Global Dial Code
Exit Country Code + 420 + Area Code + The Number
The Czech Republic country code is 420. The nationality of Czech Republic is Czechs.The capital of Czech Republic is PragueLargest Cities in Czech Republic by population: Prague, Brno, Ostrava, Plzen, Liberec, Olomouc, Ust nad Labem, Hradec Kralove, Ceske Budejovice, Pardubice. Local Telephone Prefix: No trunk codes in Czech Republic, just dial direct when calling domestic.