Tesco Mobile is a value Mobile Virtual Network Operator (MVNO) which means it uses O2's mobile network to provide its mobile coverage.In our most recent customer service poll, Tesco Mobile scored 8/10 based on 471 votes.
Tesco Mobile doesn't carry out credit checks when you apply for one of its PAYG Sims. You can then choose to purchase a monthly bundle (minutes, texts and data) or choose its Triple Credit PAYG tariff which charges you for each minute, text and MB of data you use.
The cheapest Tesco Mobile Sim costs £10/month and it currently offers unlimited minutes & texts and 12GB/month data over a 24-month contract. See cheap Tesco Sims.
Yes, you can keep your old mobile phone number. If you're moving from another network, you'll need to text 'PAC' for free to 65075 to request your PAC (porting authorisation code). You will need to provide this to Tesco Mobile which should move your number over within one working day.
Yes, Tesco Mobile offers 5G on most of its contract Sim plans, but you can't currently get 5G on its PAYG Sim plans, including its one-month Rocket Packs. Be aware you'll need a 5G-compatible phone as well as Sim.