Charles Anthony Cotton, Jr., seeks to appeal the district court’s order denying his motion to reduce his sentence pursuant to 18 U.S.C. § 3582(c) (2000). In criminal cases, a defendant must file his notice of appeal within ten days of “the entry of either the judgment or order being appealed.” Fed. R.App. P. 4(b)(1)(A); see United States v. Ono, 72 F.3d 101, 102-03 (9th Cir. 1995) (applying ten-day appeal period of Rule 4(b) to § 3582(c) motions). With or without a motion, the district court may grant an extension of time to file of up to thirty days upon a showing of excusable neglect or good cause. Fed. R.App. P. 4(b)(4); United States v. Reyes, 759 F.2d 351, 353 (4th Cir. 1985).

The district court entered its judgment on February 5, 2004; the ten-day appeal period expired on February 20, 2004. Cotton filed his notice of appeal pro se on March 8, 2004, which was after the ten-day period expired but within the thirty-day excusable neglect period. * Because the notice of appeal was filed within the excusable neglect period, we remand to the district court for the court to determine whether Cotton has shown excusable neglect or good cause warranting an extension of the ten-day appeal period. The record, as supplemented, will then be returned to this court for further consideration. 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.

REMANDED