Bureau of Prisons - https://www.bop.gov/
If you or a family member have been sentenced for a federal crime in the U.S. District Court, your federal sentence will likely be served in one of the national BOP facilities. You can use this website to search for where an inmate is currently being housed, and to learn about different facilities, as well as the jobs and available programming while in the BOP.
North Carolina Department of Public Safety - https://www.ncdps.gov/
If you or a family member have been sentenced for a state crime in a county criminal court, your state sentence will likely be served in a state prison or county jail. You can use this website to search for state prison inmates, probationers, and parolees.
If your family member has not been sentenced yet, please see the Jails section for more information on where he or she is being housed.