Meio Input Mask

HTML

<script src="https://raw.github.com/fabiomcosta/jquery-meiomask/08b92c411a60ace9131de697179fda433178b8d9/jquery.meio.mask.min.js"></script>
<input type="text" id="phone" alt="phone-us" value="212555" />

<input type="text" id="phone2" alt="phone" value="5551212" />
<input type="text" id="phone3" alt="phone-us" value="800555" />

JavaScript

$("input#phone").setMask();
$("input#phone2").setMask({mask:'phone'});
$("input#phone3").setMask();