ATN International(ATNI) - 2025 Q4 - Annual Results

Exhibit 99.1 ATN Reports Fourth Quarter and Full Year 2025 Results; Provides 2026 Outlook Fourth Quarter and Full Year 2025 Highlights 2026 Outlook 1 EBITDA and Adjusted EBITDA are non-GAAP financial measures. Please see "Use of Non-GAAP Financial Measures" below for full definitions of EBITDA and Adjusted EBITDA and see Table 5 for reconciliations of Operating Income to EBITDA and Operating Income to Adjusted EBITDA, non- GAAP measures. 2 For the Company's Adjusted EBITDA guidance, the Company is not able ...