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Opensignal reports and analyses are the definitive guide to understanding the true experience consumers receive on mobile and broadband networks.

Opensignalのレポートと分析はワイヤレス・ネットワーク・ユーザーの真の体感を理解する為の決定的ガイドです
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5G mmWave: The UK auction is over — but where’s the action?

By Robert Wyrzykowski, October 2025

In the latest spectrum auction, the U.K.’s three mobile operators — EE, O2, and Vodafone/Three — each spent £13 million for 5.4 GHz of mmWave spectrum. But, what is the actual impact of mmWave on the mobile network connectivity?

Redefining performance in the cloud-native era: lessons from Rakuten Mobile

By Sylwia Kechiche, August 2025

Find out how Rakuten Mobile uses AI, real-time analytics, and competitive benchmarking to drive continuous network improvement — and what’s next for KPIs in the age of Open RAN and 5G

Does 5G Standalone live up to the hype in Japan?

By Robert Wyrzykowski, July 2025

Following our recent analysis of the 5G SA market in Singapore, we now turn our attention to Japan — one of the global frontrunners in 5G SA commercial rollouts. We examine the experience of our users on 5G SA networks in Japan, compared to 5G NSA

Experienced Speed Tiers vs. Subscribed Speed Tiers: The Bottleneck of Home Wi-Fi

By Andrey Popov, Simon Lumb, July 2025

In this insight, we look at the percentage of households in a country achieving specific broadband speed levels, based on real-world measurements taken from users’ devices. Unlike operators’ and regulators’ reported data on speed tier adoption, these indicators reflect the entire delivery path, from content source to household to device, offering a more accurate and comprehensive picture of a country’s broadband reality.

Japan, July 2025, Fixed Broadband Experience

By Robert Wyrzykowski, July 2025

In the Wireline Experience contest in Japan, NURO Hikari leads the award count with three awards won outright and one jointly. J:COM is the sole winner for Consistent Quality. In the FWA Experience category, au comes first in all five awards.

Our NTT docomo users see the most resilient network experience in rural parts of Japan

By Robert Wyrzykowski, May 2025

Opensignal has explored the experience of our Japanese users in Q4 2024 and Q1 2025 across several key metrics to quantify the scale of the rural-urban gap in mobile experience.