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,
Headquarters of the United Nations Complainants about its current location include diplomats who find it difficult to obtain visas from the United States and local residents complaining of inconveniences whenever the surrounding roads are closed due to visiting dignitaries, as well as the high costs to the city. A US telephone survey in 2001 found that 67% of respondents favored moving the United Nations headquarters out of the country. Countries critical of the USA, such as Iran and Russia, are especially vocal in questioning the current location of the United Nations, arguing that the United States government could manipulate the work of the General Assembly