Telefónica

Telefónica, S.A.
	Logo since 2021
	Headquarters in Madrid, Spain
Formerly	Compañía Telefónica Nacional de España (1924–1984)
Company type	Public
Traded as	BMAD: TEF; NYSE: TEF (ADR); BVL: TEF (ADR)
ISIN	ES0178430E18
Industry	Telecommunications
Founded	19 April 1924
Headquarters	Telefónica Building, Madrid, Spain; Registered office; Distrito Telefónica, Madrid, Spain; Corporate headquarters
Area served	Europe, Mainland China, United States, Latin America
Key people	Marc Murtra; (chairman and CEO)
Products	Fixedline telephony; Mobile telephony; Broadband internet; Digital television;
Revenue	€39.2 billion (2021)
Operating income	€13.5 billion (2021)
Net income	€8.137billion (2021)
Total assets	€109.2 billion (2021)
Total equity	€28.6 billion (2021)
Number of employees	104,150 (2021)
Subsidiaries	Movistar; Virgin Media O2 (50%); Telefónica Germany; Vivo; Telxius;
Website	telefonica.com

Telefónica, S.A. (Spanish pronunciation: [teleˈfonika]) is a Spanish multinational telecommunications company with registered office and headquarters located in two different places, both in Madrid, Spain. It is one of the largest telephone operators and mobile network providers in the world. It provides fixed and mobile telephony, broadband, and subscription television, operating in Europe and the Americas.

As well as the Telefónica brand, it also trades as Movistar, O2, and Vivo. The company is a component of the Euro Stoxx 50 stock market index. On 15 April 2012, Telefónica shut down TVA and Ajacto, which unified the brand into Vivo.