Networks and virtual networks
The UK has four companies that own and run mobile masts: EE, O2, Vodafone and Three. They're called mobile network operators.
Many other brands rent space on those networks. These are called mobile virtual network operators, or MVNOs. An MVNO's coverage is broadly the same as its host network's, though speeds and features such as 5G, Wi-Fi calling and roaming can differ. MVNOs are often cheaper and more flexible, and many offer rolling monthly SIM-only plans.
Vodafone and Three merged in 2025 to form VodafoneThree. Both brands are still sold separately.
EE
Owned by BT Group. Brands that use the EE network include:
| Brand | Runs on | Good to know |
|---|---|---|
| BT Mobile | EE | Discounts for BT broadband customers |
| Lyca Mobile | EE | Focus on low-cost international calls |
| Spusu | EE | SIM-only plans |
O2
Part of Virgin Media O2. Brands that use the O2 network include:
| Brand | Runs on | Good to know |
|---|---|---|
| giffgaff | O2 | Owned by Virgin Media O2; rolling monthly plans |
| Tesco Mobile | O2 | Joint venture with Tesco |
| Sky Mobile | O2 | Discounts for Sky customers |
Vodafone
Part of VodafoneThree. Brands that use the Vodafone network include:
| Brand | Runs on | Good to know |
|---|---|---|
| VOXI | Vodafone | Vodafone's own SIM-only brand |
| Lebara | Vodafone | Focus on international calls |
| Asda Mobile | Vodafone | Sold through Asda |
| Talkmobile | Vodafone | SIM-only plans |
Three
Part of VodafoneThree. Brands that use the Three network include:
| Brand | Runs on | Good to know |
|---|---|---|
| SMARTY | Three | Three's own SIM-only brand |
| iD Mobile | Three | Owned by Currys |
| Honest Mobile | Three | SIM-only plans |
Checking coverage
Coverage depends on where you live, work and travel, and on the building you're in. Before you buy, use the host network's postcode coverage checker for each place you spend time. Ofcom also publishes independent coverage maps.
About this page
This page is general information and is checked periodically. Arrangements between brands and networks can change, so confirm the details with the provider before you buy. Brand names are trademarks of their owners and appear here only to identify them; we're not affiliated with any of them.