Michael Lewis, federal prisoner # 35452-177, is serving a 240-month term of imprisonment for distributing cocaine *924 base. Lewis filed a motion for a reduction of his sentence under 18 U.S.C. § 3582(c)(2) based on the United States Sentencing Commission’s retroactive amendments to the base offense levels for crack cocaine offenses. He appeals the district court’s denial of that motion and of his motion for reconsideration of the decision.

Lewis did not file a notice of appeal within ten days after the district court denied his § 3582(c)(2) motion or within ten days after the district court denied his motion for reconsideration. See Fed. R.App. P. 4(b)(l)(A)(i) (2008); Fed. R.App. P. 26(a)(2) (2008); United States v. Alvarez, 210 F.3d 309, 310 (5th Cir. 2000) (noting that a § 3582(c)(2) motion is a step in a criminal case). Lewis did request an extension of time to file his notice of appeal. However, the district court denied the motion because it was filed beyond the 10-day period for filing a notice of appeal and beyond the 30-day period in which Lewis could have obtained such an extension. More than four months after the district court denied his motion for reconsideration, Lewis filed an untimely notice of appeal in this court.

Although Rule 4(b) is not jurisdictional, a defendant is not entitled to have his untimeliness disregarded. United States v. Leijano-Cruz, 473 F.3d 571, 574 (5th Cir. 2006). Accordingly, Lewis’s appeal is dismissed as frivolous. See 5th Cir. R. 42.2.

APPEAL DISMISSED.