    <SEC-DOCUMENT>0000814052-24-000032-index.html : 20240223
    <SEC-HEADER>0000814052-24-000032.hdr.sgml : 20240223
    <ACCEPTANCE-DATETIME>20240223133435
    ACCESSION NUMBER:		0000814052-24-000032
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		2
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240223
    DATE AS OF CHANGE:		20240223

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			TELEFONICA S A
    		CENTRAL INDEX KEY:			0000814052
    		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
    		ORGANIZATION NAME:           	06 Technology
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			U3
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-09531
    		FILM NUMBER:		24669729

    	BUSINESS ADDRESS:
    		STREET 1:		GRAN VIA 28
    		CITY:			28013 MADRID
    		STATE:			U3
    		ZIP:			00000
    		BUSINESS PHONE:		00 34 91 584 0640

    	MAIL ADDRESS:
    		STREET 1:		GRAN VIA 28
    		CITY:			28013 MADRID
    		STATE:			U3
    		ZIP:			00000

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NATIONAL TELEPHONE COMPANY OF SPAIN
    		DATE OF NAME CHANGE:	19880708
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>form6kannacc231.htm
    <DESCRIPTION>6-K
    <TEXT>
    Document 1 - file: form6kannacc231.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99
    <SEQUENCE>2
    <FILENAME>tef-annualaccounts2023.pdf
    <DESCRIPTION>EX-99
    <TEXT>
    Document 2 - file: tef-annualaccounts2023.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>