You can find information on federal judges (district and magistrate judges) on your district court's website.

See our Office Locations.

For information regarding child support, call your state’s Department of Health and Human Services or visit their web site.

Most likely the judge has ordered a presentence report that will be used at your sentencing hearing. Your case will be assigned to a U.S. Probation Officer for the preparation of the presentence report, which will include a personal interview with you.