A Utah judge has blocked TV streaming company Aereo from operating in several Western states until the U.S. Supreme Court takes up a related case in April.

Broadcasters have argued Aereo is stealing TV signals without paying. Aereo says its tiny antennas should be treated the same as antennas that people use to pull TV signals for free.

District Judge Dale Kimball, who ruled Wednesday, argued that Aereo's service is indistinguishable from that of a . His ruling applies to a district that covers Oklahoma, Kansas, New Mexico, Colorado, Wyoming, Utah and parts of Montana and Idaho.

Fox, the broadcaster owned by Twenty-First Century Fox Inc., calls the ruling a significant win, while Aereo CEO Chet Kanojia says he is disappointed.

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