Simplest Number Input Mask Plugin with jQuery - Simple Mask | Free jQuery Plugins
GitHub - rajaramtt/jquery-input-mask-phone-number: jquery-input-mask-phone-number.js - A simple, easy jquery format phone number mask library
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Consider Using Localized Input Masks for 'Phone' and Other Restricted Inputs (64% Aren't Taking Advantage of Input Masking) – Articles – Baymard Institute
How to setup phone input field masks for your region/country – RegisterONE