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What does 999-9999 stand for? 

What does 999-9999 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: 999-9999.

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999-9999

The Nine Line - Help line for runaways

Community » Non-Profit Organizations -- and more...

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"999-9999." Abbreviations.com. STANDS4 LLC, 2020. Web. 27 Feb. 2020. <https://www.abbreviations.com/999-9999>.

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How do you say 999-9999 in ASL sign language fingerspelling?
9999999