Who are Telefónica, S.A.'s main suppliers?

Telefónica, S.A. (TEFOF) key suppliers include: BBVXF, Liberty Latin America Ltd., TCMFF, TELFY, Telecom Argentina S.A. and 1 more. View the full supplier network at chainsifter.com/chain/TEFOF.

Who are Telefónica, S.A.'s major customers?

Telefónica, S.A. (TEFOF) key customers include: Source Capital, Source Capital, TCMFF, TELFY, Telecom Argentina S.A. and 14 more. View the full customer network at chainsifter.com/chain/TEFOF.

What sector is Telefónica, S.A. in?

Telefónica, S.A. (TEFOF) operates in the general sector. ChainSifter tracks its verified supply chain relationships including suppliers, customers, and strategic partners.

Telefónica, S.A. Suppliers, Customers & Supply Chain (TEFOF)

6Suppliers

19Customers

1Debt Items

20Related Chains

Source-Backed Evidence Depth

Telefónica, S.A. (TEFOF) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

27Total relationships

1Distinct source URLs

2High confidence

0.693Average confidence

2026-10-29Latest database update

ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Telefónica, S.A. Suppliers

Ticker	Name	Confidence	Evidence
BBVXF	BBVXF	72%	Reciprocal relationship from BBVXF graph: unted to € 4 million. In the 2016 and 2015 the impairment recognized were € 157 and € 1 million, respectively (see Note 47). For the rest of debt securities,…
LILA	Liberty Latin America Ltd.	72%	Reciprocal relationship from LILA graph: MPR and (c) Liberty USVI. The Senior Secured Covenant Group does not include the Unrestricted Subsidiaries. Share Repurchase Programs Programs approved by our…
TCMFF	TCMFF	72%	Reciprocal relationship from TCMFF graph: rmerly Centurylink, Level 3 Communication, and Global Crossing), IPlan, Telecentro, TMA (primarily in the Southern Region), and Personal (primarily in the No…
TELFY	TELFY	72%	Reciprocal relationship from TELFY graph: mmunications. By virtue of the Constitution amendment, the Federal Communication Institute will be in charge of regulating the dominant operators or with SMP…
TEO	Telecom Argentina S.A.	72%	Reciprocal relationship from TEO graph: Reciprocal relationship from TEFOF graph: Reciprocal relationship from TEO graph: rmerly Centurylink, Level 3 Communication, and Global Crossing), IPlan, Telec…
VIV	Telefônica Brasil S.A.	72%	Reciprocal relationship from VIV graph: Reciprocal relationship from TEFOF graph: Reciprocal relationship from VIV graph: ancial Income Other income with foreign exchange and monetary variation (judi…

Telefónica, S.A. Customers

Ticker	Name	Confidence	Evidence
SOR	Source Capital	72%	Reciprocal relationship from SOR graph: Reciprocal relationship from TEFOF graph: nd infrastructure operation regarding the IT transformation service. The agreements each have a duration of 7 years a…
SOR	Source Capital	72%	nd infrastructure operation regarding the IT transformation service. The agreements each have a duration of 7 years and will be automatically extended up to a maximum of 2 additional years, absent pr…
TCMFF	TCMFF	72%	Reciprocal relationship from TCMFF graph: Reciprocal relationship from TEFOF graph: Reciprocal relationship from TCMFF graph: rmerly Centurylink, Level 3 Communication, and Global Crossing), IPlan, T…
TELFY	TELFY	72%	Reciprocal relationship from TELFY graph: nominal amounts are as follows: Outstanding principal balance (millions of euros) Descriptive name summary Contractual limit amount (millions) Currency 12/31…
TEO	Telecom Argentina S.A.	72%	Reciprocal relationship from TEO graph: Reciprocal relationship from TEFOF graph: astructure operation regarding the IT transformation service. The agreements each have a duration of seven years and …
TEO	Telecom Argentina S.A.	72%	astructure operation regarding the IT transformation service. The agreements each have a duration of seven years and will be automatically extended up to a maximum of two additional years, absent pri…
VIV	Telefônica Brasil S.A.	72%	Reciprocal relationship from VIV graph: Reciprocal relationship from TEFOF graph: nd infrastructure operation regarding the IT transformation service. The agreements each have a duration of 7 years a…
VIV	Telefônica Brasil S.A.	72%	nd infrastructure operation regarding the IT transformation service. The agreements each have a duration of 7 years and will be automatically extended up to a maximum of 2 additional years, absent pr…
ACTUAL-GROUP	ACTUAL-GROUP	62%	ociated with such contract are recognized, unless the expected amortization period is one year or less, in which case they are expensed as incurred. For the purposes of allocating to profit or loss t…
BE-TERNA-GROUP	BE-TERNA-GROUP	62%	nancial Statements—Legal Proceedings—ICSID Arbitration Telefónica, S.A. vs. Republic of Colombia”. Revenues in 2024 totaled 41,315 million euros, up 1.6% year-on-year compared to 2023, due mainly to …
LTM	LATAM Airlines Group S.A.	62%	Reciprocal relationship from LTM graph: Reciprocal relationship from TEFOF graph: Reciprocal relationship from LTM graph: Reciprocal relationship from TEFOF graph: Reciprocal relationship from LTM gr…
MOBILE-TELECOMMUNICATION-COMPANY	MOBILE-TELECOMMUNICATION-COMPANY	62%	sons or entities involved in terrorism or the proliferation of weapons of mass destruction during the period covered by the annual or quarterly report. Disclosure is required even when the activities…
MOBILFUNK-GMBH	MOBILFUNK-GMBH	62%	rs, suppliers and partners. Since 2021 a specific monitoring has been carried out and action plans have been developed by the Group with respect to the supply chain challenges resulting from the arme…
OI-GROUP	OI-GROUP	62%	idated financial statements as of and for the year ended December 31, 2023 was the closing exchange rate as of December 31, 2023 which was 893.45 Argentine pesos per euro (189.08 Argentine pesos per …
TELECOMMUNICATION-KISH-CO	TELECOMMUNICATION-KISH-CO	62%	sons or entities involved in terrorism or the proliferation of weapons of mass destruction during the period covered by the annual or quarterly report. Disclosure is required even when the activities…
UNITED-KINGDOM-VMED-O2-UK-LIMITED	UNITED-KINGDOM-VMED-O2-UK-LIMITED	62%	the entry of new competitors, market concentration via mergers or changes in control at key competitors in the markets where we operate, as well as the impact of any failure to comply with any antitr…
VMED-O2-UK-LIMITED	VMED-O2-UK-LIMITED	62%	l television signal to analogue for viewing on a conventional set, or that enables cable or satellite television to be viewed. "Tbps" means terabytes per second. "Tracker" is a special server which c…
VOD	Vodafone Group Public Limited Company	62%	Reciprocal relationship from VOD graph: Reciprocal relationship from TEFOF graph: areas not yet covered by the new 1&1 mobile network and in particular includes access to the 5G network of Vodafone G…
VODAFONE-GROUP	VODAFONE-GROUP	62%	areas not yet covered by the new 1&1 mobile network and in particular includes access to the 5G network of Vodafone Group, including mobile communication standards 2G and 4G and future mobile communi…

Telefónica, S.A. Debt Obligations

Instrument	Description	Confidence	Evidence
TEFOF-DEBT	Debt stack $48.8B	90%	Market cache reports total debt of $48.8B.

Telefónica, S.A. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Telefónica, S.A..

Telefónica, S.A. Ownership

Holder	Name	Confidence	Evidence
TEFOF-OWNER-GENERALI-INVESTMENTS-CEE-INVESTI	Generali Investments CEE, investicni spolecnost, a.s.	90%	13F overlay lists Generali Investments CEE, investicni spolecnost, a.s. as top holder; 1 tracked holders.

Telefónica, S.A. Extended Supply Chain Network

Ticker	Name	Chain Index	Hops	Relationship Types
VOD	Vodafone Group Public Limited Company	100.00	1	['customer']
TIMB	TIM S.A.	100.00	2
MTLS	Materialise NV	100.00	2
LTM	LATAM Airlines Group S.A.	100.00	1	['customer']
WELL	Welltower Inc.	100.00	2
SAN	Banco Santander, S.A.	100.00	2
TCMFF	TELECOM ARGENTINA SA	100.00	1	['customer', 'supplier']
SOR	Source Capital	100.00	1	['customer']
TEO	Telecom Argentina S.A.	100.00	1	['customer', 'supplier']
BBVXF	BANCO BILBAO VIZCAYA ARGENTARIA, S.A.	100.00	1	['supplier']
BMA	Banco Macro S.A.	100.00	2
VIV	Telefônica Brasil S.A.	100.00	1	['customer', 'supplier']
BBAR	Banco BBVA Argentina S.A.	100.00	2
WRD	WeRide Inc.	100.00	2
LILA	Liberty Latin America Ltd.	100.00	1	['supplier']
TELFY	TELEFONICA S A	100.00	1	['customer', 'supplier']
SPPP	Sprott Physical Platinum & Palladium Tr	100.00	2
EDN	Empresa Distribuidora y Comercializadora Norte Sociedad Anónima	50.00	2
BBVA	Banco Bilbao Vizcaya Argentaria, S.A.	50.00	2
DBRG	DigitalBridge Group, Inc.	50.00	2

Telefónica, S.A. Supply Chain