No.1 Provider of UK Business Numbers - Windsor Telecom

Memorable phone numbers and VoIP for your business

Sound more professional and drive more inbound calls

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Our Top Selling Number Ranges

We have millions of memorable business phone numbers for you to choose from across every UK range.

Find the best number for your business and start your free trial today.


Exclusively available to not-for-profit and charity organisations, 030 numbers make donating easier and are a recognised badge-of-honour.

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Earn 2p per minute from calls to your organisation and offset other business overheads with a nationwide 0844 Number.

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Help Me Choose My Business Number

Try our exclusive simple-to-use wizard and let us help you find the best phone number range to suit your business.

Why Choose Windsor Telecom?

Since 1999 Windsor Telecom has been at the forefront of Inbound Telecoms – providing memorable numbers and world-class call handling services to businesses across the UK.

Call Handling

Windsor Telecom has a vast range of call handling services available to enhance your customer experience, improve business efficiency and increase your revenues.

Need to Talk?

Maybe you don’t have time to read all the details, or you know exactly what you want right now – simply call us now and let’s get started!

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Our Red Carpet Service

We are famous for our “Red Carpet” customer service. Read our reviews on Trustpilot to see why our customers love us!


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Cloud Services

Choose your business phone number from Windsor Telecom and gain access to a wide selection of impressive, cloud-based solutions to help your business deliver long term success.



Make low-cost calls over the Internet and future-proof your business telecoms with a VoIP phone system.

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Case Studies

Case Studies

Over the past two decades, we have helped a wide range of UK businesses exceed their business goals and objectives.

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Take a look through our recent news to catch up on all the latest happenings here at Windsor Telecom.

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Our downloadable PDF guides give you all the in-depth information you might need to choose any one of our business phone numbers.

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A Windsor Telecom customer is a happy customer.

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