UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF A FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2021

Commission File Number: 1-16269

AMÉRICA MÓVIL, S.A.B. DE C.V.

(Exact Name of the Registrant as Specified in the Charter)

America Mobile

(Translation of Registrant’s Name into English)

Lago Zurich 245

Plaza Carso / Edificio Telcel, Piso 16

Colonia Ampliación Granada, Miguel Hidalgo

11529 Mexico City, Mexico

(Address of Principal Executive Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

América Móvil’s fourth quarter of

2020 financial and operating report

Mexico City, February 9^th, 2021 - América Móvil, S.A.B. de C.V. (“América Móvil”) [BMV: AMX] [NYSE: AMX, AMOV], announced today its financial and operating results for the fourth quarter of 2020.

We will host our conference call to discuss 4Q20 financial and operating results on February 10^th at 9:00 am Mexico City time. To access the call please log on to www.americamovil.com/investors

América Móvil’s Fundamentals

⁽¹⁾ Net Income I Average Shares Outstanding

⁽²⁾ 20 shares per ADR

⁽³⁾ EBlTDA I Average Shares Outstanding

América Móvil’s Subsidiaries as of December 2020

The reported figures for Argentina corresponding to the fourth quarter of 2020 are presented in accordance with a) IAS29 reflecting the effects of the adoption of inflationary accounting that became mandatory after the Argentinean economy was deemed to be hyperinflationary in the third quarter of 2018 and b) IAS21 translated to Mexican pesos using the end-of-period exchange rate.

All comparisons at constant exchange rates for America Movil’s consolidated figures will exclude Argentina to ensure consistency.

Relevant Events

In December we received a resolution issued by the Federal Telecommunications Institute (IFT) on its evaluation of the asymmetrical regulations imposed on March 2014 to Telcel and Telmex, as preponderant agents. In general terms, for fixed services, it resolved: (i) the use of a long-run average incremental costs model to determine the local loop indirect access services rates, and that IFT may determine competitive geographic zones where such rates will be determined by Telmex; (ii) for dedicated-link leasing services, the IFT may determine competitive geographic zones where rates will be determined pursuant to a price cap methodology and (iii) certain operative and informational modifications to the electronic management system. In the mobile segment, the main additions and modifications are related to: (i) detail of information required for rate economic replicability analysis and (ii) rules applicable to purchase of handsets in installments by Telcel’s end users. The resolution will be challenged in accordance with applicable law.

On December 14th we informed that the offer submitted by our Brazilian subsidiary, Claro, jointly with Telefónica Brasil and TIM for the acquisition of the mobile business owned by Oi Group was accepted. The offer is in the amount of R$16.5 billion, of which Claro will pay 22%. In consideration of such amount, Claro will receive 32% of Oi Group’s mobile business customer base and approximately 4.7 thousand mobile access sites. The closing of the transaction is subject to customary conditions including regulatory approvals from Anatel and Conselho Administrativo de Defesa Econômica, CADE.

On this date, our Board of Directors approved a plan to spin-off our towers from América Móvil in Latin America. This spin-off will maximize the value of the infrastructure by becoming an independent entity entirely focused on development, construction and co-location of towers for wireless services. We expect to complete the reorganization of assets in 2021.

Access Lines

In light of greater observed and expected COVID contagion rates some countries imposed new confinement measures in various cities in December. Nonetheless, trends for the quarter generally show good results in terms of mobile net additions overall.

After net additions of 6.8 million in the quarter—twice as many as in the precedent quarter—we finished the year with 287 million wireless subscribers. Net additions included 2.7 million postpaid subscribers and 4.0 million prepaids. Brazil led the way in terms of postpaid growth after adding almost two million subs, followed by Peru with 223 thousand and Colombia with 201 thousand; our postpaid base was up 10.1% year-on-year to 98 million subs. Mexico and Brazil added 1.2 million prepaid subs each and Colombia 784 thousand.

On the fixed-line platform we connected 208 thousand broadband accesses, almost half of them in Colombia, bringing the total to 29.8 million, 5.4% more than a year before. Pay TV units and fixed voice lines were down -3.8% and -4.0%, respectively. We ended December with 81 million fixed-line RGUs.

Wireless Subscribers as of December 2020

⁽¹⁾ Includes total subscribers of all companies in which América Móvil holds an economic interest; does not consider the date in which the companies started being consolidated.

Fixed-Line and Other Accesses (RGUs) as of December 2020         

⁽¹⁾ Fixed Line, Broadband and Television (Cable & DTH). Central America figures have been adjusted in accordance with the methodology used for all AMX operations.

América Móvil Consolidated Results

Going into the fourth quarter the economic recovery already underway appeared to be picking up speed throughout most of our region of operations, with confidence levels shooting up in November following the U.S. presidential election and, shortly thereafter, the announcements of the approval of vaccines meant to ward off the COVID-19 virus. In this context the Latin American currencies, which had depreciated sharply against the U.S. dollar as the pandemic began, strengthened notably, with the Mexican, Colombian and Chilean pesos rising approximately 10% vs. the dollar during the quarter. Other currencies did as well, including the euro and the Brazilian real, that appreciated 4.0% and 7.9%, respectively.

Fourth quarter revenues, 255 billion pesos were down 3.1% in nominal peso terms, with service revenues declining -0.3%. At constant exchange rates, service revenues actually increased 2.2%, faster than in the preceding quarter when they had risen 1.5%. The difference between the nominal peso increases and those at constant exchange rates have mostly to do with the Mexican peso having appreciated vs. most Latin American currencies, especially against the Brazilian real (22.9%)—which reduced the peso value of real-denominated revenues. This effect more than offset the impact on our peso revenues of the depreciation of the Mexican peso vis-à-vis the U.S. dollar and the euro, 6.2% and 13.0%, respectively.

The expansion of service revenues was driven by that of mobile service revenues, which accelerated to 4.1% from 3.5% the prior quarter. For their part, fixed-line service revenues declined slightly, -0.9%, in what was their best performance in nearly a year.

Mobile postpaid revenues continued to be our top line item increasing 6.3%, up from 4.7% the prior quarter, with Austria, Puerto Rico, Peru, Brazil and Mexico all showing sequential improvements. Prepaid revenues decelerated slightly, from 2.5% in the third quarter to 2.3% in the fourth one.

Our second most important revenue line, fixed-broadband services, continued to perform well, expanding 8.4% in the quarter, slightly less than the 9.1% pace observed the prior quarter, as revenues decelerated in Mexico, Ecuador and Chile. PayTV revenues continued to decline, although less rapidly— -7.5% compared to -9.2% the prior quarter—reflecting improvements in Colombia, Austria and Chile.

EBITDA came in at 82.9 billion pesos. It was up 1.3% in Mexican peso terms and 5.3% at constant exchange rates, with the EBITDA margin expanding 1.4 percentage points to 32.5%. Most countries registered stronger EBITDA growth; in the case of Mexico, EBITDA declined 5.2% largely reflecting the impact of a one-off effect booked in the fourth quarter of 2019 concerning the restructuring of certain lease agreements. Correcting for this effect, consolidated EBITDA would have increased 7.6% at constant exchange rates.

América Móvil’s Income Statement Millions of Mexican pesos

*Total revenues include Other Revenues.    

n.m. Not meaningful.    

Our operating profit was down 8.7% in peso terms to 40.4 billion pesos, as we increased charges for depreciation and amortization by 13.1%, having accelerated those associated with the Nextel operation we acquired in Brazil the year before.

In the fourth quarter we obtained a net financing income in the amount of 15.4 billion pesos stemming from foreign exchange gains of 36.2 billion pesos as the Mexican peso strengthened relative to the U.S. dollar and the euro. This helped bring about a net profit of 37.3 billion pesos, 79.6% higher than that of the year-earlier quarter. It was equivalent to 56 peso cents per share and 54 dollar cents per ADR.

Our operating cash flow allowed us to fund capital expenditures in the amount of 129.6 billion pesos, to cover 14.7 billion pesos of shareholders distributions and 18.2 billion pesos of pension and other labor-related liabilities, and to reduce our net debt by 64.9 billion pesos. Our net debt ended December at 647 billion pesos including capitalized lease obligations. It was equivalent to 1.93 times LTM EBITDA.

Balance Sheet - América Móvil Consolidated Millions of Mexican Pesos

*Includes current portion of Long Term Debt.

Financial Debt of América Móvil* Millions

*This table does not include the effect of forwards and derivatives used to hedge our foreign exchange exposure. It includes financial debt of Telekom Austria.

⁽¹⁾ Includes Peruvian soles and Chilean pesos.

Mexico

In the fourth quarter we gained 1.2 million subscribers, practically all of them prepaid, to finish the year with 77.8 million subscribers. Our postpaid base increased 1.3% year-on-year whereas our prepaid base was up 1.1%. On the fixed-line platform we added 32 thousand broadband accesses and disconnected 119 thousand land-lines.

Revenues totaled 74.6 billion pesos. They were down 8.7% from the year before on account of reductions in equipment revenues, -16.9%, and a one-off revenue item booked under other revenues in the fourth quarter of 2019. Service revenues were practically flat year-on-year, -0.4%, as wireless service revenues increased 0.8% and fixed-line service revenues dropped -2.5%. Both postpaid and prepaid mobile revenues expanded slightly faster than they had the preceding quarter. At 154 pesos, wireless ARPU has practically recovered to pre-Covid levels.

EBITDA totaled 28.6 billion pesos, down 5.2% from the year-earlier quarter reflecting for the most part the extraordinary item mentioned above. Correcting for this effect, EBITDA would have increased 0.4%.

In the midst of the sanitary crisis, Telcel has prioritized continuity of service without compromising quality or speed. We have enhanced digital channels for customer care, sales and billing while at the same time made important efforts to keep traditional means of customer service for those who need them. We maintained a positive balance from Mobile Number Portability through 2020.

With its solid infrastructure and cybersecurity capabilities, Telmex has developed a portfolio of integrated IT solutions for its corporate clients based on Cloud and managed networks with top certifications for our data centers and cybersecurity. We have enabled small and medium enterprises to improve their productivity and remain efficient, operating in a safe digital environment that meets the actual needs of remote work. Telmex has been an important catalyst for digital transformation of Mexico.

INCOME STATEMENT - Mexico Millions of MxP

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

⁽¹⁾ 2019 reflects reclassifications of “other revenues”.

Mexico Operating Data    

*Fixed Line and Broadband.    

Argentina

For comparison purposes all comments in this section related to annual variations of the presented period for Argentina refer to figures in constant peso terms, that is, adjusted for inflation in accordance to NIC 29. Information for Uruguay and Paraguay is not presented in the table.

Fourth quarter net additions came in at 200 thousand, including 36 thousand postpaid adds and 164 thousand prepaids to finish the year with over 21 million wireless subs. On the fixed-line segment RGUs expanded by 47.3% after additions of 82 thousand accesses. We were able to grow our broadband base as we expanded our fiber footprint, connecting 39 thousand new accesses in the quarter.

Fourth quarter revenues, 30.3 billion Argentinean pesos, were 9.8% lower in real terms—after inflation—than a year before with service revenues down 12.4% as wireless service revenues dropped 14.7% and fixed-line service revenues rose 6.1%. The latter increase came on the back of a 34.8% jump in broadband revenues and a 29.4% rise in PayTV revenues.

The quarter’s EBITDA, 11.7 billion Argentinean pesos, was down 15.0% in real terms as we could not offset the increases in inflation-linked costs such as salaries and the dollar-denominated expenses. The EBITDA margin for the period stood at 38.5%.

INCOME STATEMENT - Argentina Millions of Constant ARS of December 2020

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

Argentina Operating Data    

*Fixed Line, Broadband and Television.

(1) Hybrid subscribers are now included in our postpaid figures.

Brazil

Claro continued to lead market growth in the postpaid segment as net adds for the fourth quarter came in just shy of two million, taking our postpaid base to 35.6 million subs, a 29.6% increase year-on-year. In the prepaid segment, we registered net gains of 1.2 million after several quarters of subscriber disconnections. Altogether we ended the year with 63.1 million wireless subscribers, 15.9% more than a year before. Claro maintained a positive balance from Mobile Number Portability.

On the fixed-line platform we had net disconnections of 304 thousand units in the fourth quarter, of which 183 thousand were PayTV services and 119 thousand fixed-voice accesses. In an effort to improve customer loyalty and leveraging on the advantages of our convergent platforms, Claro has been focusing on sales of our Combo Multi, integrating our fixed and mobile services.

Fourth quarter revenues topped ten billion reais rising 1.9% annually, with service revenues growing 0.4%. Mobile service revenues continued to show solid performance, expanding 7.9%, with postpaid service revenues increasing 9.7%.Fixed-line service revenues declined 5.0% following a contraction of PayTV revenues, -12.8%, and voice revenues, -17.4%, that was not fully offset by the 9.7% increase in broadband service revenues resulting from upselling of speeds and bandwidth. Postpaid mobile services are our most important source of revenues, followed by fixed-broadband services.

Fourth quarter EBITDA, 4.1 billion reais, was up 8.0% year-on-year as our EBITDA margin hit a record high of 40.4%, 2.3 percentage points higher than a year before. We are focused on increasing operating efficiencies through synergies, cost savings and digitalization.

In the fourth quarter we launched “Claro Box TV”, a streaming device with remote voice control, self-installation and lower operational costs. It is a modern alternative product in terms of content and entertainment that can enhance our commercial offers. In addition, we are adding sports-oriented content to reinforce our offer and maintain our leadership.

We launched a set of products for corporate clients like Multicloud Solutions and some Home Office solutions among others. We aim to keep expanding in the ICT sector with data, internet, managed solutions and mobility. Embratel is the only telecom operator ranked among the 10 big players in this segment.    

INCOME STATEMENT - Brazil Proforma Millions of BrL

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

Brazil Operating Data    

*Fixed Line, Broadband and Television.

⁽¹⁾ We modified the methodology for calculating MOUs. We no longer include M2M subscribers.

Colombia

We obtained 201 thousand postpaid additions in the quarter, twice as many as in the same quarter of 2019 and a record high since 1Q11. In the prepaid segment we gained 784 thousand subs for a combined total of 985 thousand net subscriber additions. Fixed-line RGUs increased by 162 thousand units including 92 thousand broadband accesses—70 thousand of them under MINTIC programs—and 33 thousand PayTV units.

Fourth quarter revenues were up 6.6% year-on-year to 3.6 trillion Colombian pesos with service revenues rising 9.0% reflecting solid revenue growth on both the fixed-line and the mobile platforms. On the mobile one service revenues expanded 6.0% driven by postpaid revenues that increased 7.4%, with prepaid revenues growing 3.5% in a very competitive environment that includes a new entrant. On the fixed-line platform service revenue growth accelerated to 13.9%, up from 10.6% in the prior quarter, on the back of 20.9% broadband revenue growth and the sustained expansion of revenues coming from corporate networks and Pay TV services, up 15.4% and 12.9%, respectively.

Fourth quarter EBITDA rose 7.7% from the year-earlier quarter to 1.6 trillion Colombian pesos. The EBITDA margin, 43.6%, was 50 basis points higher than that of the previous year.

Since December 2019, after being granted additional spectrum in the 700MHz and the 2.5GHz frequencies, we have executed a roll-out of the latest technologies to improve our coverage and capacity to provide the best customer experience. The strength of our network allowed us to meet the demands of our clients for working remotely, homeschooling, getting information or medical attention in the course of the pandemic and we remain very supportive to keep Colombia connected. We have reinforced our digital channels, our customer service centers, call centers and agents, to ensure that we remain the top choice of our clients.

INCOME STATEMENT - Colombia Billions of COP    

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

Colombia Operating Data

*Due to differences in the policy for accounting active subscribers, the figures in this report are different from those published by the Ministry of Communications of Colombia (MinTIC). **Fixed Line, Broadband and Television.

⁽¹⁾ We modified the methodology for calculating MOUs. We no longer include M2M subscribers.

Chile

Fourth quarter revenues declined 3.8% year-on-year as service revenues came down 5.7%, slowing their rate of decline relative to the prior quarter, -7.2%. The improvement stems from the fixed-line segment where service revenues rose 0.6% after at least four quarters of declines. Broadband service revenues increased 9.5% whereas PayTV revenues were up 2.6% following several quarters of contractions. We launched in December our IPTV product that enhances the value of our broadband offering. On the mobile segment service revenues dropped 10.5% in the midst of aggressive competition and pricing pressure.

The contraction in revenues led to a 23.8% decrease in EBITDA to 44.7 billion Chilean pesos, with the EBITDA margin falling to 22.0%.

INCOME STATEMENT - Chile Millions of ChPL

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

⁽¹⁾ 2019 reflects restatements of fixed and mobile revenues.

Chile Operating Data

*Fixed Line, Broadband and Television.

Ecuador

We gained 281 thousand prepaid subscribers in the fourth quarter but also registered net disconnections of 174 thousand postpaid subscribers on account of their not having paid their bills after the grace period available during the emergency face of the pandemic. Most of them have become prepaid clients.

Revenues for the quarter declined 21.6% to 261 million dollars with service revenues falling 12.4%. Mobile service revenues were down 14.6%, mostly on account of postpaid revenues dropping 21.4%, but with prepaid revenues also falling 4.2% in a difficult economic and competitive environment. In the fixed-line segment service revenues increased 11.4% annually on the back of broadband revenues that rose 16.5% and corporate network revenues that, although small, increased 34.7%. We are seeing good adoption of our fixed-line products as we deploy fiber networks in new areas.

Following the revenue decline, EBITDA for the period dropped 23.1% to 112 million dollars. The EBITDA margin stood at 43.0%, practically unchanged from a year before.

*Revenues reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenues include other income.

*Fixed Line, Broadband and Television.    

Peru

We finished December with 10.9 million wireless subscribers after adding 396 thousand wireless subscribers in the quarter–the highest figure in nearly eight years–including 223 thousand postpaid subscribers.

Fourth quarter revenues reached 1.5 billion soles, 8.0% more than a year before, with service revenues increasing 8.3%, expanding on both the fixed and the mobile platforms.

Mobile service revenue growth accelerated to 4.9% year-on-year from -0.1% in the precedent quarter with prepaid revenues up 14.2%. We booked extraordinary revenues from government aid directed at achieving greater connectivity for education purposes. Fixed-line service revenues shot up 19.5% on the back of a 45.0% expansion in broadband revenues.

The solid expansion in service revenues, along with financial and commercial discipline and a reduction in bad debt provisions, resulted in EBITDA jumping 33.6% to 547 million soles. The EBITDA margin, 37.1%, was 7.1 percentage points higher than in the year-earlier quarter.