Brian Dunning's FileMaker Custom Functions

FormatPhone ( PhoneIn ; AreaCode )

Masks or refomats North American phone numbers

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Chris Harvey   Chris Harvey
Bank of Bermuda

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  Sample input:
FormatPhone ( "#5551212; "441")
  Sample output:
(441) 555-1212

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Masks North American phone numbers, and adds an area code if none given. Does not reformat any numbers that don't match the North American pattern (7 or 10 digits). Used with an area code lookup table it is quite useful: FormatPhone ( PhoneNumber; Lookup ( AreaCodes::AreaCode;"")).



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Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

Under construction. Email me your wish list for improvements.