iD Mobile SIM Only Deals

iD Mobile runs on the Three UK network, giving you access to Three's 4G and 5G infrastructure across the UK. Coverage is generally strong in urban areas but can vary in rural locations, so it is worth checking the iD Mobile coverage checker before you sign up.

Yes, iD Mobile offer unlimited data SIM only plans from £15 per month. This is a good option if you stream a lot of video, use your phone as a hotspot, or just want the peace of mind of never running out of data. Use the unlimited data filter above to see the latest options.

Yes, iD Mobile includes roaming across 50+ EU and EEA destinations as standard, so you can use your minutes, texts, and data without extra charges. If you are travelling outside of these destinations, you will need to purchase a roaming add-on through the iD Mobile website or app.

Yes, 5G is available on iD Mobile as standard on compatible plans. As iD Mobile runs on the Three network, you get access to Three's 5G coverage across the UK. To use 5G you will need a 5G compatible handset -- you can check this on your phone manufacturer's website. Coverage can vary by location so it is worth checking the iD Mobile coverage checker before you sign up.

iD Mobile require a credit check for all Pay Monthly SIM only deals. If your application is declined, you may want to consider a pay as you go option or look at networks that do not require a credit check. You can compare all no credit check SIM only deals here.

iD Mobile SIMs are three-in-one, meaning you can pop out the right size for your phone -- Standard, Micro, or Nano. Most modern smartphones use Nano SIMs. If you are not sure which size you need, check your phone's user manual or the manufacturer's website. iD Mobile also offer eSIMs if you would rather skip the physical SIM entirely.

Yes, you can keep your existing number when switching to iD Mobile. To do this you will need a PAC code from your current network -- simply text PAC to 65075 and you will receive one by text message. Enter the PAC code when signing up for your iD Mobile plan and they will arrange the switch, which typically takes one working day. You can find out more in our iD Mobile switching guide.

iD Mobile runs on the merged VodafoneThree network, which since June 2025 covers the majority of the UK population on 4G and 5G. Coverage is generally strong in towns and cities but can be patchier in rural areas. Use the iD Mobile coverage checker to see what signal is like in your area, and read our ultimate guide to network coverage for more information.

Yes. iD Mobile runs on the Three network, which was ranked the fastest 5G mobile network in the UK by Ookla's Speedtest for H2 2025. As with any network, speeds can vary depending on your location, the time of day, and whether you are on 4G or 5G. Urban areas will generally see faster speeds than rural locations.

iD Mobile runs on the merged VodafoneThree network, which since June 2025 means your phone can switch between two networks to find the best signal at your location. In terms of complaints, Ofcom's Q3 2025 data placed iD Mobile among the providers generating the fewest complaints relative to their customer base -- a positive sign for day to day reliability. As with any network, performance can vary by location, so checking the coverage map before you sign up is always worthwhile.

iD Mobile handle customer service through online chat and their app -- there is no phone support option. This works well for straightforward queries but can be frustrating if you have a complex issue that needs resolving quickly. If having access to phone support is important to you, networks like O2 or Vodafone may be a better fit.

Yes, iD Mobile offer eSIMs on most SIM only plans. If you are already a iD Mobile customer and want to switch to an eSIM, you can request this through the iD Mobile app or online chat. Use the filter above to show eSIM only deals.

No, iD Mobile require a credit check for all SIM only deals. If you have a poor credit history or would prefer to avoid a credit check, you can compare no credit check SIM only deals here.