Headquarters of the United Nations be sent by courier. The United Nations Postal Administration issues stamps, which must be used on stamped mail sent from the building. For award purposes, amateur radio operators consider the UN headquarters a separate "entity" under some award programs such as DXCC. For communications, UN organizations have their own internationally recognized ITU prefix, 4U. However, only contacts made with the UN Headquarters in New York, and the ITU count as separate entities. Other UN organizations such as the World Bank count for the state or country they are located in. The UN Staff Recreation Council operates amateur radio station 4U1UN,
United Nations Office for Project Services United Nations Office for Project Services The United Nations Office for Project Services (UNOPS) is an operational arm of the United Nations, dedicated to implementing projects for the United Nations System, international financial institutions, governments and other partners around the world. The organization's global headquarters is located on the UN City campus in Copenhagen, Denmark. UNOPS implements more than $1 billion worth of peace and security, humanitarian and development projects for its partners every year, operating in more than 80 countries. Its activities have ranged from managing the construction of schools in Afghanistan, to building shelters in Haiti, to procuring