Investor Presentaiton

• Ohio cluster overview WOW! is a broadband provider of Internet, video and telephony services The Ohio cluster is comprised of WOW!'s market presence in Cleveland and Columbus For the twelve months ended March 31, 2021, WOW! Ohio generated revenue of US$244 million and adjusted EBITDA of US$103 million(1) CUSTOMER STATISTICS Network • Robust network with an active 100Gbps ring 100% homes passed are served by DOCSIS 3.1 platform and a 1 Gbps Internet service is offered cluster-wide Demographics • Ohio footprint covers markets with a higher median income vs. ABB and the U.S. average Younger demographics across Ohio markets should support increased Internet ARPU and customer growth (AS OF MARCH 31, 2021) PSUs 35,309 Homes Passed 688,275 Customers 198,191 Ohio ABB (excl. FL) U.S. Average Penetration 61,249 MEDIAN INCOME • HSI • Video $71.5k 28.5% $68.2k $67.8k 8.9% AVERAGE AGE 39.2 42.0 39.8 196,410 ● Phone 5.1% % OF POPULATION 50+ (2021) 34.7% 40.8% 35.9% 11 ■HSD Video Phone (1) LTM 3/31/21 Adjusted EBITDA of US$103 million, including adjustments to reflect the expected cost structure of Atlantic Broadband and run-rate synergies. (()) COGECO COMMUNICATIONS ATLANTIC broadband a Cogeco company

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