Andean Region—Ecuador and Peru
The number of prepaid wireless subscribers for 2021 increased by 7.3% over 2020, and the number of postpaid wireless subscribers increased by 15.7%, resulting in an increase in the total number of wireless subscribers in our Andean Region segment of 10.0%, or 1.9 million, to approximately 21.0 million as of December 31, 2021. The number of fixed voice RGUs for 2021 increased by 13.6% over 2020, the number of broadband RGUs increased by 15.6% and the number of Pay TV RGUs increased by 4.0%, resulting in an increase in total fixed RGUs in our Andean Region segment of 13.2%, or 286 thousand, to approximately 2.5 million as of December 31, 2021.
Segment operating revenues for 2021 decreased by 1.8% over 2020. Adjusted segment operating revenues for 2021 increased by 11.0% over 2020. This increase principally reflects an increase in revenues in Peru, partially offset by a decrease in Ecuador. The increase in revenues in Peru reflects an increase in revenues from prepaid and postpaid wireless, broadband, corporate networks, fixed voice and Pay TV services. The decrease in revenues in Ecuador reflects a decrease in revenues from postpaid mobile.
Segment operating income for 2021 decreased by 14.3% over 2020. Adjusted segment operating income for 2021 increased by 17.1% over 2020. This increase principally reflects an operating income increase of 55.9% in Peru partially offset by a decrease of 10.2% in Ecuador.
Segment operating margin was 14.1% in 2021, as compared to 16.1% in 2020. Adjusted segment operating margin was 19.6% in 2021, as compared to 18.4% in 2020. This increase in the segment operating margin for 2021 principally reflects a recovery in Peru, partially offset by a decrease in operating income in Ecuador.
Central America—Guatemala, El Salvador, Honduras, Nicaragua, Panama and Costa Rica
The number of prepaid wireless subscribers for 2021 increase by 10.7% over 2020, and the number of postpaid wireless subscribers increased by 4.4%, resulting in an increase in the total number of wireless subscribers in our Central America segment of 9.7%, or 1.5 million, to approximately 16.5 million as of December 31, 2021. The number of fixed voice RGUs for 2021 decreased by 2.1% over 2020, the number of broadband RGUs increased by 7.1%, and the number of Pay TV RGUs increased by 10.6%, resulting in an increase in total fixed RGUs in our Central America segment of 3.9%, or 165 thousand, to approximately 4.4 million as of December 31, 2021.
Segment operating revenues for 2021 increased by 0.8% over 2020. Adjusted segment operating revenues for 2021 increased by 6.5% over 2020.
Segment operating income for 2021 increased by 105.2% over 2020. Adjusted segment operating income for 2021 increased by 102.2% over 2020. This increase in segment operating income for 2021 principally reflects a decrease in depreciation expenses as a result of the exhaustion of the useful life of certain assets in Guatemala in 2021 and the recognition of asset impairment in Panama and Honduras in the prior year, which was not recognized in 2021.
Segment operating margin was 16.9% in 2021, as compared to 8.3% in 2020. Adjusted segment operating margin was 19.1% in 2021, as compared to 10.1% in 2020. This increase in segment operating margin for 2021 principally reflects an increase in income, particularly in El Salvador, Honduras, Guatemala, Nicaragua and Costa Rica.
Caribbean—The Dominican Republic and Puerto Rico
The number of prepaid wireless subscribers for 2021 increased by 12.1% over 2020, and the number of postpaid wireless subscribers increased by 3.3%, resulting in an increase in the total number of wireless subscribers in our Caribbean segment of 9.3%, or 600 thousand, to approximately 7.0 million as of December 31, 2021. The number of fixed voice RGUs for 2021 decreased by 1.2% over 2020, the number of broadband RGUs increased by 4.6% and the number of Pay TV RGUs increased by 5.3%, resulting in an increase in total fixed RGUs in our Caribbean segment of 1.9%, or 50 thousand, to approximately 2.6 million as of December 31, 2021.
Segment operating revenues for 2021 increased by 3.4% over 2020. Adjusted segment operating revenues for 2021 increased by 7.5% over 2020. This increase in segment operating revenues principally reflects increase in operating revenues in Puerto Rico and the Dominican Republic. We analyze segment results in U.S. dollars because it is the functional currency of our operations in Puerto Rico.
Segment operating income for 2021 increased by 29.2% over 2020. Adjusted segment operating income for 2021 increased by 32.4% over 2020. This increase principally reflects an increase of 34.3% in Puerto Rico and 22.4% in the the Dominican Republic.
Segment operating margin was 21.7% in 2021, as compared to 17.3% in 2020. Adjusted segment operating margin was 18.4% in 2021, as compared to 14.9% in 2020. This increase in segment operating margin for 2021 principally reflects an increase in service revenues in Puerto Rico in postpaid and Pay TV and in the Dominican Republic, driven by broadband and fixed data services, and the effects of the cost savings program, partially offset by the depreciation of the Dominican Peso.
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