Consider Using Localized Input Masks for 'Phone' and Other Restricted Inputs (64% Aren't Taking Advantage of Input Masking) – Articles – Baymard Institute
InputMask on CocoaPods.org
Input Masks - Lianjapedia
What is the Input Mask Wizard in Microsoft Access?
Control data entry formats with input masks - Microsoft Support
Access Table Number Field with Input Mask returns inconsistent values in queries - Stack Overflow