It probably rolled over and started at zero again. Keep an eye on the tranny if this is the case. Do you have vehicle history (carfax), or documented service history? Not normal for a Honda to do that at any mileage. Unless someone's messed with the ecu and raised the rev limiter? High revs with low r/s ratio could do this... but only 24k?

This will help:

http://www.sportcompactcarweb.com/tech/swapguide1.pdf