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: PUP NRT G EST RL FFAR PNN OCR DTÖ 49815 HEPA 42259 WSSRN PLS TMB