| Excerpt |
|---|
This data type is applied to numeric data following common patterns that express telephone numbers and known valid phone numbers in the United States. |
- Parentheses are optional around area code values:
(###) ###-####
...
Local U.S. format not supported:
Code Block ###-####
International format:
Code Block +##-##-###-#####
Internal international format not supported:
Code Block ##-##-##-###-#####
Data Validation
In addition to validation against common phone patterns, values are checked against permitted U.S. phone numbers. For example, an area code value of 123 is invalid, as this area code value does not exist in the U.S. phone system.
