You seem shorter than I remember…
When you get an amateur radio license, you are issued a callsign. Mine was KF6KYI. This was a “2×3” call, which means it had two digits, followed by a single region digit, followed by three letters. These are issued sequentially, which means they aren’t particularly aesthetic or short. If you want to spend a grand $14, you can request a different (usually shorter, but sometimes with just some special meaning to you) callsign by the “vanity callsign program”. The shortest “1×2” calls are fairly rare, so they actually have a kind of lottery system to reassign ones that have expired.
Net result: I am KF6KYI no longer.
I am now:
K6HX