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 2022

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):  ☐

Mexico City - 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 2021.

T h e  c o n s o l i d a t e d  f i g  u r e s  e x c l u d e  T r a c F o n e  a s  i t  h a s  b e e n   d e e m e d  t o  b e  a  d i s c o n t i n u e d  o p e r a t i  o n .

4.8M wireless net adds and 72k new broadband clients

We added 4.8 million wireless subscribers in the fourth quarter, including 2.2 million postpaid subscribers, of which 1.1 million came from Brazil, 357 thousand from Colombia and 202 thousand from Austria. Our postpaid base increased 10.1% year-on-year.

In the prepaid segment, Mexico was the leader with 1.2 million net additions, followed by Colombia and Argentina with 349 thousand and 294 thousand, respectively.

On the fixed-line platform we had net disconnections of 139 thousand RGUs as disconnections of PayTV and voice accesses, 211 thousand, surpassed broadband additions of 72 thousand.

Service revenue +4.4% YoY at constant exchange rates

Fourth quarter revenue totaled 227.3 billion pesos, a 7.7% year-on-year increase in nominal peso terms, with service revenue increasing 5.4%. At constant exchange rates service revenue increased 4.4% year-on-year.

Mobile service revenue and fixed service revenue +6.9% and +0.5% YoY at constant exchange rates

At constant exchange rates, mobile and fixed-line service revenue were up 6.9% and 0.5%, respectively on an annual basis, with prepaid wireless revenue growth accelerating to 8.7% and that of corporate networks to 6.8%.

Adjusted EBITDA +7.7%YoY at constant exchange rates

EBITDA came in at 89.8 billion pesos, 16.6% more than a year before in nominal peso terms. Correcting for the sale of towers by Telmex in the quarter and an extraordinary positive impact a year before associated with the release of certain collection reserves, adjusted EBITDA totaled 82.9 billion pesos, up 8.9% relative to year-earlier quarter. At constant exchange rates, adjusted EBITDA was up 7.7% year-on-year.

Net profit of MxP 136Bn, including MxP 113Bn from discontinued operations

Our operating profit jumped 36.7% to 47.8 billion pesos. Adjusted for the aforementioned extraordinary items, our adjusted operating profit was up 20.1% in nominal peso terms to 40.9 billion pesos.

The net profit for the quarter totaled 135.6 billion pesos, it includes the operation of TracFone until its sale and the sale itself that totaled 112.7 billion pesos. Net profit for the full year was 196.0 billion pesos and 70.7 billion pesos when considering only continued operations, 136.8% more than a year before.

Shareholder distributions of MxP 65Bn and CapEx of 170Bn in the year

Our cash flow enabled us to cover capital expenditures of 170 billion pesos, shareholder distributions of 65 billion pesos and to reduce our net debt by 128 billion pesos in flow terms throughout the year.

Net debt to EBITDA at 1.23x

At the end of December our net debt—excluding leases—stood at 400.7 billion pesos, equivalent to 1.23 times EBITDAaL.

We will host our conference call to discuss 4Q21 financial and operating results on February 9th at 9:00 am Mexico City time. To access the call please log on to www.americamovil.com/investors

⁽¹⁾ Net Income / Average Shares outstanding

⁽²⁾ 20 shares per ADR

⁽³⁾ EBITDA / Average Shares Outstanding

Note

On November 23rd we completed the sale of TracFone Wireless. The financial statements presented in this report account for TracFone as a discontinued operation and include the net profit generated by that subsidiary up to the date of the divestment and the net gain generated by its sale, under “net income from discontinued operations”.

The reported figures for Argentina corresponding to the fourth quarter of 2021 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

América Móvil increased its buyback fund by MxP 26Bn

On November 22nd we held an Extraordinary Shareholders’ meeting where we received approval to increase our buyback fund by an additional amount of MXP$26 billion pesos for the period April 2021-April 2022. We also appointed Claudia Jañez Sanchez and Gisselle Morán Jiménez as independent members of América Móvil’s Board of Directors.

América Móvil completed the sale of TracFone to Verizon

On November 23rd we completed the sale of TracFone Wireless to Verizon Communications. América Móvil received US$3,625.7 million in cash and 57,596,544 shares of Verizon stock which had a closing price on that date of 51.54 dollars per share. Subject to TracFone continuing to achieve certain operating metrics (earn-out), Verizon shall pay an additional US$650 million within two years from that date.

América Móvil prepays bonds

Also in November, we called bonds with maturities in June and July of 2022 in the amount of 750 million euros and 1.6 billion dollars, respectively. The bonds were paid down in December with part of the proceeds received from the sale of TracFone.

Access Lines

2.2M postpaid and 2.5M prepaid net adds

We ended December with 287 million wireless subscribers, after net additions of 4.8 million in the fourth quarter. The latter figure comprises 2.2 million postpaid and 2.5 million prepaid net gains. Our postpaid base was up 10.1%. Brazil led the way in terms of postpaid net adds with 1.1 million subscribers followed by Colombia with 357 thousand and Austria with 202 thousand, whereas Mexico contributed with nearly half of the new prepaid subscribers, with 349 thousand coming from Colombia and 294 thousand from Argentina.

72k new broadband clients

On the fixed-line segment we gained 72 thousand new broadband clients. However, in PayTV we registered disconnections of 50 thousand in the quarter and in fixed-line voice, the number of lines came down by 161 thousand.

We ended December with a total of 367 million access lines, which includes 287 million wireless subscribers and 80.5 million fixed-line RGUs.

América Móvil Consolidated Results

Throughout the fourth quarter, concerns about the rise in inflation rates across the board kept financial markets alert about the policy implications, with U.S. 10-year Treasury yields moving around in a relatively wide band—35 basis points—but ending the quarter very much where they had started, at 1.51%. Notwithstanding the volatility in interest rates, equity markets continued to advance, with the S&P 500 delivering a 10.7% increase in the quarter. In our region of operation the Mexican peso, the Colombian peso and the Chilean peso all experienced bouts of volatility in the second half of November, with the former recovering fully by the end of the year and the other ones depreciating further.

Fourth quarter revenue totaled 227.3 billion pesos, a 7.7% year-on-year increase, with service revenue expanding 5.4% to 180 billion pesos. The consolidated figures mentioned above—and those that will be referenced below—exclude TracFone as it has been deemed to be a discontinued operation; they also exclude Argentina, which is presented under inflationary accounting. At constant exchange rates service revenue growth came in at 4.4%, a similar rate to the one posted the prior quarter: 4.8%. In the quarter, the Mexican peso appreciated vs. most other currencies in our region of operation on an annual basis, and depreciated slightly, 1.1%, vs. the U.S. dollar.

The pace of growth of mobile service revenue stayed roughly constant in the quarter, at 6.9%, with postpaid revenue expanding 5.9%—practically at the same pace as in the previous quarter—and prepaid revenue growth accelerating to 8.7% from 8.1% in the precedent quarter. Several operations including Peru, Puerto Rico, Eastern Europe, Dominican Republic, Mexico and Brazil experienced brisk mobile service revenue growth—between 8% and 12.4%, with Austria posting a 7.0% increase.

On the fixed-line platform service revenue expanded 0.5%, with revenue growth from corporate networks accelerating to 6.8% and that from broadband services decelerating to 4.0%. Both continued the trends followed throughout the year. Fixed-line voice revenue growth continued to decline, although at a slower pace than seen previously, whereas PayTV revenue kept on declining roughly at the same rhythm as it had in prior quarters.

Our Eastern European operations and Peru observed the fastest revenue growth in fixed-line services, with 13.1% and 11.8%, respectively. They were followed by Colombia and the Dominican Republic, with 7.1% and 6.2%.

Most of our operations—and four of the top five by revenue—presented service revenue increases in both the mobile and the fixed-line platforms, helping us leverage fixed costs.

EBITDA came in at 89.8 billion pesos in the fourth quarter. This figure reflects one-off items including the impact of the sale of towers by Telmex in the quarter and the release of certain collection reserves a year before that also took place in Mexico. Our adjusted EBITDA, correcting for these factors, totaled 82.9 billion pesos, representing an 8.9% increase from the year-earlier quarter. At constant exchange rates, adjusted EBITDA was up 7.7% year-on-year, slightly more than the 7.2% increase observed in the third quarter. The adjusted EBITDA margin rose to 37.6% from 36.0% in the year-earlier quarter.

The Dominican Republic, Central America and our European operations exhibited the fastest pace of EBITDA growth, at 12.4%, 11.1% and 9.7%, respectively.

Our operating profit jumped 36.7% to 47.8 billion pesos. Adjusted for the aforementioned extraordinary items, our adjusted operating profit reached 40.9 billion pesos and was up 20.1% in Mexican peso terms and 15.6% at constant exchange rates. It helped generate—after accounting for 19.7 billion pesos in comprehensive financing costs—a net profit from continuing operations of 22.9 billion pesos.

The net profit obtained through both the operation of TracFone until its sale on November 23rd and the sale itself is booked under the line item of Net Income from Discontinued Operations. It totaled 112.7 billion pesos. Together with the net income of our continuing operations it resulted in a net profit of 135.6 billion pesos in the fourth quarter, which was equivalent to 2.1 peso cents per share and 2.0 dollar cents per ADR. For the full year 2021 our net income stood at 196.0 billion pesos, more than four times larger than the one observed the prior year.

In 2021 our operating cash flow allowed us to fund 170 billion pesos of capital expenditures, 65 billion pesos in shareholder distributions and to reduce our net debt by 128 billion pesos in flow terms. Excluding leases, our net debt ended the year at 400.7 billion pesos, a 137.2 billion pesos reduction from the level outstanding at the end of 2020. Net debt excluding leases was equivalent to 1.23x EBITDAaL at the close of 2021.

In our net debt calculation we are considering as cash equivalent—under securities available for sale—stock received from Verizon as part of the payment for TracFone. At the end of the year the value of the Verizon stock was 61.6 billion pesos; also booked under the same line item is the KPN stock we own, valued at 56.1 billion pesos.

⁽¹⁾Includes current portion of Long Term Debt.

*There is approximately two billion pesos directed to the provisioning to the early retirement plans in Austria that should be substracted from the Free Cash Flow in 2021 and should be added back to the funds from operations in 2020.

Mexico

Telcel added 1.2M wireless subscribers

Telcel finished the year with 80.5 million wireless subscribers, 3.5% more than a year before, after 1.2 million net additions in the quarter, nearly all of them prepaid subscribers. Our postpaid base remained practically unchanged from a year before but prepaid growth continued on its strong growth trend that began in the third quarter of 2020. The coverage and quality of our network and our focus on customer experinece allowed us to maintained a positive balance from mobile number portability. Telmex had just over ten million broadband accesses and 11.4 million land-lines at the close of the year.

Service revenue was up 6.4% YoY

Our revenue totaled 82.7 billion pesos in the fourth quarter, 11.0% more than a year before. This figure reflects solid service revenue growth of 6.4%, equipment revenue that declined 13.9% annually given the shortage of handsets during the Holiday season and extraordinary revenue in the amount of 6.9 billion pesos, mostly to do with the sale of tower by Telmex.

Wireless service +9.1% YoY/Fixed-line services +1.3% YoY

Wireless service revenue were 9.1% higher than a year before as prepaid revenue finished the quarter on a strong note, rising 12.5%, with postpaid revenue increasing 4.8% on the back of a 6.2% increase in ARPU. Fixed-line service revenue came in 1.3% above the year-earlier quarter supported by corporate networks revenue that rose 5.5% and broadband revenue that were up 3.0%. We have seen a good take-up of the content bundled in our broadband plans, which include popular OTTs and streaming options.

Adjusted EBITDA up 8.0% YoY

EBITDA came in at 36.8 billion pesos in the fourth quarter. Correcting for extraordinary items—the sale of towers in this quarter and the release of a collection provision a year earlier—EBITDA was up 8.0% year-on-year on solid revenue growth and strict cost discipline. The adjusted margin, 39.4% (44.5% reported), was up 2.3 percentage points from a year before.

⁽¹⁾ Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽²⁾ Does not include the sale of towers in 4Q21 and the release of a collection provision in 2020 in Telmex.

⁽¹⁾Fixed Line and Broadband.

Brazil

1.1M postpaid net adds

We continued to lead the growth of the postpaid market in the fourth quarter, adding 1.1 million clients, and also gained 196 thousand prepaid subscribers, taking our wireless subscriber base to 70.5 million, 11.7% higher than a year before. Throughout the quarter, we had a positive balance from mobile number portability as clients value the speed and quality of our network, as well as the pricing of our plans.

Claro is the market leader in the PayTV and broadband segments

Fixed-line RGUs reached 31.3 million by year-end including 12.3 million PayTV units and 9.8 million broadband accesses. Claro is the market leader in both segments. In the former, we have followed our strategy to continue to expand our content offer and our interface allows for easy access OTT and VOD. As regards broadband services, our network is capable of providing 1Gbps speeds in over 300 cities.

Mobile service revenue +8.0% YoY, prepaid revenue rising +9.4%

Fourth quarter revenue increased 0.9% year-on-year to 10.2 billion Reais with service revenue up 1.7%; its pace of growth has accelerated quarter after quarter since the beginning of the year. Mobile service revenue increased 8.0% with prepaid revenue rising 9.4% and that from postpaid expanding 7.6%. Fixed-line service revenue were down 3.4%, a smaller pace of decline than was observed throughout the year. The revenue decline in the PayTV segment and in fixed-line voice, 12.9% and 9.6%, respectively, was for the most part offset by 4.1% growth in broadband revenue and 9.6% in that steming from corporate networks.

EBITDA +3.6% YoY with EBITDA margin at 41.5%

EBITDA for the period, 4.2 billion Reais, was 3.6% higher than a year before, with the margin reaching 41.5% helped along by some non-recurring items that amounted to slightly more than 100 million Reais.

We were granted additional spectrum for full 5G capabilities

During the quarter an auction was held by which we were granted the use of additional spectrum. We acquired four national blocks of 80MHz and four national blocks of 20MHz in the 3.5GHz band; five regional blocks of 50MHz in the 2.3GHz frequency and ten national blocks of 200MHz in the 26GHz band. This spectrum is meant to be used for full 5G capabilities that will strengthen our competitive position and our strategy to remain the strongest integrated network in Brazil.

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

Colombia

We had 357k postpaid and 349k prepaid net adds

Our wireless subscriber base topped 35 million at the end of the year after net additions of 706 thousand subscribers in the fourth quarter. Postpaid net additions reached a new record, 357 thousand, while prepaid gains of 349 thousand, although lower than a year before, were 75% higher sequentially. On the fixed-line segment, RGUs were up 6.7% from a year before, to 8.9 million, having added 31 thousand PayTV units, 53 thousand land-lines and two thousand new broadband connections in the quarter.

In a competitive landscape, wireless service revenue +1.3% YoY

Fourth quarter revenue increased 7.9% from a year before to 3.9 trillion Colombian pesos, with service revenue rising 3.5% and equipment revenue jumping 23.9%. In the midst of changes in the competitive landscape that have brought about aggressive promotions in the mobile segment, we registered wireless service revenue growth of 1.3% with prepaid revenue increasing 1.8% and postpaid revenue up 1.0%. As can be inferred by the positive results from mobile number portability of the fourth quarter, our clients greatly value Claro’s superior coverage, customer care and competitive pricing.

Fixed-line service revenue +7.1% YoY

Fixed-line service revenue were 7.1% higher than in the year-earlier quarter. Corporate networks led the way with their revenue expanding 11.7% followed by PayTV services—whose revenue rose 5.7%—, by voice revenue, up 4.1% and by broadband revenue that increased 3.8%.

EBITDA +8.2% YoY and EBITDA margin at 43.7% of revenue

Notwithstanding important competitive pressures in both the mobile and fixed-line segments, we increased our EBITDA by 8.2% over the prior year—slightly more than the 7.8% rate that we had posted the prior quarter—to 1.7 trillion Colombian pesos. The margin for the period stood at 43.7% of revenue.

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾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).

⁽²⁾Fixed Line, Broadband and Television.

Peru

Wireless subscribers +10.6% and fixed-line RGUs +9.8%

After net additions of 298 thousand in the fourth quarter, we ended 2021 with 12.1 million wireless subscribers, 10.6% more than a year before. Fixed-line RGUs, 1.9 million, were up 9.8% on the back of broadband and IPTV access growth.

Wireless service revenue +12.4%/Fixed service revenue +11.8%

Our fourth quarter revenue totaled 1.7 billion Soles, 13.1% more than a year before, with service revenue expanding 12.2%; 12.4% in the mobile segment—with postpaid revenue jumping 17.0%—and 11.8% on the fixed-line platform. Broadband services and corporate networks drove revenue growth at 17.0% and 9.4%, respectively.

EBITDA was down 2.5% YoY due to intense commercial activity

EBITDA came in at 534 million Soles in the quarter. It was 2.5% below that of the prior year on account of more intense commercial activity. The EBITDA margin was equivalent to 32.0% of revenue.

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

Ecuador

Fixed line RGUs were up 27.5% YoY

At the end of the year our wireless subscriber base reached 8.7 million clients after net gains of 119 thousand in the last quarter. Fixed-line RGUs, 535 thousand accesses, exceeded by 27.5% those of a year before.

Service revenue declined 5.4% YoY

At 259 million dollars, fourth quarter revenue came in 1.1% below the year-earlier quarter. Equipment revenue were 50.6% higher than a year before while service revenue declined 5.4%—which compares to a decline of 8.1% for the full year. Postpaid service revenue slowed substantially their pace of decline: although down 7.2%, they improved from the -18.1% pace observed the prior quarter. The decline of prepaid service revenue, off -5.4%, is reflective of the economic downturn in the country. In the fixed-line segment, service revenue growth accelerated from 1.4% in the third quarter to 3.0% in the current period as a result of faster broadband revenue growth.

On cost reduction control, our EBITDA was up 7.2% YoY

In light of the difficult economic situation, we have consistently worked on cost reductions and control, which contributed to our EBITDA for the quarter rising 7.2% relative to the prior year. The EBITDA margin, 46.6%, was 3.6 percentage points higher than a year before.

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

Chile

103k postpaid net adds

Our wireless subscriber base ended 2021 just shy of seven million clients after incorporating net gains of 156 thousand subs in the fourth quarter, of which 103 thousand were postpaid subscribers. On the fixed-line platform we had 1.3 million RGUs which comprise 515 thousand broadband accesses and 502 thousand PayTV units.

Service revenue were down 2.6% YoY

Fourth quarter revenue rose 2.7% year-on-year to 208.7 billion Chilean pesos on the back of equipment revenue that rose 22.3% and service revenue that declined 2.6%. Wireless service revenue were down 2.9% partly as a result of the termination of a roaming agreement with one of our competitors, in absence of which they would have increased 1.2%. We continue to see migration from prepaid to postpaid as the latter has become much more attractive in recent quarters; postpaid revenue now represent 92% of our mobile service revenue. Fixed-line service revenue were down 2.3% following the disconnection of nearly 17 thousand RGUs and pricing pressures in what has become a very competitive market for broadband services.

EBITDA was down 14.8% YoY

EBITDA of 38 billion Chilean pesos in the quarter was 14.8% below than the one registered a year before. The EBITDA margin for the period stood at 18.2% of revenue.    

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

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.

358k wireless net adds, almost 80% more than a year before

We ended the year with 23.4 million wireless subscribers in Argentina, 8.9% more than a year before. We added 358 thousand subscribers in the quarter—almost 80% more than a year before—including 64 thousand postpaid subscribers. In addition, we had 1.7 million fixed-line RGUs, up 47.4% relative to 2020, after net additions of 64 thousand broadband connections and 32 thousand PayTV units. We have been focused on subscriber retention and on leveraging the strengths of our network, and have greatly benefited from mobile number portability.

Access growth and pricing strategy supported service revenue growth of 1.1% YoY

Solid subscriber and RGU growth, coupled with a good pricing strategy allowed for service revenue growth of 1.1% in real—after inflation—terms. Mobile service revenue were slightly higher than a year before with postpaid revenue rising 1.0% and prepaid revenue contracting 3.2% in real terms. Fixed-line service revenue—which already represent 14% of our total service revenue—increased 7.9% in real terms buoyed by PayTV revenue that were 2.5 times greater than those of obtained in the precedent year and by broadband services, whose revenue rose 13.6% in real terms.

EBITDA margin rose slightly to 38.9%

The quarter’s EBITDA came in at 17.4 billion Argentinean pesos; it was 1.0% lower in real terms from a year before, although the EBITDA margin rose slightly, 40 basis points, to 38.9%.

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

Central America

343k wireless net adds

In the fourth quarter our operations in Central America added 343 thousand subscribers, bringing our wireless subscriber base to 16.5 million at the end of 2021, 9.7% more than a year before. Most of the growth stems from prepaid net additions. On the fixed-line segment, we ended December with 4.4 million RGUs, a 3.9% year-on-year increase.

Service revenue expanded 3.4% YoY

Total revenue of 613 million dollars in the quarter were up 6.3% from a year before with service revenue that expanded 3.4%; in line with the figure for the full year. Wireless service revenue rose 3.9% with prepaid revenue up 8.7%. Fixed-line service revenue increased 2.4%, in line with the rate posted the prior quarter, as broadband revenue climbed 6.2%—and PayTV revenue accelerated to a 2.8% pace.

EBITDA was up 11.1% YoY

EBITDA jumped 11.1% from the year-earlier quarter to 267 million dollars as a result of a sharp decline in bad-debt provisions given a good collection record and, to a lesser extent, a reduction in service costs. The margin for the period was equivalent to 43.6% of revenue, 1.9 percentage points higher than a year before.    

⁽¹⁾Revenue reflect eliminations derived from both the overlap of fixed and mobile operations as well as international intercompany transactions. Total revenue include other income.

⁽¹⁾Fixed Line, Broadband and Television.

Caribbean

155k wireless net adds in Dominicana

We continued to experience solid growth in Dominicana gaining 155 thousand clients in the fourth quarter, with its subscriber base reaching 6.0 million clients, 9.9% more than at the end of 2020. Fixed-line RGUs increased 4.1% over the year and were just shy of two million; growth stems mostly from broadband accesses as we added 13 thousand accesses in the quarter.

Service revenue +8.0% and EBITDA +12.4% in Dominicana

Revenue in Dominicana, 14.3 billion Dominican pesos in the fourth quarter, were 8.1% higher than a year before, with service revenue rising 8.0%. Service revenue on the mobile platform expanded somewhat faster than those on the fixed-line, 9.3% vs. 6.2%, but it is of note that broadband service revenue growth was fastest in Dominicana than in any other of our operations. On the back of greater operating leverage, fourth quarter EBITDA rose 12.4% to 7.4 billion Dominican pesos with the margin climbing two percentage points to 52% of revenue from the year-earlier quarter.

We disconnected 12k wireless subscribers

In Puerto Rico, we ended December with just over one million wireless subscribers—after net disconnections of 12 thousand subscribers—and 616 thousand fixed-line RGUs. We had disconnections of 39 thousand fixed-line RGUs in the quarter including 23 thousand clients that were added in prior quarters as part of government aid programs.

Adjusted service revenue +13.8% YoY in Puerto Rico

In Puerto Rico, fourth quarter revenue were 0.8% higher than a year before with service revenue almost flat. The annual comparison is affected by revenue booked in the fourth quarter of 2020 that were linked to federal funds granted to the population which have been discontinued; adjusting for that effect service revenue would have grown 13.8%. In particular fixed-line service revenue would have grown 18.7% instead of the reported decline of 13.9%. EBITDA was down 3.2% year-on-year on account of the revenue decline and higher handset subsidies.