You can request the ICAO identifier change if you own the airport.
The FAA will send you a long list of IDs given your region, and you
can select one from the list. Thus University Airport at Davis,
California (home of a University of California campus) changed from
the confusing 0O5 (zero oscar five) to the much more useful KEDU.

Followups redirected from the inappropriate r.a.piloting to r.a.misc.
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Behind every successful man is a woman, behind her is his wife.
Groucho Marx