Comcast Corp. v. FCC is a 2010 United States Court of Appeals for the District of Columbia case holding that the Federal Communications Commission (FCC) does not have ancillary jurisdiction over Comcast’s Internet service under the language of the Communications Act of 1934. In so holding, the Court vacated a 2008 order issued by the FCC that asserted jurisdiction over Comcast’s network management polices and censured Comcast from interfering with its subscribers' use of peer-to-peer software.