Telefónica, S.A. is Spain's leading telecommunications operator. The group's activity is organized around 3 areas:
- mobile telephony services: 298.6 million subscribers at the end of 2023;
- fixed telecommunications services: fixed telephony (26.3 million telephone lines installed at the end of 2023), Internet access (26.8 million ADSL lines), pay-TV (10.2 million subscribers), etc.;
- business telecommunications services: mobile telephony (22.1 million customers at the end of 2023) and fixed-line telecommunications (3.6 million lines installed).
Net sales are distributed geographically as follows: Spain (31.1%), Brazil (23.7%), Latin America (20.6%), Germany (21.2%) and other (3.4%).