Dev Tools · 3h ago
ISO 3166-1 Alpha-2 Country Codes: A Developer's Guide
ISO 3166-1 alpha-2 codes have 249 official entries, but reserved ranges like UK and XK cause bugs. Codes can be recycled or retired, so store the code and resolve names at render time. User-assigned ranges (AA, QM–QZ, XA–XZ, ZZ) are safe for custom use.
Meridian48 take
This guide is essential for any developer handling international data, but the real-world complexity of country codes is often underestimated until a production bug surfaces.
iso-3166country-codes