Exhibit 99.1 WOW! REPORTS SECOND QUARTER 2025 RESULTS Greenfield markets now pass 91.1 thousand homes with a penetration rate at 16.0% ENGLEWOOD, Colo. (August 11, 2025) – WideOpenWest, Inc. ("WOW!" or the "Company") (NYSE: WOW), one of the nation's leading broadband providers, with an efficient, high-performing network that passes nearly 2.0 million residential, business and wholesale consumers, today announced financial and operating results for the second quarter ended June 30, 2025. Second Quarter 2025 ...