According to the source, 4G Availability shows the proportion of time Opensignal users with a 4G device have a 4G connection.
4G Availability is not a measure of coverage or the geographic extent of a network.
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4G availability by mobile network in the United Kingdom 2020
As of 2020, EE offered the greatest 4G availability in the United Kingdom (UK), with 4G available for **** percent of the time. Ranked second was O2, that offered 4G availability **** percent of the time.
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OpenSignal. (October 31, 2020). Availability of 4G across mobile networks in the United Kingdom (UK) 2020 (in percentage of time available) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 15, 2026, from /statistics/1087675/4g-availability-by-network-uk/
OpenSignal. "Availability of 4G across mobile networks in the United Kingdom (UK) 2020 (in percentage of time available)." Chart. October 31, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 15, 2026. /statistics/1087675/4g-availability-by-network-uk/
OpenSignal. (2020). Availability of 4G across mobile networks in the United Kingdom (UK) 2020 (in percentage of time available). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 15, 2026. /statistics/1087675/4g-availability-by-network-uk/
OpenSignal. "Availability of 4g across Mobile Networks in The United Kingdom (Uk) 2020 (in Percentage of Time Available)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Oct 2020, /statistics/1087675/4g-availability-by-network-uk/
OpenSignal, Availability of 4G across mobile networks in the United Kingdom (UK) 2020 (in percentage of time available) ÌÇÐÄÆƽâ°æ, /statistics/1087675/4g-availability-by-network-uk/ (last visited July 15, 2026)
Availability of 4G across mobile networks in the United Kingdom (UK) 2020 (in percentage of time available) [Graph], OpenSignal, October 31, 2020. [Online]. Available: /statistics/1087675/4g-availability-by-network-uk/
