#Telephone Input Field With Country Code & Flag | Custom Dropdown List

By: Coding Design

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Phone numbers are standardized in an international format known as E.164 which combines country codes and subscriber numbers in a format like this: +14155552671. This format is required by many APIs (including Twilio's) and means that you don't have to store country codes and phone numbers in two separate database columns.

However, you probably don't want your users to have to type in a + sign and country code when they provide their phone number.

This video will walk through how to build a phone number input field with country code and flag using HTML,CSS & vanilla JavaScript.