I don't know where you live, but any Fender Authorized dealer should be able to provide this sservice. In the US for example, Sam Ash music stores are authorized dealers.
So the first two letters refer to the year? I have a serial number for one but when I look up it says Fender CS Korea....????
True; for whatever reason Fender used the same prefixes on USA Custom Shop and MIK models - "CN" for sure, maybe also "CZ". On the MIKs though it's usually a decal on the back of the headstock and on the USA CS models it's usually engraved on the neck plate.
It is just that I found one that sounded quite good, but I think the guy is asking too much for a Fender Made in Korea, but I don't know much anyway.