ISO 3166-2:EC is the entry for Ecuador in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Ecuador, ISO 3166-2 codes are defined for 24 provinces.
Each code consists of two parts, separated by a hyphen. The first part is EC, the ISO 3166-1 alpha-2 code of Ecuador. The second part is one or two letters, currently used in vehicle registration plates, with a few exceptions.