Edward Harold Saunders, Jr., seeks to appeal the district court’s orders denying relief on his motion to dismiss the indictment under Fed.R.Crim.P. 12(b)(2), and his motion for reconsideration. We dismiss in part and affirm in part.

In criminal cases, the defendant is accorded ten days after entry of the district court’s final judgment or order to note an appeal, see Fed. R.App. P. 4(b)(1)(A), unless the district court extends the appeal period under Fed. R.App. P. 4(b)(4). This appeal period is “mandatory and jurisdictional.” United States v. Raynor, 939 F.2d 191, 196 (4th Cir. 1991).

The district court’s order denying Rule 12(b)(2) relief was filed on July 9, 2001, and entered on the docket on July 17, 2001. Saunders filed his notice of appeal on February 1, 2002. Because Saunders failed to file a timely notice of appeal or obtain an extension of the appeal period, we lack jurisdiction to review the district court’s order denying his motion to dismiss the indictment. We therefore dismiss this portion of the appeal.

With regard to the denial of the motion for reconsideration, we have reviewed the *107 record, the district court’s order, and Saunders’ informal brief filed in this court. Because Saunders failed to challenge on appeal the district court’s disposition of the motion for reconsideration, he has waived appellate review of that order. 4th Cir. R. 34(b). We therefore affirm this portion of the appeal on the reasoning of the district court. United States v. Saunders, No. CR-94-17 (W.D.N.C. filed Jan. 25, 2002 & entered Jan. 30, 2002). We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

DISMISSED IN PART; AFFIRMED IN PART.