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Comcast Corporation (formerly registered as Comcast Holdings) is an American telecommunications conglomerate heaquarted in Philadelphia, Pennsylvania. It is the second-largest broadcasting and cable television company in the world by revenue and the largest pay-TV company, the largest cable TV company and largest home internet service provider in the United States, and the nation's tird-largest home telephone service provider. Comcast services U.S. residential and commercial customers in 40 states and in the District of Columbia. As the owner of the international media company NBCUniversal since 2011, Comcast is a producer of feature films and television programs intended for theatrical exhibition and over-the-air and cable television broadcast, respectively.

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