature fiber deployments are attractive — low operating costs, low churn, high ARPU — but the ramp from investment to mature returns takes years of patience and sustained capital commitment.