Phone Number Formatter
Format 11-digit phone numbers into 3-4-4 format with custom separator support.
Tool Guide
Introduction
An online phone number formatting tool that formats 11-digit phone numbers into a 3-4-4 format line by line, with a customizable separator.
This tool searches for all 11-digit phone numbers line by line and formats them into the 3-4-4 format.
The tool only processes domestic 11-digit mobile numbers that start with 1; it will not process numbers in other formats.
If you need to format numbers into other formats, contact customer support to have them added.