About Three
Learn more about Three Ireland.
Learn more about Three

Three is one of Ireland’s leading mobile operators with 35% market share and almost 2.4 million customers (as of August 2020).

Our network is built for data; with 98.7% 4G coverage, and we carry over 65% of all mobile data on our network, that’s more than all other operators combined. Three has over 1400 employees throughout Ireland, with our head office in Dublin, our award-winning contact centre in Limerick where our 450-strong team manages 1.4 million calls every year, and 63 retail stores nationwide.

Three has to date invested more than €2 billion in building our business in Ireland. This includes a €400 million investment in upgrading and expanding our network and in Three’s digital transformation, which will deliver a cutting-edge experience for both our customers and our employees.

Annually, Three continues to invest over €100 million into our business to ensure we continue to deliver the best network, experience and service for our customers.

At Three we strive to provide our customers with a better connected life through meaningful products, best in class service and a connected network experience.

Three is 100% owned by CK Hutchison Holdings Limited (CK Hutchison), a renowned multinational conglomerate committed to innovation and technology with businesses spanning the globe. With operations in over 50 countries and over 300,000 employees worldwide, CK Hutchison has five core businesses - ports and related services, retail, infrastructure, energy and telecommunications.

Here you'll find general information about us, the services we offer and how to get in touch with us. In this code of practice we tell you about your rights as a mobile customer as well as your responsibilities when joining us. And we explain our commitment to you as a customer.

Three's Code of Practice:


Three Ireland Services (Hutchison) Limited (formerly O2) code of practice:

Corporate Information

Company name

Three Ireland (Hutchison) Limited

Company Number


Place of Registration


Registered Address

28/29 Sir John Rogerson's Quay, Dublin 2, Ireland


Phone: +353-1-5426300 Fax: +353-1-5426301

VAT Number