U.S. District Judge Marcia S. Krieger on Wednesday told Nacchio to report to the minimum-security Federal Correctional Institution Schuylkill satellite camp in Minersville, Pa., by noon March 23.

A jury convicted Nacchio in 2007 of 19 counts of insider trading while acquitting him on 23 counts of the same charge.

Federal prosecutors alleged Nacchio sold $52 million worth of stock at a time when he knew Denver-based Qwest Communications International Inc. was at risk while other investors did not.

A three-judge panel of the 10th U.S. Circuit Court of Appeals overturned the conviction in a 2-1 ruling, saying the trial judge improperly barred a defense expert from testifying. The full appeals court last week disagreed and upheld Nacchio's conviction. The full court ruled 5-4 that the judge was within his discretion.

Nacchio's attorney, Maureen Mahoney, has indicated an appeal to the U.S. Supreme Court is likely. Nacchio also has challenged his sentence.

Mahoney was in a meeting Wednesday afternoon and did not immediately return messages seeking comment.