Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 403 is...

403 is

  • Forbidden

More Meanings For 403:

  • Forbidden
  • Alberta - Southern

403 is also in:

Acronym Definition Searched: L CAR MOO WCCX LLB JGN HKTMF SSI DR NCHRP IB M PBNE WUM A/E