What does 664 mean in US Phone Area Codes?

This page is about the meanings of the acronym/abbreviation/shorthand 664 in the Regional field in general and in the US Phone Area Codes terminology in particular.

Montserrat - Caribbean area

Regional » US Phone Area Codes


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"664." Abbreviations.com. STANDS4 LLC, 2017. Web. 23 Sep. 2017. <http://www.abbreviations.com/term/309029>.