npm install react-phone-input-3 --save

Fork of react-phone-input-2 by bl00mber, adding extra features that have been requested:

• Additional <ReactPhoneInput /> attribute -> numberTrailing: string. This increases the maximum inputable length by {numberTrailing}.

import { ReactPhoneInput } from 'react-phone-input-3'
React.render(
  <ReactPhoneInput
    defaultCountry={'us'}
    onChange={handleOnChange}
    numberTrailing={10}
  />,
  document.getElementById('root')
);

For full usage of this, see react-phone-input-2.