Add Phone Number as a data type or category
Adding a phone number as a data type or category so that Power BI can easily interact and manipulate phone numbers into different display formats
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And treat all the same so that if a user searches using one of those formats, no matter how the data is actually stored that it can find anyone of them.
Could also map the area code to geographical locations too
I agree with having custom data formats (as in Excel), but mapping area code to geographic locations is not feasible due to telephone number portability (which started about 10-15 years ago).