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

63S is

  • Colville Municipal Airport, Colville, Washington USA

63S is also in:

Acronym Definition Searched: LIGAT SSTV DC 90220 47515 36460 REA LGD WVLC CMRI WFO IJAL DISHA SAF BFM