(XML/CSV/XLS): The most official source for ISO 3166 codes, offering structured data for easy system integration.
Automatically format user-provided phone numbers during sign-up.
When using these codes manually, follow this standard dialing format: Exit Code + Country Code + Area Code + Local Number The Complete Guide to International Calling Codes - Remitly country phone codes download
(PDF): A ready-to-print PDF that is perfect for office desks, detailing over 200 country codes and their respective time differences. Common Country Codes Quick Reference
Storing phone codes locally or in your application database ensures that your systems can: (XML/CSV/XLS): The most official source for ISO 3166
If you only need the most frequently used codes, here is a snapshot: ISO (Alpha-2) United Kingdom India Australia Germany France China Japan How to Use International Codes
Match incoming calls to specific regions based on their prefixes. Top Sources for Country Phone Code Downloads Common Country Codes Quick Reference Storing phone codes
Several reputable organizations provide these lists in multiple formats.