CH — Switzerland

Switzerland is a landlocked Alpine country known for its neutrality, banking sector, precision watchmaking, and direct democracy. Bern is the federal city (de facto capital). Switzerland has four national languages — German, French, Italian, and Romansh. The Swiss Franc (CHF) is one of the world's most stable and trusted currencies. For developers, the CH country code (from 'Confoederatio Helvetica') maps to de-CH, fr-CH, it-CH, and rm-CH locales. The .ch domain is widely used, and +41 is the dialing code. Switzerland's four-language requirement makes it one of the most complex countries for localization — a single application may need to support all four variants. Swiss number formatting differs by language region. Switzerland is not an EU member but participates in Schengen and various bilateral agreements, creating complex regulatory classification. The CHF's importance as a safe-haven currency means it appears frequently in financial applications. The AHV/AVS number (social security) has specific validation.