Top Up Your Mobile Phone Credit

Supported by almost all major phone networks

Find out more

Online top ups made easy

Enter number

Enter number

Buy top up

Buy top up

Enjoy

Enjoy

UK Networks

List of supported UK networks

Happy to help

On Top Up is committed to bringing you the fastest and easiest method for topping up your mobile phone credit.

If you need help with an aspect of our service, you can view our help and support pages.

Learn how On Top Up works, view answers to most frequently asked questions, or contact us.