Irvine-based Data Integration Systems has been ordered to pay $11 million for making unauthorized charges on telephone bills and using deceptive marketing, the Federal Communications Commission said Thursday.

The company runs Central Telecom Long Distance, Consumer Telcom, and U.S. Telecom Long Distance. The FCC statement said DIS also switched phone carriers without authorization and violated truth-in-billing rules.

“This isn’t rocket science: no consumer should be charged for phone services that they canceled or never requested in the first place,” said FCC Enforcement Bureau Chief Travis LeBlanc in a statement. “Today’s fines make clear that we will aggressively prosecute those who ‘slam,’ ‘cram,’ or otherwise abuse consumers by unlawfully charging them for services they didn’t want or request.”

The FCC reviewed more than 260 consumer complaints about the companies.

The company, the FCC said, falsely claimed to be calling on behalf of a consumer’s real telephone carrier about a change for existing service. The company then switched their long distance carriers. When a customer switched back to their carrier, they were still charged a monthly fee.

A telephone number listed online for Data Integration Systems was not working when a reporter attempted to make contact Thursday.

Contact the writer: hmadans@ocregister.com or Twitter: @HannahMadans