Wireless is AT&T's largest business,contributing about 40% of revenue. The firm is the third- largest U.S. wireless carrier, connecting 66 million postpaid and 17 million prepaid phone customers. WarnerMedia contributes a bit less than 20% of revenue with media assets that include HBO, the Turner cable networks, and the Warner Brothers studios. AT&T plans to spin Warner off and merge it with Discovery to create a new stand-alone media firm. The firm recently sold a 30% stake in its traditional television business, which serves 15 million customers and generates about 17% of sales. This business will be removed from AT&T's financials going forward. Fixed-line telecom services provided to businesses and consumers account for about 20% of revenue, serving about 15 million broadband customers.