Three UK has entered into a £100 million infrastructure investment agreement with SSE Enterprise Telecoms to enhance connectivity and deliver the UK’s fastest 5G network across hundreds of towns and cities.

The investment will also enhance Three UK’s 4G service, providing increased capacity to meet demand for data.

SSE Enterprise Telecoms will deliver over 450 unbundled BT Exchanges across the UK as part of the second phase of the network rollout. The associated fibre connectivity will be linked into Three UK’s network.

This will mean SSE Enterprise Telecoms’ fibre network, which currently stretches across 20,000 km, will reach over 30,000 km, providing a unique high capacity and resilient network for all of Three UK’s customers.

Susan Buttsworth, chief operating officer of Three UK, said: “We are investing significantly to transform our entire network experience which will support our customers who use three times more data than the average UK consumer.”

David Molony, principal analyst at Omdia, said: “Omdia knows that coinnovation between service providers and enterprises – as well as between enterprises – will be one of the keys to success with 5G and edge computing.”

“We are supporting the industry’s most competitive network for 5G in terms of bandwidth, speed and reliability. This will allow Three UK to meet the future demands that we know are coming from businesses and consumers,” Sarah Mills, sector director for Network Operators, SSE Enterprise Telecoms said.

An average Three customer uses 3.5 times more mobile data than the industry average and its network today covers 99 percent of the UK population. Three has the highest Net Promoter Score (NPS) of any of the mobile network operators at +19, alongside +24 for its Employee NPS.

SSE Enterprise Telecoms operates a 20,000+km private telecoms network and an estate of 90 commercial data centres that span the UK.