Total revenues in the third quarter of 2019 were $507.5 million compared to $467.2 million in the year earlier period, an increase of 8.6%. Site leasing revenue in the quarter of $468.6 million was comprised of domestic site leasing revenue of $374.7 million and international site leasing revenue of $93.9 million. Domestic cash site leasing revenue was $371.4 million in the third quarter of 2019 compared to $350.4 million in the year earlier period, an increase of 6.0%. International cash site leasing revenue was $93.4 million in the third quarter of 2019 compared to $79.8 million in the year earlier period, an increase of 17.0%, or 17.9% excluding the impact of changes in foreign currency exchange rates.
Site leasing operating profit was $375.6 million, an increase of 9.5% over the year earlier period. Site leasing contributed 97.8% of the Company’s total operating profit in the third quarter of 2019. Domestic site leasing segment operating profit was $310.9 million, an increase of 8.5% over the year earlier period. International site leasing segment operating profit was $64.7 million, an increase of 14.9% over the year earlier period.
Tower Cash Flow for the third quarter of 2019 of $376.3 million was comprised of Domestic Tower Cash Flow of $311.6 million and International Tower Cash Flow of $64.7 million. Domestic Tower Cash Flow for the quarter increased 7.4% over the prior year period and International Tower Cash Flow increased 18.2% over the prior year period. Tower Cash Flow Margin was 81.0% for the third quarter of 2019, as compared to 80.2% for the year earlier period.
Net income for the third quarter of 2019 was $21.8 million, or $0.19 per share, and included a $21.0 million loss, net of taxes, on the currency related remeasurement of U.S. dollar denominated intercompany loans with foreign subsidiaries, while net income for the third quarter of 2018 was $16.1 million, or $0.14 per share, and included a $17.1 million loss, net of taxes, on the currency related remeasurement of U.S. dollar denominated intercompany loans with a Brazilian subsidiary.
Adjusted EBITDA for the quarter was $355.4 million, an 8.3% increase over the prior year period. Adjusted EBITDA Margin was 70.6% in the third quarter of 2019 compared to 71.0% in the third quarter of 2018.
Net Cash Interest Expense was $95.3 million in the third quarter of 2019 compared to $93.7 million in the third quarter of 2018, an increase of 1.7%.
AFFO for the quarter was $247.4 million, an 11.1% increase over the prior year period. AFFO per share for the third quarter of 2019 was $2.15, a 12.0% increase over the prior year period.
Investing Activities
During the third quarter of 2019, excluding the sites from the previously announced South Africa investment, SBA acquired 78 communication sites for total cash consideration of $27.8 million. SBA also built 98 towers during the third quarter of 2019. On August 30, 2019, the Company closed on its option to acquire all but 6% of a previously unconsolidated joint venture in South Africa. The cumulative amount invested by the Company in South Africa through the closing date is approximately $140.0 million. At closing, the South Africa joint venture had 889 towers in operation. As of September 30, 2019, including South Africa, SBA owned or operated 30,904 communication sites, 16,385 of which are located in the United States and its territories, and 14,519 of which are located internationally. In addition, the Company spent $15.9 million to purchase land and easements and to extend lease terms. Total cash capital expenditures for the third quarter of 2019 were $171.0 million, consisting of $8.8 million ofnon-discretionary cash capital expenditures (tower maintenance and general corporate) and $162.2 million of discretionary cash capital expenditures (new tower builds, tower augmentations, acquisitions, and purchasing land and easements).
Subsequent to the third quarter of 2019, the Company acquired 6 communication sites for an aggregate consideration of $6.7 million in cash. In addition, the Company has agreed to purchase and anticipates closing on 107 additional communication sites for an aggregate amount of $32.7 million. The Company anticipates that the majority of these acquisitions will be consummated by the end of the first quarter of 2020.
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