Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 18B is...

18B is

  • Manana Island Coast Guard Lifesaving Station / Weather Observation Station, Monhegan, Maine USA

18B is also in:

Acronym Definition Searched: AIN STARS HERO RN BJ ICC 95894 32502 XCD CIMA NR DIIU SAL 98502 IPO