| Network | Check |
|---|---|
| EE, O2, Three, Vodafone | Each has postcode checker on website |
| Ofcom | Compares all networks – voice, 3G, 4G, 5G |
| MVNOs | Use host network – coverage may differ |
Source: Ofcom
Key links
- Ofcom – mobile coverage checker
- Ofcom – Mobile coverage
- Network coverage maps
- Each network (EE, O2, Three, Vodafone, etc.) has a postcode checker on their website
How to check coverage
Use Ofcom’s coverage checker and each network’s own map. Enter your postcode or address to see predicted coverage for voice, 3G, 4G, and 5G. Remember that maps are estimates – buildings, terrain, and demand can affect real-world signal. If possible, ask neighbours or colleagues which network they use and how they find it. Some networks share masts (e.g. via MVNOs), so coverage isn’t always identical to the host network.
4G and 5G in Swindon
Swindon has good 4G coverage from the main networks. 5G is being rolled out and may be available in parts of the town centre and other areas – check each operator’s map for the latest. For home broadband alternatives, see cheapest broadband deals in Swindon.
Switching network
If you’re switching for better coverage or a better deal, check coverage at home and work first. You can keep your number (PAC code). Compare tariffs for data, minutes, and contract length. We don’t recommend a specific network – use coverage checkers and your own usage to decide.
Information correct as of February 2026. Coverage is updated by networks over time. Use current coverage maps before switching.