ISO 3166-2:KH is an ISO standard which defines geocodes: it is the subset of ISO 3166-2 which applies to Cambodia. Each two-part code consists of the ISO 3166-1 code for Cambodia (KH) followed by a hyphen and either 1 or 2 digits.
KH-1
KH-2
KH-3
KH-4
KH-5
KH-6
KH-7
KH-8
KH-9
KH-10
KH-11
KH-12
KH-13
KH-14
KH-15
KH-16
KH-17
KH-18
KH-19
KH-20
KH-21
KH-22
KH-23
KH-24