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Contact Onecom

Contact Onecom

This is our out-of-hours contact form. Our business hours are Mon – Fri 8am – 6pm.
We will get back to you within 3 business days. For a quicker response you can call, Live Chat or WhatsApp us during business hours

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Onecom is the UK’s largest independent business telecoms provider, delivering an unparalleled service to its customers.

We are aware of a current issue with Vodafone’s January invoice, with line rental being billed at a higher than normal rate. If your invoice is incorrect, you will receive a full credit. Thank you for your patience.

For all enquiries please contact us on:

03300 888 999


If you would like to email us please see details below for each department:


Get Support

General Enquiries

Email general enquiries

Sales Enquiries

Email our sales team

System Support

Mitel & Samsung System Support


Onecom Locations

Fixed Line & Broadband

Fixed Line, Data, WAN & Hosted Telephony Support