Tanzania [1964–today] Africa • Eastern Africa

The Imperial British East Africa Company (IBEAC) was the administrator of British East Africa, which was the forerunner of the East Africa Protectorate, later Kenya.

East Africa Protectorate (also known as British East Africa) was an area of East Africa occupying roughly the same terrain as present-day Kenya from the Indian Ocean inland to Uganda and the Great Rift Valley.

The British Protectorate of Uganda was a protectorate of the British Empire from 1894. In 1893 the Imperial British East Africa Company transferred its administration rights of territory consisting mainly of Buganda Kingdom to the British Government.

The Sultanate of Zanzibar (Arabic: سلطنة زنجبار‎), also known as the Zanzibar Sultanate was a country and protectorate of the United Kingdom that existed on the Zanzibar Archipelago off the coast of East Africa between 1856 and 1964. It also controlled parts of what is now the eastern coast of Tanzania, of which it became a constituent part in 1964 after the unification of Zanzibar and Tanganyika.

East Africa and Uganda Protectorates was the name used by the combined postal service of the protectorates of British East Africa and Uganda between 1 April 1903 and 22 July 1920

British Somaliland (Somali: Dhulka Biritishka ee Soomaaliya, Arabic: الصومال البريطاني Al-Sumal Al-Britaniy‎) was a British protectorate in present-day northwestern Somalia.

Overprinted German postage and fiscal stamps, later overprinted British stamps

Kenya, Uganda, Tanganyika (KUT) is the name on British postage stamps made for use in the British colonies of Kenya, Uganda, and Tanganyika. The stamps were circulated between 1935 and 1963 by the joint postal service of the three colonies, the East African Posts and Telecommunications Administration.