3G is the third generation of mobile technology, deployed in the UK from 2003. It's the network older phones fall back to when 4G/5G aren't available — and it's being switched off.
UK 3G shutdown timeline
- Vodafone: shut down 3G in 2024
- EE: shut down 3G in 2024
- Three: shut down 3G in early 2025
- O2: shutting down 3G during 2025
After shutdown, those frequencies are reallocated to 4G and 5G for better coverage and speed.
What you need
A 4G phone with VoLTE support. Most phones from 2018 onwards qualify. If your phone is older, voice calls may stop working on certain networks after the shutdown.
Why now
3G is energy-inefficient compared to 4G/5G. Shutting it down lets networks reduce power costs, free up valuable spectrum, and consolidate maintenance.
See also
How 3G (and the 3G Shutdown) matters when picking a UK mobile plan
Understanding 3G (and the 3G Shutdown) helps you compare mobile providers on a like-for-like basis. Most consumer mobile pricing pages skip the technical detail — knowing the terminology means you can spot when a plan is genuinely better and when it just sounds that way. The Fuse Mobile glossary keeps definitions short and consumer-focused, no jargon-on-jargon.
Fuse Mobile is a UK multi-network data-only eSIM — it gives your phone access to all four UK mobile networks (EE, Three, Vodafone, O2) through a single profile. Where 3G (and the 3G Shutdown) is relevant to that setup, it's surfaced explicitly: pricing pages show real numbers, the coverage checker shows live per-network signal, and there's no hidden fee structure. See the plans page for the current pricing or read the multi-network eSIM explainer for the technical detail.