Which network does my SIM use? Every brand and its network
Smaller brands use the signal of one of the four big networks: EE, O2, Vodafone or Three
Since Vodafone and Three merged in 2025, brands on either can use both networks in upgraded areas.
Source: Each brand's own website. Sky Mobile: a 2018 Sky Group announcement, the latest primary source available, checked 13 October 2026
Every brand and its network
| Brand | Network |
|---|---|
| 1pMobile | EE |
| Asda Mobile | Vodafone |
| giffgaff | O2 |
| Grade Mobile | EE |
| iD Mobile | Three |
| Lebara | Vodafone |
| Lyca Mobile | EE |
| Sky Mobile | O2 |
| SMARTY | Three |
| Talkmobile | Vodafone |
| Tesco Mobile | O2 |
| VOXI | Vodafone |
Smaller brands that use the same network can have different prices.
Source: Each brand's own website. Sky Mobile: a 2018 Sky Group announcement, the latest primary source available, checked 13 October 2026. Each one is linked in Sources and dates.
Which brands use the O2 network?
Which brands use the Vodafone network?
Compare SIM only deals
Deals come from our comparison partners.
Some providers pay for higher placement in the Featured order.
Signal where you live
Every network has at least 99% 4G coverage outside UK premises. 5G coverage outside premises ranges from 76% to 94% depending on the network.
Check coverage at your postcode with Ofcom's mobile checker.
Source: Ofcom, Connected Nations update: Spring 2026, data as of January 2026, published 13 May 2026
Sources and dates
- giffgaff, About usChecked 13 October 2026giffgaff uses the O2 network.
- Tesco Mobile, 5G powered by O2's networkChecked 13 October 2026Tesco Mobile uses the O2 network.
- Sky Group, Sky and Telefónica UK extend Sky Mobile partnership (2018)Checked 13 October 2026Sky Mobile uses the O2 network.
- BT newsroom, Lyca Mobile partners with BT WholesaleChecked 13 October 2026Lyca Mobile uses the EE network.
- 1pMobile, Ask Penny: Pre-salesChecked 18 October 20261pMobile uses the EE network.
- Grade Mobile, home pageChecked 17 October 2026Grade Mobile uses the EE network.
- VOXI, Our networkChecked 13 October 2026VOXI uses the Vodafone network.
- Lebara, About usChecked 13 October 2026Lebara uses the Vodafone network.
- Asda Mobile, article on Lycamobile's network switchChecked 13 October 2026Asda Mobile uses the Vodafone network.
- Talkmobile, NetworkChecked 13 October 2026Talkmobile uses the Vodafone network, and can use Three's.
- SMARTY, What does Three's merger with Vodafone mean for SMARTY?Checked 13 October 2026SMARTY uses the Three network, and the merger with Vodafone.
- iD Mobile, VodafoneThree mergerChecked 13 October 2026iD Mobile uses the Three network, and the merger with Vodafone.
- Ofcom, Connected Nations update: Spring 2026Published 13 May 2026, data as of January 20264G and 5G coverage outside premises, across the networks.
Figures on this page are a guide, not advice. They show typical prices for new deals, not what is right for you. Prices and rules change often, so check the details with the provider before you decide.