What does 660 mean in US Phone Area Codes?
This page is about the meanings of the acronym/abbreviation/shorthand 660 in the Regional field in general and in the US Phone Area Codes terminology in particular.
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What does 660 mean?
- Missouri, Show Me State, MO(noun)
- a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union