Shares of AT&T (NYSE: T) climbed 2.11% to $23.55 during late-morning trading following the telecommunications company's announcement of a significant infrastructure partnership with Ericsson. The collaboration focuses on deploying recently acquired 600 MHz spectrum across AT&T's nationwide wireless network, with the goal of enhancing coverage quality, increasing data speeds, improving call reliability, and expanding capacity for both metropolitan and rural communities.

Ericsson to Supply Dual-Band Radio Equipment for 600 MHz Expansion

AT&T has selected Ericsson as the supplier of dual-band radio equipment for the upcoming 600 MHz network expansion. The technology allows more efficient use of low-band spectrum resources at existing cell tower locations. The deployment strategy is expected to broaden signal coverage while improving indoor connectivity in areas that have traditionally presented service challenges.

AT&T acquired its 600 MHz spectrum assets from EchoStar to strengthen its low-frequency wireless portfolio. The acquisition closed a competitive gap with rivals such as T-Mobile, which has leveraged its own low-band holdings to build a widely recognized nationwide 5G footprint. Lower-frequency bands offer superior propagation characteristics compared to higher frequencies, enabling better penetration through buildings and physical obstacles. As a result, the spectrum allocation enhances service quality in residential properties, commercial buildings, transportation corridors, and geographically remote locations.

The Ericsson radio systems will feature advanced 8RX uplink capabilities across AT&T's low-band infrastructure. This upgrade optimizes the communication path from mobile devices to nearby cell towers, which should translate into improved network responsiveness during file uploads, voice calls, and latency-sensitive mobile applications.

Modernization Program Surpasses 60% Completion

AT&T reports that its comprehensive wireless network modernization initiative has surpassed the 60% completion threshold. The program stems from a multi-year Ericsson vendor agreement announced in late 2023, positioning Ericsson as AT&T's primary radio access network supplier and displacing a significant portion of previously deployed Nokia equipment. Ericsson equipment already deployed has produced measurable improvements in designated coverage areas. In certain markets, average data transmission speeds have doubled following the installation of updated radio systems.

Voice service quality has also improved, with dropped and blocked call incidents declining by 10%. In regions with modernized infrastructure, slow data performance events have been reduced by as much as 70%. These gains provide subscribers with greater service stability during periods of peak usage and resource-intensive mobile activity.

Additionally, AT&T has implemented standardized equipment configurations at tower-top installations across numerous cell sites. This optimization is expected to reduce uplink interference by approximately 80% at upgraded locations, allowing the network to handle higher traffic volumes while maintaining reliable connections.

Open RAN Architecture Supports Scalable Network Evolution

The new partnership builds on the existing Open RAN collaboration between AT&T and Ericsson. The Open RAN framework gives telecom operators greater flexibility in equipment selection and network management, and AT&T plans to leverage this approach as it scales capacity and streamlines future infrastructure upgrades. Open RAN has gained traction across the global telecom industry as operators seek to reduce dependence on single-vendor ecosystems and introduce interoperability among equipment suppliers, though large-scale commercial deployments in the United States remain in early stages.

The modernization effort positions AT&T to meet growing demand from data-intensive applications, including multimedia production, cloud computing, and real-time interactive communications. The carrier says it requires expanded capacity, reduced interference, and faster network responsiveness across additional geographic territories.

AT&T has incorporated the anticipated infrastructure investment into its second-quarter 2026 financial projections and capital expenditure framework. The company will announce specific deployment timelines and service launch dates in future communications. In the meantime, the Ericsson partnership establishes a defined roadmap for AT&T's next phase of network expansion.