A Tumwater man could end up in prison on charges of hacking into Comcast’s Web site and causing problems for customers trying to access their voice- and e-mails.

James Robert Black, Jr. was in federal court in Tacoma Tuesday afternoon and is one of three men charged with conspiracy.

Black told Wired.com that he got mad when a Comcast employee hung up on him. He then allegedly conspired with some hackers to get back at Comcast.

Federal prosecutors said he went by the name Defiant and was living in Tennessee at the time of the incident in May of 2008. Prosecutors said he worked remotely with two other hackers, one in Michigan and the other in Delaware and all three were part of a hacker group known as Kryogeniks.

“The three of them were involved in a conspiracy. All three of them located in different states in the United States decided they would trash, hack the Comcast Web site. They created alternative Web sites,” said Assistant U.S. Attorney Kathryn Warma.

The prank reportedly took down the cable giant's home page and Web mail service.

Federal prosecutors say Black -- and the other two men -- Michael Lewis and Christopher Nebel -- even called Comcast headquarters -- bragging that they had hacked their site.

“Well I think they contacted Comcast as part of this, as sort of an effort to say ‘neener, neener, neener,’ look what we've done,” Warma said.

Black recently moved to Tumwater from Tennessee and operates a internet marketing service.