Phone Number Format Guide

About Phone Number Format Guide

Phone Number Format Guide is a reference directory for developers, designers, and anyone who needs the correct phone number layout for a specific country. It covers local, international, and mobile number formats for more than 200 countries, with a copyable example number for each one.

Users can search by country and compare domestic and international calling patterns, area code structure, and basic dialing rules. Each country page lists E.164 versions of the sample numbers, which helps when setting up signup forms, CRM records, or validation rules.

The site is free to use and positions itself as a quick lookup for test data and support documentation rather than a full validation service. The site also includes a number generator and number validator, which are linked from the navigation.