Vodafone and Orange aim to provide six million households and workplaces in Spain with FTTH technology within five years after signing a co-investment agreement.
The deal is expected to require €1 billion in capex, according to the operators.
In a statement, Vodafone and Orange said the deal will increase fibre deployment efficiencies and maximise returns on investment for both operators.
Under the terms of the agreement, which will cover up 50 major cities, the two operators will each deploy street-level fibre in complementary geographies.
The fibre will be owned independently but will share the same technical specifications to ensure compatibility as a single network, and each partner will have guaranteed access to the whole infrastructure.
They will also each deploy their own in-building fibre, guaranteeing access to each other, and will together request access to any third party vertical infrastructure.
Third parties willing to co-invest are also invited to join the partnership.
Vodafone and Orange said they will work with regulators to ensure they get access to Telefónica’s ducts in order to facilitate rapid mass deployment of horizontal infrastructure.
According to the FTTH Council figures, Spain entered the Top 20 countries for FTTH/B subscriber numbers for the first time in the first half of last year.