ration of the suit,” the principal question is whether there was an excuse for the delay in service).
Nor was it ipso facto unreasonable to wait three months before attempting to obtain service, as plaintiff did here. See Nelson, 701 P.2d at 137 (Colorado law does not require service of process within a set time following the filing of a complaint). Similarly, the fifteen months that had elapsed without service of process from the date the complaint was filed to the date of the dismissal order, while a lengthy period, was not necessarily unreasonable. See, e.g., Isaacks v. Jeffers, 144 F.2d 26, 27-28 (10th Cir.1944) (two-year period between filing and service not lack of good faith prosecution); In re REA Holding Corp., 8 B.R. 75, 79 (Bankr. S.D.N.Y.1980) (two and a half-year delay allowed); Preston v. Mendlinger, 83 F.R.D. 198, 199-200 (S.D.N.Y.1979) (two-year delay in service permissible); Huffmaster, 186 F.Supp. at 122 (two-year delay excusable); cf. Martinez v. Garcia, 59 F.Supp.2d 1097, 1100 (D.Colo.1999) (when evidence showed that plaintiff knew of defendant’s whereabouts, five-year delay held unreasonable) (applying Colorado law).
B. Reason for the Delay
In its order, the trial court concluded that plaintiff had simply chosen “to wait until Mr. Manci is out of the service” to proceed and that plaintiff had “determined Mr. Manci is in the service and accepted that fact as justification for not attempting service.” However, the record does not support a determination that plaintiff had failed to act reasonably and in good faith.
Specifically, the evidence in the record is that plaintiff had received conflicting information as to Manci’s whereabouts, reflecting both that he was and was not serving in the military outside of Colorado. She had searched several databases, including Colorado Motor Vehicle records; had attempted service at Manci’s last known address; had left multiple, unreturned telephone messages for Manci’s parents; and had more than five separate communications with the Marine locator office in Quantico, Virginia, and Manci’s base headquarters, Camp Lejeune, North Carolina, over a fourteen-month period, before and after the trial court issued its initial notice. In her numerous contacts with the United States Marine Corps, plaintiff had been informed that:
• Manci was stationed overseas;
• the location would not be revealed;
• service cannot be accomplished overseas;
• service will have to wait until Manci returns to the United States; and
• a return date would not be provided.
According to the record, plaintiff indicated to the court that she would continue to periodically contact the Marine locator office, and offered to provide a progress report to the court every ninety days.
Also we note, as relevant here, that even if plaintiff had managed to locate Manci on a Marine base within the United States but outside of Colorado, he may have been able to refuse service. See 32 C.F.R. § 720.20(a)(2) (2008) (“In those cases where the process is to be served by authority of a jurisdiction other than that where the command is located, the person named is not required to accept process.”).
Based on this record, we conclude that plaintiff demonstrated a reasonable excuse for her delay in obtaining service on Manci.
C. Prejudice to Manci
The record also indicates that any prejudice to Manci from the delay, such as fading memories or losing track ■ of witnesses, is minimal. The claims against Manci (those against the remaining codefendants were set for trial but are now stayed indefinitely pending one of the codefendant’s return from his own overseas military service) were based on a simple two-car collision in which Manci is alleged to have rear-ended the vehicle in which plaintiff was a passenger.
Furthermore, even if there were measurable prejudice caused by the delay of service of process on Manci, the record indicates that plaintiff actually could have chosen to wait the entire length of Manci’s military service — long after the three-year statute of limitations period — before even filing the complaint. According to plaintiff, the Marine