Brock Purviance, former federal prisoner # 34230-013, filed a 28 U.S.C. § 2241 habeas corpus petition in the Western District of Texas challenging Bureau of Prison (BOP) regulations that categorically excluded him from eligibility for early release upon completion of a residential drug *378 treatment program. The district court dismissed the petition for failure to exhaust administrative remedies.

“This Court must examine the basis of its jurisdiction, on its own motion, if necessary.” Mosley v. Cozby, 813 F.2d 659, 660 (5th Cir. 1987). “Whether an appeal is moot is a jurisdictional matter, since it implicates the Article III requirement that there be a live case or controversy.” Bailey v. Southerland, 821 F.2d 277, 278 (5th Cir. 1987).

According to the BOP website, Purviance was released from prison on July 15, 2011, and his prison sentence can therefore no longer be shortened. Cf. United States v. Booker, 645 F.3d 328 (5th Cir. 2011) (relying on the prison release date shown on the BOP website to find that the appellant’s claim was moot). Although a district court may alter a petitioner’s period of supervised release in an appropriate case pursuant to 18 U.S.C. § 3583(e)(1) or (2), United States v. Johnson, 529 U.S. 53, 60, 120 S.Ct. 1114, 146 L.Ed.2d 39 (2000), the district court in this case lacks jurisdiction to grant such relief with respect to Purviance’s 25-year term of supervised release. The sentencing court has jurisdiction over that issue, see § 3583(e), and Purviance was sentenced in another district. A sentencing court can transfer such jurisdiction to another district court, see 18 U.S.C. § 3605, but no transfer occurred in this case. Therefore, there is no possibility that the district court may alter Purviance’s period supervised release under § 3583(e), see Johnson v. Pettiford, 442 F.3d 917, 918 (5th Cir. 2006), and we dismiss this appeal as moot. We likewise deny all pending motions as moot.

APPEAL DISMISSED; MOTIONS DENIED.