The report, which assessed the state of 5G SA and 5G Advanced worldwide, said U.S. standalone adoption surged 8.2 percentage points over the past year to reach 31.6 percent, driven by the sequential rollout of SA networks across all three of its Tier-1 carriers. The pace of expansion outstripped every other major market tracked in the study.
South Korea, meanwhile, posted a median 5G SA download speed of 767 megabits per second (Mbps) in the fourth quarter of 2025, placing second globally behind the Gulf Cooperation Council (GCC) region. The country's standing is largely attributed to its wide 3.5 GHz channel bandwidth, though overall deployment progress has remained broadly stagnant.
The GCC delivered the world's fastest 5G SA median download speeds at 1.13 gigabits per second (Gbps) — about five times that of Europe — with the UAE alone recording 1.24 Gbps. The United States, despite its rapid adoption gains, registered a median download speed of 404 Mbps.
Europe trailed sharply, posting just 205 Mbps, though that figure still represented a 45 percent improvement over non-standalone networks. The region's overall 5G SA sample share stood at 2.8 percent in the fourth quarter, trailing North America by 27 percentage points, with Austria, Spain, the United Kingdom, and France leading the bloc's gradual acceleration.
Globally, 5G SA connections delivered a median download speed of 269.51 Mbps, about 52 percent faster than legacy non-standalone networks, as overall SA sample share reached 17.6 percent — meaning roughly one in six 5G speed tests worldwide now occurs on a standalone network.
"5G SA is being recognized not merely as a connectivity evolution, but as national-level infrastructure for AI supremacy," Ookla said, adding that considerations of digital sovereignty and AI readiness are reshaping telecom investment priorities across major markets.
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