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The International Telecommunication Union (ITU) allocates call sign prefixes for radio and television stations of all types. [1] They also form the basis for, but may not exactly match, aircraft registration identifiers. These prefixes are agreed upon internationally, and are a form of country code. A call sign can be any number of letters and ...
ITU country symbols for non-member states, areas, [2] organizations [3] and special purposes [4] [5] Code Area A ABW Aruba: AIA Anguilla: ALS Alaska (State of) AMS Saint Paul and Amsterdam Islands: AOE / Western Sahara: ASC Ascension Island: ATA Antarctic: AZR Azores: B BER Bermuda: BIO Chagos Islands (Indian Ocean) BLM
The International Telecommunication Union (ITU) allocates call sign prefixes for radio and television stations of all types. Since 1927 these have been used to uniquely identify operators and locate amateur stations within a geographical region or country of the world.
Linked country codes are from ISO 3166-1. Series allocated to an international organization. Provisional allocation in accordance with No. S19.33: "Between radiocommunication conferences, the Secretary-General is authorized to deal with questions relating to changes in the allocation of series of call signs, on a provisional basis, and subject to confirmation by the following conference."
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
In telecommunications, call-sign allocation plan is the table of allocation of international call sign series contained in the current edition of the International Telecommunication Union (ITU) Radio Regulations.
While not directly related to call signs, the International Telecommunication Union (ITU) has further divided all countries assigned amateur radio prefixes into three regions; Canada is located in ITU Region 2. These regions are further divided into two overlapping zone systems: the ITU zone and the CQ zone. [4] [5]
Template: ITU prefixes by nation. 1 language. ... (uses prefixes allocated to Switzerland) HB (HB0, HB3Y, HBL) Lithuania: LY Luxembourg: LX Madagascar: 5R-5S, 6X