In 2375, the K'mpec reported numerous crew casualties, which were displayed on a casualty report displayed aboard Deep Space 9. (DS9: "Image in the Sand", "The Siege of AR-558") The IKS K'mpec was named for K'mpec, the longest-serving chancellor of the Klingon Empire. The casualty report carried an identification number of 5645666 – this may have been a registry number, as the Federation starships listed include their registries.