There is a major shake-up happening in the European mobile infrastructure market, with Vodafone planning to spin off its towers, across its key markets, into a separate company, and Telefónica considering a similar move. Now, Spanish towerco Cellnex is to pay £2bn ($2.45bn) for the telecoms assets of Arqiva, the UK’s largest pure-play tower operator. That will leave the UK company with just its original business, running broadcast infrastructure. Cellnex, which operates in several European markets, notably Spain and Italy, will take control of Arqiva’s 7,400 cellular sites with the right to market an additional 900 sites. Through the deal, Cellnex inherits contracts with all four UK mobile network operators, or at least, the infrastructure networks they share – Vodafone…