Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 999-9999 is...

999-9999 is

  • The Nine Line - Help line for runaways

More Meanings For 999-9999:

  • The Nine Line - Help line for runaways
  • The Nine Line - Help line for runaways

999-9999 is also in:

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