UAE operator du says it has switched on the world's first commercial mobile broadband service running on the upper 6 GHz band, according to Gulf Business. The claim lands without the supporting numbers operators usually volunteer.

du, formally Emirates Integrated Telecommunications, told the Dubai-based outlet that subscribers on its live network can now access the service via the band commonly labelled U6GHz — the 6,425–7,125 MHz slice that regulators globally are still weighing for licensed mobile use.

The "world-first" framing matters, because U6GHz has spent three years in regulatory limbo. The ITU's 2023 World Radiocommunication Conference in Dubai stopped short of a clean identification for IMT across Region 1, leaving national regulators to argue it out. The Gulf, the United States and parts of Asia have since pressed ahead; Europe has not.

What did du actually launch?

That is where the announcement thins out. du's statement, as reported, names the technology and the band but skips the basics: city, site, subscriber count, supported devices and target speeds. The operator has not disclosed whether the U6GHz carrier runs as a standalone 5G layer, a 5G-Advanced add-on, or a stepping stone toward 6G. All three have been proposed by vendors for this exact spectrum.

No throughput figure appears anywhere. Operators usually lead with peak speeds or real-world averages when they want to demonstrate a generational jump. du has not.

Why does the upper 6 GHz matter?

Three reasons make U6GHz appealing. It sits between the congested 5 GHz Wi-Fi band and the millimetre-wave frequencies that never quite scaled outside dense urban pockets. It offers roughly 700 MHz of clean, contiguous bandwidth — room for at least two wide 5G carriers, or, later, very wide 6G channels. And because it propagates better than mmWave, it can run on existing macro-cell sites.

The catch is coexistence with incumbents — fixed-satellite services, fixed links, and in some markets Wi-Fi 6E and 7. That fight is what du's deployment quietly enters.

Is the claim genuinely a first?

Define "first" carefully. In the United States, the FCC originally opened the 5,925–7,125 MHz band for unlicensed use and is now weighing whether to repurpose the upper portion for licensed mobile. Brazil, Saudi Arabia and South Korea have granted or announced upper-band licences. Whether any of those have moved to billed commercial traffic, rather than trials, is not publicly clear. du's claim, if accurate, lands on the customer side of the line.

What comes next?

du has not said when more cities follow, how the deployment scales, or when handset support arrives in volume. U6GHz only entered 3GPP Release 19, and U6GHz-capable smartphones have not yet shipped in any meaningful number. The phrase "customers on the live network" describes a small population by any honest measure.

If du follows up with coverage maps, speed benchmarks and a device roadmap, the claim hardens into a story. Until then, it sits closer to marketing than to milestone.