Telefonica in May announced a £31bn merger of its O2 operation in the UK with Virgin Media, which is owned by US giant Liberty Global.
He said the Brexit trade deal is 'a good one for consumers in the UK and offers much-needed reassurance and certainty for a number of sectors'.
Leaving the EU will give Britain added independence and 'renewed self-confidence,' and an opportunity to 'blaze the trail' in the digital revolution.
Jose Maria Alvarez-Pallete, the chief executive of Spanish giant Telefonica, which owns O2 in the UK, welcomed the Brexit deal signed over Christmas, saying it 'marks an exciting new chapter in Britain's history'.
Having left the EU, Britain must modernise its economy to capitalise on the digital revolution including by Ruth Sunderland Business Editor 5G, the internet of things, and artificial intelligence.