AT&T migrates FirstNet to dedicated 5G standalone core network

This migration provides first responders with the low-latency infrastructure required for high-bandwidth video streaming and real-time situational awareness. By decoupling public safety traffic from the commercial core, AT&T enhances security and provides the granularity needed for network slicing. For the broader ecosystem, it validates 5G SA as the standard for high-stakes connectivity, placing AT&T in direct competition with T-Mobile’s T-Priority and Verizon Frontline slicing offerings. Watch for the rollout of more 'application-aware' services as agencies begin utilizing the Adaptive Mission Performance platform.

The transition to a 5G standalone core is a central pillar of the FirstNet Authority’s 10-year, $8 billion investment plan announced in early 2024. Per FirstNet.gov (February 2024), this initiative includes $6.3 billion specifically allocated for network upgrades and a further $2 billion for coverage expansion in rural and tribal areas. This 'FirstNet 3.0' phase aims to shift the platform from a foundational buildout to an operationally mature organization focused on mission-critical features like 3GPP-standard push-to-talk and interoperability with land mobile radio systems.

Competitive pressure in the public safety sector has intensified as rivals scale their 5G SA capabilities. T-Mobile US launched its T-Priority service in 2023, which utilizes a nationwide network slice to guarantee capacity for responders. According to T-Mobile (July 2026), T-Priority can dynamically expand network resources during extreme congestion, a feature it markets as a software-defined alternative to AT&T’s spectrum-heavy approach. Meanwhile, Verizon has expanded its Frontline Network Slice to support 5G SA smartphones and tablets, moving beyond its initial focus on vehicle-based routers.

Technically, the shift to SA cores is essential for the future of mobile edge computing in the field. Per Urgent Communications (December 2024), the FirstNet Authority is exploring low-earth orbit (LEO) satellite backhaul to supplement terrestrial 5G SA coverage. These developments suggest that the 'one-size-fits-all' model of commercial cellular is being replaced by highly specialized, virtualized networks tailored for specific high-reliability industries.