Donald Stephen Rorex appeals his sentence following his guilty-plea conviction of false representation of a social security number. Rorex argues that he should be granted credit for the period of time that he was incarcerated under an April 26, 2004, federal detainer because he was in state custody on state charges at that time.

The Government has filed a motion for summary affirmance. The Government argues that this court lacks jurisdiction over this appeal because it does not fall within the ambit of 18 U.S.C. § 3742(a). However, the Government argues that the district court’s judgment should be summarily affirmed because the district court lacked authority to order that Rorex be given credit for time served.

It is well-established that district courts may not directly award credit against federal sentences for time spent in official detention. See United States v. Wilson, 503 U.S. 329, 333-37, 112 S.Ct. 1351, 117 L.Ed.2d 593 (1992); 18 U.S.C. § 3585(b). Thus, the district court did not err by refusing to award Rorex credit for time served in state confinement because the Attorney General, through the Bureau of *809 Prisons, determines what credit, if any, will be awarded to prisoners for time spent in custody prior to the commencement of their federal sentences. See Wilson, 503 U.S. at 331-32, 334, 112 S.Ct. 1351. The Government’s motion for summary affirmance is GRANTED, and the judgment of the district court is AFFIRMED.