Manual Espinosa-Talamantes (defendant), a federal prisoner appearing pro se, appeals the district court’s denial of his motion to modify his term of imprisonment under 18 U.S.C. § 3582(c)(2). 1 We con- *1246 elude that defendant failed to file his notice of appeal within the ten-day period required by Fed. R.App. P. 4(b)(1)(A). However, because defendant filed his notice of appeal within the thirty-day extension period provided by Fed. R.App. P. 4(b)(4), we remand this case to the district court for the limited purpose of determining whether excusable neglect or good cause exists for the untimely filing of defendant’s notice of аppeal.
I.
In March 2001, defendant, a non-citizen who was previously deported after being cоnvicted of an aggravated felony, pled guilty to the offense of unlawfully reentering the United States in viоlation of 8 U.S.C. § 1326. In July 2001, the district court sentenced defendant to a prison term of thirty-seven months. In February 2002, defendant filed a motion under 18 U.S.C. § 3582(c)(2) to modify his term of imprisonment in light of the November 2001 amendment to USSG § 2L1.2. On February 13, 2002, the distriсt court entered an order denying the motion, concluding that the amendment to § 2L1.2 was neither retroactive nor clarifying and that defendant was therefore not entitled to a reduction in his sentencе. On March 11, 2002, defendant filed his notice of appeal regarding the February 13, 2002 order. 2
II.
“A timely notice of appeal is both mandatory and jurisdictional.”
United States v. Langham,
Defendant filed his notice of appeal more than ten days after the entry of the district court’s order. However, under Fed. R.App. P. 4(b)(4), a district court may extend the periоd to file a notice of appeal for an additional thirty days “[u]pon a finding of excusable neglect or good cause.” Although defendant did not file a motion under Rule 4(b)(4) to extend the period fоr filing his notice of appeal, we have held “that a defendant who filed his notice of apрeal within the Rule 4(b) thirty-day extension period may obtain relief by showing excusable neglect notwithstanding his fаilure to file a motion seeking such relief within that same time frame.”
United States v. McMillan,
At the time of our decision in McMillan, Fed. R.App. P. 4(b) provided for a thirty-day еxtension of the period to file a notice of appeal “[u]pon a showing of excusable neglect.” Fed. RApp. P. 4(b) (1995). In 1998, Rule 4(b) was amended, and, as set forth above, the rule now provides for а thirty-day extension of time “[u]pon a finding of excusable neglect or good cause.” Fed. R.App. P. 4(b)(4) (1998) (emphasis added). 3 Accordingly, because defеndant filed his notice of appeal within the thirty-day extension period provided by Rule 4(b)(4), we remand this сase to the district court for the limited purpose of determining whether defendant can establish excusable neglect or good cause for the untimely filing of his notice of appeal. After thе district court makes this determination, we request that it promptly forward a copy of its order to this court.
This appeal remains lodged on the docket of this court, and we REMAND to the district court for its dеtermination of whether defendant can establish excusable neglect or good cause for the untimely-filed notice of appeal.
Notes
. After examining the briefs and appellate record, this panel has determined unanimously that oral argument would not materially assist the determination of this appeal. See Fed. R.App. P. 34(a)(2); 10th Cir. R. 34.1(G). The case is therefore ordered submitted without oral argument.
. The notice of appeal indicates that defendant may have mailed it to the district court on March 5, 2002. However, the mailing date is immaterial for purposes of the issues in this appeal.
. Fed. R.App. P. 4 was also amended effective December 1, 2002, but the 2002 amendments did not make any changes to Rule 4(b)(4).
