Cellnex's rapid expansion will give the company more than 100,000 tower sites in its portfolio, compared with about 82,000 towers for Vantage, which was spun out of Vodafone Group.

American Tower, which has nearly 200,000 towers globally, has a quarter of that number in Europe, and about 170,000 towers are still owned by mobile network operators.

Here are some of the tower-related announcements since 2020:

February, 2021: Cellnex reaches agreement with Altice and Starlight Holdco to acquire Hivory, which has around 10,500 masts in France, planning an initial investment of 5.2 billion euros ($6.3 billion).

February, 2021: Cellnex announce https://www.reuters.com/article/cellnex-results/update-1-cellnex-expects-2021-earnings-to-jump-50-expands-in-poland-idUSL1N2KW0OIs a 1.6 billion euro deal with Poland's Cyfrowy Polsat to take over Polkomtel Infrastrukture, which manages around 7,000 masts.

February, 2021: Vodafone plans https://www.reuters.com/article/us-vodafone-towers-ipo-idUSKBN2A22DV to float Vantage Towers, its European mobile phone masts business, on the Frankfurt stock exchange in March in a share offering worth about 3 billion euros, three people close to the matter say.

February, 2021: Orange announce https://www.orange.com/en/newsroom/press-releases/2021/orange-takes-major-step-forward-creation-totem-its-european-towercos the launch of its European masts company TOTEM, which will house its 25,500 towers.

January, 2021: Spanish telecom company Telefonica sa https://www.reuters.com/article/telefonica-ma-american-tower-idUSL1N2JO0EGys it has agreed to sell its mobile phone masts in Europe and Latin America to U.S.-based telecom infrastructure operator American Towers for 7.7 billion euros in cash.

January, 2021: German telecoms group Deutsche Telekom and Cellnex sa https://www.reuters.com/article/us-deutsche-telekom-towers-cellnex-telec-idUSKBN29Q0Q7y they will combine their tower businesses in the Netherlands and set up a joint fund to invest in digital infrastructure.

November, 2020: Cellnex says it will buy 24,600 towers and sites that CK Hutchison owned in Europe for a total 10 billion euros.

April, 2020: Cellnex sa https://www.reuters.com/article/us-cellnex-telecom-m-a-nos-sgps-idUSKCN21W0O8ys it had agreed to acquire Portuguese mobile operator NOS's telecom-tower business for an initial 375 million euros.

($1 = 0.8277 euros)

(Reporting by Supantha Mukherjee in Stockholm and Isla Binnie in Madrid; Editing by Jan Harvey)