Amateur radio call signs in Africa are codes used to identify all radio communications, broadcasts and transmissions. The International Telecommunication Union assigns Africa as ITU region #1. It has assigned call signs prefix blocks to countries including 77 DXCC entities in and off-shore of Africa. Western Sahara is not a DXCC entity but uses SØ as a prefix. Amateur radio or ham radio is practised by operators holding nationally allocated call signs in African countries or foreign administered territories and other nations or DXCC entities. Call sign allocation from the International Telegraph Union is administered by national political authorities and international mandates. Call sign blocks The following call sign blocks are used for all radio communication, broadcasting or transmission: CQ Zone 33/northwest Africa, European territories In Morocco CN8 is for residents, CNØ is for visitors. SØ for Western Sahara is an unofficial prefix, not issued by the ITU. CQ Zone 34/northeast Africa Sudan further subdivides its call signs thus (with possible changes due to the 2011 independence of South Sudan): ST2 Khartoum and its region, ST3 Wad Madani, central region, ST4 Al Ubayyid, Kurdufan region, ST5 Kassala, eastern region, ST6 Port Sudan, northeast region, ST7 Ad'Damir, northwest region, ST8 Al'Fashir, Darfour region, and ST9 Malakal, central-south region; Wau, Bahr-al-Ghazal region. CQ Zone 35/west coast (northern) central Africa Nigeria further subdivides its prefixes thus: 5N1 = OGUN, OYO, ONDO; 5N2 = KWARA, KOGI, NIGER, OSUN; 5N3 = EDO, DELTA, ANAMBRA; 5N4 = ENUGU, RIVERS, ABIA; 5N5 = CROSS RIVERS, AKWA-IBOM, IMO, BENUE; 5N6 = PLATEAU, TARABA, BAUCHI; 5N7 = ADAMAWA, YOBE, BORNO; 5N8 = KANO, JIGAWA; 5N9 = KADUNA, SOKOTO, KEBBI, KATSINA; and 5NØ = LAGOS STATE AND ABUJA, F.C.T. Senegal further subdivides its prefixes thus: 6W1 Dakar, 6W2 Ziguinchor, 6W3 Diourbei, 6W4 St. Louis 6W5 Tambacounda, 6W6 Kaolack, 6W7 Thies, 6W8 Louga, 6W9 Fatick and 6WØ Kolda. Liberia further subdivides its prefixes thus: EL1 Grand Bassa, River Cess, EL2 Montserrado, Bomi, Margibi, EL3 Sinoe, EL4 Maryland, Grand Kru, EL5 Lofa, EL6 Grand Gedeh, EL7 Bong, EL8 Nimba, EL9 Grand Cape Mount, and ELØ for Novices and Club Stations CQ Zone 36/west coast (southern) central Africa Democratic Republic of Congo (Zaire) further subdivides its call signs thus: 9Q1 – Kinshasa, 9Q2 – Bas Congo, 9Q3 – Bandundu, 9Q4 – Equateur, 9Q5 – Province orientale, 9Q6 – North Kivu, South Kivu, Maniema, 9Q7– Katanga, 9Q8 – Oriental Kasai, 9Q9 – Occidental Kasai,