Press Release

BEVERLY, Mass., May 29, 2026 (GLOBE NEWSWIRE) -- ATN International, Inc. (“ATN”, the “Company”, “we”, “us”, and “our”) (Nasdaq: ATNI), a leading provider of digital infrastructure and communications services, today announced that management will participate in the 16^th Annual East Coast IDEAS Investor Conference at The Westin New York at Times Square on June 11, 2026.

ATN will host one-on-one investor meetings throughout the day, with their presentation scheduled from 2:00 – 2:35 p.m. Eastern Time. Naji Khoury, Chief Executive Officer, Carlos Doliogli, Chief Financial Officer, and Michele Satrowsky, Senior Vice President, Head of IR & Treasury will attend the conference on behalf of the Company. ATN’s presentation will be webcast live and can be accessed through the conference host’s main website at https://www.threepartadvisors.com/east-coast and in the investor relations section of the Company's website: http://ir.atni.com. To schedule a one-on-one meeting, please contact the Three Part Advisors conference team at lwesley@IDEASconferences.com or (817) 769-2373.

About ATN

ATN International, Inc. (Nasdaq: ATNI), headquartered in Beverly, Massachusetts, is a leading provider of digital infrastructure and communications services for all. The Company operates in the United States and internationally, including the Caribbean region, with a focus on rural and remote markets with a growing demand for infrastructure investments. The Company’s operating subsidiaries today primarily provide: (i) advanced wireless and wireline connectivity to residential, business, and government customers, including a range of high-speed Internet and data services, fixed and mobile wireless solutions, and video and voice services; and (ii) carrier and enterprise communications services, such as terrestrial and submarine fiber optic transport, and communications tower facilities. For more information, please visit www.atni.com.

Source: ATN International, Inc.