Out of Hours Support

Welcome to the Out Of Hours Support Page.

If you require assistance outside of business hours please refer to the below list.  The support page is split into network and service.

Please be advised service from the networks is limited outside of business hours.


If you have a problem with your Frontier mobile connection, please follow the instructions according to your network.  Please have your Business Account Number ready.

Network Service Contact Number Actions Available
Vodafone Mobile Only 03333040191 Lost & Stolen Bars Only
EE Mobile Only 0800 956 6000 SIM Swaps Lost & Stolen Bars
O2 Mobile Only 0344 809 0202 Lost & Stolen Bars Only


Horizon Telephone Systems

If you would like to make changes to your Horizon Telephone System, you can perform Diverts by logging on to your customer portal here.

Vodafone Fixed Line, Broadband and One Net Telephone Systems

Vodafone One Net Telephone System 03333040191 Lost & Stolen Bars
Vodafone Fixed Line and Broadband 03333040191 Outage support – issues logged only

You can also perform updates and set diverts to your Vodafone One Net Telephone System on the Feature Management Portal, you can find a step by step guide on how to do this here.

If you have a non-urgent request, please email your Account Manager directly, contact the Customer Service team on customerservice@thefrontiergroup.co.uk, or fill in the form below and a team member will respond during office hours.

Non-Urgent Queries

Got a question?

We're here to help. Check out our case studies, send us an email, or call us on 0800 124 4348.