Master Services Agreement with Level 3

CITYFIBRE INFRASTRUCTURE HOLDINGS PLC

('CityFibre' or the 'Group' or the 'Company')

CityFibre agrees Master Services Agreement with Level 3

First call off in Edinburgh under new agreement

CityFibre (AIM: CITY), a leading designer, builder, owner, and operator of fibre optic infrastructure in UK towns and cities, is pleased to announce the signing of a national Master Services Agreement ('MSA') with international network, voice and data services provider, Level 3 Communications Limited ('Level 3'). The Company also announces today the first call off under the MSA, across the Group's Edinburgh network.

The MSA sets out standard terms and pricing under which Level 3 can procure fibre from CityFibre's expanded network to service its numerous enterprise customers across the UK.

The first call-off under the MSA is a dark fibre metro ring on CityFibre's Edinburgh network, to which Level 3 will connect local customer sites.

Greg Mesch, Chief Executive of CityFibre, commented:

"We are delighted to be able to announce both the MSA and the first commercial call-off in Edinburgh with Level 3. This marks an innovative solution for CityFibre customers, in providing both a resilient dark fibre metro ring as well as additional connections to customer locations.

"This agreement demonstrates the enhanced relevance our UK footprint now has to international service providers providing solutions to the UK market. Clearly, with our expanded presence in 37 towns and cities across the UK, we offer increased scope for Level 3 to migrate customers to on-net dark fibre connections with significant advantages in terms of cost and solution architecture."

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About CityFibre:

CityFibre is the national builder of Gigabit Cities, as the UK's largest alternative provider of wholesale fibre network infrastructure. It has major metro duct and fibre footprints in 37 cities across the UK and a national long distance network that connects these cities to major data-centres across the UK and to key peering points in London.

The company has an extensive customer base spanning service integrators, enterprise and consumer service providers and mobile operators. Providing a portfolio of active and dark fibre services, CityFibre's networks address 26,000 public sites, 7,400 mobile masts, 260,000 businesses and 3.7 million homes.

CityFibre is based in London, United Kingdom, and its shares trade on the AIM Market of the London Stock Exchange (AIM: CITY). Further information on the company can be found at www.cityfibre.com