
    Haywood HINTON, Appellant v. Jonathan C. MINER.
    No. 04-1760.
    United States Court of Appeals, Third Circuit.
    Submitted Under Third Circuit LAE 34.1(a) July 1, 2005.
    Decided July 12, 2005.
    Haywood Hinton, Rego Park, NY, pro se.
    Paul A. Blaine, Office of United States Attorney, Camden, NJ, for Jonathan C. Miner.
    Before: SLOVITER, BARRY and FISHER, Circuit Judges.
   OPINION

PER CURIAM.

In 2003, Haywood Hinton, then serving a 60-month custodial term on a federal bank fraud conviction, filed a 28 U.S.C. § 2241 petition for a writ of habeas corpus challenging the Bureau of Prisons’ (BOP) computation of the time it credited toward service of his sentence. Hinton claimed that the BOP failed to credit his sentence for the entire period from November 28, 2001 through September 9, 2002. The District Court rejected the habeas petition on the merits, finding that Hinton was properly credited for the time in dispute. Hinton timely filed this appeal. Thereafter, Hinton finished serving his custodial term; he is currently serving a five-year term of supervised release.

The appellee argues that the appeal has been rendered moot by Hinton’s release from BOP custody. We agree. An Article III “case or controversy” must be present at all stages of the litigation for a federal comb to exercise judicial power. Lewis v. Cont’l Bank Corp., 494 U.S. 472, 477-78, 110 S.Ct. 1249, 108 L.Ed.2d 400 (1990). To maintain this appeal, Hinton must show some “collateral consequence” of the alleged failure to properly calculate his custodial term, and that his injury remains “likely to be redressed by a favorable judicial decision.” Spencer v. Kemna, 523 U.S. 1, 7, 118 S.Ct. 978, 140 L.Ed.2d 43 (1998). While Hinton might claim that the BOP’s alleged miscalculation of his sentence has affected his supervised release term, any additional credit toward the custodial portion of Hinton’s sentence would not shorten his period of supervised release. See United States v. Johnson, 529 U.S. 53, 58-60, 120 S.Ct. 1114, 146 L.Ed.2d 39 (2000) (holding that length of supervised release term may not be reduced by undisputed excess time spent in prison); DeFoy v. McCullough, 393 F.3d 439, 442 n. 3 (3d Cir.2005). Thus, given Hinton’s release from custody and his failure to make a showing of collateral consequences, we will dismiss his appeal as moot. 
      
      . Were we to reach the merits, we would affirm the denial of Hinton’s habeas petition for the reasons expressed in the District Court’s comprehensive Opinion. The record is clear that Hinton was properly credited — ■ partly toward two state sentences and the remainder toward his federal sentence — for the entire period from November 28, 2001 through September 9, 2002. In addition, insofar as Hinton seeks to raise a challenge to the District Court’s 2001 order denying his pre-trial motion to suppress evidence in his criminal case, that issue is not properly raised in this § 2441 proceeding.
     