idata.o2.co.uk is the data gateway (APN) that O2 uses. Through us, you connect to the O2 network and if you are seeing idata.o2.co.uk anywhere, it means your data usage information is being sent to O2, before O2 send it to us.

This will lead to delays in our ability to react to your data usage, so if you use up your data allowance and we're not able to detect that immediately, you could incur extra costs through continued usage.

Therefore, it's vital that the data settings on your phone are set correctly, to our APN service.

To correctly configure your device, follow the guide here, for your operating system: https://www.plan.com/apn-settings