What makes our network better for business?

Your connectivity is the foundation on which to build your business. Our digital first 5G network gives you the competitive edge in innovation, increased efficiency, and smarter remote working.

99% outdoor UK coverage

Our combined 3G/4G network covers 99% of the outdoor population.

Committed to 5G

With 4,700 5G sites across 650 UK towns and cities.

Super-fast speeds

Multitask with ease and switch between business apps, with faster 5G.

Digital-first from day one

Which means a seamless experience both now and into the future.

Robust, secure network

We carry 31% of the UK's mobile traffic. [1]

Built for data

Our customers use 2.2 times more data than the average UK user. [1]

Proud to be the network offering businesses more

We're built digital-first

Our network is future-proof. We’re built digital-first from the ground up, partnering with the best in the market to provide a seamless experience. This is best for your business, your team, and most importantly your customers.

Data is our network DNA

We're building capability for high-data traffic, and our unlimited data plans are designed with your business in mind, enabling you to use your data however your business needs it. Enjoy the flexibility to achieve your business goals. All this with the latest technology, and a fully virtualised Cloud Core Network.

We've got you covered

As The UK's Fastest 5G network [2], we offer the competitive edge. Our 19 data centres connect teams, clients, and remote customers. This is why so many organisations in the healthcare, construction, and aviation industries have chosen the resilience of our network.

Work abroad for less

A great business needs efficiency and flexibility. With Three Business roaming solutions, you can stay connected no matter where you are in the world, without going over budget

What do our customers say?

“The reliability and performance of Three’s network have been impressive. The stability of their network ensures that our teams can stay connected and productive, regardless of their location.”

“Overall we’ve found the coverage to be excellent – even in rural areas – and much better than other providers we considered. This is critical for our company, as being able to operate in remote areas helps us stand out against our competitors.”

“Connectivity has been outstanding. The 5G connection is by far the fastest and most reliable.”

See how businesses like yours are using our connectivity to get ahead

We reward our customers

Why Spotted Bee trusts Three Business to deliver reliable 5G

"For us it was simple: the 5G offering and the price. We chose Three Business first and would not want to move.
Our Three Business connection is fast and reliable, and the Three network is now working better than ever.
I have a point of contact to help me resolve any issues that crop up and flex our connections up and down as needed."

- Rob Galkoff, Managing Director at Spotted Bee

Coverage and network status checker

New to Three Business? Use our coverage checker below to see if you can access our award-winning 5G network. If you’re already with us, you can use our Network Status Checker to see if we have maintenance going on.

Information message

We’re phasing out our 3G network and aim to switch it off by the end of 2024.

We’re not alone in doing this – other networks in the UK and abroad are in the process of phasing out their 3G service, too.

Want to find out more about our 3G switch off? Head to our 3G switch-off page. For specific information about your local area, please use our coverage checker below.

Check coverage in your area

Enter your postcode

Things that can affect your signal

Building materials

Unfortunately, no network can tell you how strong your signal will be indoors. That's because the signal strength needed to pass through walls and windows varies from building to building.

Issues with your device or account

Your SIM card, phone settings, a low battery, and running older software can all affect the signal. If your account is on hold, that will also prevent use of the network.

Location

The closer you are to a mast, the stronger your signal. It can also be affected by geographical things, like hills, valleys, forests, etc.

Extreme weather

Strong winds, flooding, storms, falling trees, etc. can all affect phone masts.

Temporary structures

Cranes or scaffolding, for example, can obstruct the signal.

Temporary network outages

When we're carrying out planned or unplanned maintenance, your signal will probably be affected.

We’re trusted by:

Manufacturing

100 connections

Construction

300 connections

Healthcare

80 connections

Aviation 

275 connections

Waste Management

300 connections

Education

550 connections

Local Government

240 connections

Shipping & Offshore

330 connections

Security

60 connections

Frequently Asked Questions

They're the 3rd, 4th and 5th generations of mobile network. The main difference between them is the speeds they can reach, with each generation hitting faster speeds as they go along. This affects how smooth your online experience is.

Our 5G Business Broadband hub can get you online as soon as tomorrow, all with unlimited data. No landline. No engineer. No waiting. It's broadband, but better.

Location’s usually the main thing that affects coverage – if you’re far away from a mast, your signal will be weaker.

But coverage can also be affected by things like trees, being in a basement or underground, travelling, and even your phone itself. Getting higher up, opening windows, and upgrading your phone can all help improve your signal.

5G Business Network blogs

How 5G connectivity is transforming British industry

The impact of poor connectivity on UK SMEs

5G Business Broadband buyer’s guide

Why choose Three for Business?

More about our network

According to Ookla, our 5G's the fastest around. [2]

View all case studies

Join over half a million business customers customers across all industries who trust us for seamless connectivity.