LANCASTER, Calif. (WKRC) - Teen pleads guilty to making nearly 400 swatting calls across the nation. The Department of Justice announced on Wednesday that an 18-year-old California resident has pleaded guilty to making hundreds of swatting calls.

A California teenager pleaded guilty to charges after allegedly phoning in hundreds of false bomb and mass shooting threats to schools, religious institutions and government officials across the nation,

Alan Filion, believed to have operated under the handle “Torswats,” admitted to making more than 375 fake threats against schools, places of worship, and government buildings around the United States.

Alan Filion, 18, became a “serial swatter” for profit and entertainment and made more than 375 swatting and threat calls, federal officials say.

A California teenager accused of being a "serial swatter" faces up to 20 years in prison for making interstate threats after pleading guilty in federal court on Wednesday. Alan Filion, 18, of Lancaster,

Alan W. Filion, 18, of California, called in false reports of bombings and mass shootings across the country, the authorities said.

Swatting is the practice of making a prank call to emergency services in an attempt to bring about the dispatch of a large number of armed police officers to a particular address.

A Lancaster teen accused of making hundreds of swatting calls and offer swatting-for-a-fee services pleaded guilty as part of a plea agreement.

An 18-year-old in California has pleaded guilty to making hundreds of swatting calls across the U.S., the Department of Justice says.