Federal Inmate Lookup
The Federal Bureau of Prisons (BOP) operates all U.S. federal correctional facilities. Use the official BOP Inmate Locator to find individuals in federal custody since 1982.
BOP Inmate Locator
Search by BOP register number or by first/last name. The locator returns the facility, release date, and basic status information for federal inmates.
Federal Mailing Guidance
Mail to federal inmates must include the inmate's full committed name, BOP register number, and the correct facility address. Each federal facility has specific rules about content, paper, photos, and packages.
Mail rules vary by facility and security level. Verify with BOP Communications policies →
Use the Mailing Label Generator →Federal Disclaimer
NmateFinder is not affiliated with the Federal Bureau of Prisons or any government agency. The BOP Inmate Locator is the only authoritative source for federal inmate status. Information may change frequently — always verify directly with the BOP.
Notice: NmateFinder does not host inmate records. We route users to official sources. Always verify information directly with the relevant government agency.