What is Three UK's NAICS code?

Three UK's NAICS code is 517 (Telecommunications).

Insights

5G leadership Three UK holds the most exclusive 5G spectrum among UK operators, presenting a strong upsell path for premium data plans, enterprise bandwidth solutions, and value-added services to businesses seeking high-performance connectivity.

Network reach With coverage spanning 99% of the UK outdoor population and a large share of mobile data traffic, there are opportunities to target nationwide enterprises, remote field teams, and multi-site operations needing reliable, wide-area connectivity.

Sponsorship leverage Official partnerships with major brands and community initiatives create openings to offer sponsorship-aligned connectivity bundles, event-level data services, and CSR-aligned campaigns for brands seeking enhanced visibility and engagement.

5G issues reserve Reported regional 5G connectivity challenges suggest a sales window for enterprise-grade network assurance, service level agreements, and dedicated support packages to mitigate outages for critical business operations.

Beta cross-platform Early beta support for cross-platform features on iOS and Android indicates a potential for selling developer-friendly connectivity and integration capabilities, plus collaboration on device-agnostic experiences for consumers and SME apps.

Three UK Tech Stack

Three UK uses 8 technology products and services including Google Ads, Qlik, Amazon Web Services, and more. Explore Three UK's tech stack below.

Three UK Email Formats	Example	Percentage
First.Last@three.co.uk	John.Doe@three.co.uk	96%
FLast@three.co.uk	JDoe@three.co.uk	2%
Last.First@three.co.uk	Doe.John@three.co.uk	1%
First@three.co.uk	John@three.co.uk	1%

Three UK Email Formats

Example

Percentage

First.Last@three.co.uk

John.Doe@three.co.uk

96%

FLast@three.co.uk

JDoe@three.co.uk

Last.First@three.co.uk

Doe.John@three.co.uk

First@three.co.uk

John@three.co.uk

Frequently Asked Questions

What is Three UK's phone number?

You can contact Three UK's main corporate office by phone at

+44-870-733-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Three UK's stock symbol?

Three UK is a publicly traded company; the company's stock symbol is MMM.

What is Three UK's official website and social media links?

Three UK's official website is three.co.uk and has social profiles on LinkedIn.

How much revenue does Three UK generate?

As of October 2026, Three UK's annual revenue is estimated to be $1B - $10B.

What is Three UK's SIC code and NAICS code?

Three UK's SIC code is 4812 - Radiotelephone Communications and NAICS code is 517 - Telecommunications.

How many employees does Three UK have currently?

As of October 2026, Three UK has approximately 5K employees across 6 continents, including Europe, Asia and North America. Key team members include Chief Executive Officer: F. Y., Chief Executive Officer: C. N. and Cto Planning And Delivery Director: P. O. Explore Three UK's employee directory with LeadIQ.

What industry does Three UK belong to?

Three UK operates in the Telecommunications industry.

What technology does Three UK use?

Three UK's tech stack includes Google Ads, Qlik, Amazon Web Services, Adobe Experience Manager, Google BigQuery, Microsoft 365, Oracle Eloqua and SEMrush.

What is Three UK's email format?

Three UK's email format typically follows the pattern of First.Last@three.co.uk. Find more Three UK email formats with LeadIQ.

When was Three UK founded?

Three UK was founded in 2003.

Three UK

Q: What is Three UK's official website and social media links?

Three UK's official website is three.co.uk. Three UK has social profiles on LinkedIn.

Q: How many employees does Three UK have currently?

Three UK has approximately 5K employees.

Q: What technology does Three UK use?

Three UK's tech stack includes Lightweight Directory Access Protocol, Akamai Bot Manager, Meta, Cisco Routers, LeadIn.

TelecommunicationsEngland, United Kingdom5001-10000 Employees

Three UK operates a large mobile network in the United Kingdom, based in Reading, England, and was founded in 2003 with the aim of challenging the mobile industry. The network covers 99% of the UK outdoor population and handles a substantial share of mobile data traffic. The operator holds more 5G-exclusive spectrum than any other UK network, enabling enhanced experiences as 5G is deployed. 

Beyond connectivity, Three UK maintains sponsorships with Chelsea FC’s men’s and women’s teams and Channel 4’s Gogglebox. It is also a partner of Samaritans, supporting efforts to connect people with emotional support. In 2025, the company announced a partnership with Airtime Rewards to offer customers money off their monthly bill.

Insights

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Three UK Tech Stack

Media & News

Three launches a premium 5G service in the United Kingdom on Sep 3rd '26, offering speeds of up to four times those on its standard network for an additional charge.

Juliet Callaghan leaves Three and rejoins FTI Consulting as senior managing director and UK head of technology, media and telecommunications in the United Kingdom on Jul 9th '26.

In 2023, Cellnex and Three partner under a similar collaboration agreement.

Three has issues with 5G connectivity across parts of the town in the United Kingdom, with the disruption first reported on Jun 1st '26 still unresolved on Jun 4th '26 and customers facing continued difficulties accessing mobile signal and 5G data.

Three introduces beta support for the cross-platform feature on iOS and Android devices in the United Kingdom.

Oly Meade leaves Three, where he serves as Sponsorship Lead, and joins Think Beyond as Senior Director to lead its new service on May 6th '26.

Three has issues with poor quality of phone signal in Pembrokeshire, United Kingdom, and the problem does not look likely to change soon as of Apr 26th '26.

Three UK's Email Address Formats