The UNESCO Tehran Cluster Office (UTCO) covers four countries in the region, namely the Islamic Republic of Afghanistan, the Islamic Republic of Iran, the Islamic Republic Pakistan and Turkmenistan.
Programmes for Afghanistan and Pakistan are managed through UNESCO Offices in Kabul and Islamabad, while programmes for Iran and Turkmenistan are managed directly by the Tehran Cluster Office. UTCO works in close co-operation with the UNESCO National Commissions and key governmental partners of the four cluster countries, as well as UN Agencies, ECO, ISESCO, and other IGOs and NGOs. At the regional level, UTCO also co-operates with UNESCO's regional offices in Bangkok and Jakarta.