Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 1S1 is...

1S1 is

  • Eckhart International Airport, Porthill, Idaho USA

1S1 is also in:

Acronym Definition Searched: 1NHVLB LSSCM P CCC RDA IDGIS SMM IDS AMS TP 08988 SPFP SEB 94041 ทพญ.