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Appendix VI: Key Regulatory Issues and Concessions and Licenses Held by the Telefonica Group - Narrative (Details) |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
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Sep. 21, 2021 state | Feb. 22, 2021 EUR (€) | Dec. 11, 2018 | Jan. 10, 2017 | Dec. 14, 2016 MHz_band | Aug. 30, 2016 | Apr. 27, 2016 | Jul. 31, 2021 EUR (€) | Apr. 30, 2021 EUR (€) | Jul. 31, 2013 | Aug. 31, 2009 | Dec. 31, 2022 EUR (€) megabyte_per_second | Oct. 07, 2021 municipality | Oct. 06, 2021 municipality | Dec. 31, 2020 market | Nov. 30, 2020 market
Disclosure of detailed information about service concession arrangements [abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
EECC, period to transpose |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |
EECC, harmonization of licenses, period |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |
European Commission infringement proceedings, number of member states | state | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Relevant Market Recommendation, markets susceptible to ex ante regulation | market |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 4
EC maximum mobile termination rate |  |  |  |  |  |  |  |  | € 0.2 |  |  |  |  |  |  |
EC maximum fixed termination rate |  |  |  |  |  |  |  |  | € 0.07 |  |  |  |  |  |  |
European Council, Recovery And Resilience Mechanism, funds |  |  |  |  |  |  |  |  |  |  |  | € 750,000,000,000 |  |  |  |
European Council, Recovery And Resilience Mechanism, percentage of funds devoted to digitalization |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |
Regulations on digital services, potential fine on total worldwide turnover, first offense |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |
Regulations on digital services, potential fine on total worldwide turnover, repeat offense |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |
Percentage of fines issued by the general data protection regulation |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |
Percentage of fines issued |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |
Frequency of band (MHz) | MHz_band |  |  |  |  | 700 |  |  |  |  |  |  |  |  |  |  |
New broadband ethernet service, monthly rate |  |  |  |  |  |  |  |  |  |  |  | € 16.68 |  |  |  |
Broadband market analysis, new generation networks, number of municipalities | municipality |  |  |  |  |  |  |  |  |  |  |  |  | 696 | 66 |  |
Broadband market analysis, new generation networks, percentage of municipalities where Spanish population lives |  |  |  |  |  |  |  |  |  |  |  |  | 70.50% |  |  |
Spectrum license acquisition, amount paid |  | € 21,000,000 |  |  |  |  |  | € 310,000,000 |  |  |  |  |  |  |  |
Percentage of fixed annual provision of invoiced operating income |  |  |  |  |  |  |  |  |  |  | 0.90% |  |  |  |  |
Percentage of gross revenue for open concessionaire companies |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |
Percentage of gross revenue for open concessionaire companies to provide pay TV services |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |
Speed of network infrastructure access for data transmission in copper pairs or coaxial cables (Mbit per second) | megabyte_per_second |  |  |  |  |  |  |  |  |  |  |  | 12 |  |  |  |
Speed of wholesale fixed network infrastructure to transport local and long distance transmission (Mbit per second) | megabyte_per_second |  |  |  |  |  |  |  |  |  |  |  | 34 |  |  |  |
Percentage of foreign direct investment allowed |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Percentage of increase in administrative fines |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |
Period of applicable tariffs for services provided |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |

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