What year is a fender frontman 212R serial number CAX10K1955?

The serial number CAX10K1955 indicates that the Fender Frontman 212R was produced in 2005. The "CAX" prefix typically signifies a production year in the mid-2000s, and the "10K" suggests it was manufactured in that timeframe. Therefore, the amp is most likely from the year 2005.