EE is investing £25 million in Northern Ireland in a bid to deliver improved mobile broadband services across the region.
The firm is carrying out upgrade work on its existing 2G and 3G networks, helping to deliver faster mobile services to 94 per cent of the population.
In addition, the firm is launching super-fast 4G mobile services in Belfast today (December 25th).
Arlene Foster, the Enterprise Minister for Northern Ireland, said this is "positive news" for Northern Ireland as a whole.
"I am pleased to see that we are one of the first communities in the UK to benefit from this exciting technology," she stated.
"My department recognises the importance of digital infrastructure in the development of the economy in Northern Ireland."
Ms Foster said consumers and businesses will also benefit from EE's major 2G and 3G network investment and upgrade plans that will deliver a faster, more reliable network for much of Northern Ireland by spring 2013.
David Salam, Director of Network Strategy and Design at EE, noted that the network upgrade programme is "essential" for customers across Northern Ireland.
It will enable one of the fastest, most efficient mobile networks in Europe, he claimed.
"We're delighted to be able to deliver this network, and apologise for any inconvenience caused by any temporary losses of service during this exciting network upgrade programme," Mr Salam stated.
EE initially launched its 4G network in 11 cities across the UK, using its spare capacity in the 1,800MHz frequency band.