About 52.6 million American households had Netflix service in May, according to new analysis of Nielsen data obtained by CNBC. Amazon was a distant second with 25.2 million homes subscribing to Prime.
The data shows that Netflix is still holding on to its first-mover advantage in the increasingly competitive subscription video-on-demand service market. About half of American households with a television had a subscription to some form of streaming service, according to Nielsen.
That means about 89 percent of all streaming households use Netflix.