Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 63M is...

63M is

  • Hermann Municipal Airport, Hermann, Missouri USA

63M is also in:

Acronym Definition Searched: AMU AECT TMDE SURF 11231 PGM CTFRL MNS DRL CONCERN VCY GEOX 52101 UO LFAM