uiMask Directive Demo

Masked Input:

Model value: {{ x }}

Model value: undefined

NgModelController.$viewValue:

{{ demo.masked.$viewValue
              }}

NgModelController.$viewValue: undefined

Mask Definition:

A Any letter.
9 Any number.
* Any letter or number.

Masks:

        >input type="text" ng-model="phonenumber" ui-mask="(999) 999-9999"/<

Replace "(999) 999-9999" with your desired mask.