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  2. QRZ.com - Wikipedia

    en.wikipedia.org/wiki/QRZ.COM

    QRZ.com is an amateur radio website listing almost every callsign in the world. In 1992, QRZ founder Fred L. Lloyd accessed data from the FCC database to create a CD-ROM with all call signs issued in the United States. [1] A copy of the CD-ROM is carried on board the International Space Station and one was also aboard the Russian Mir space station.

  3. Call signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_the_United...

    Call sign information for U.S. stations are set out in chapter I of the FCC rules, Title 47 (Telecommunication) of the Code of Federal Regulations (C.F.R.): 47 CFR 2.302: General overview of call sign assignments, including a detailed summary of standards and practices for various license classes.

  4. List of three-letter broadcast call signs in the United States

    en.wikipedia.org/wiki/List_of_three-letter...

    In the United States, all radio and television broadcasting stations that are licensed by the Federal Communications Commission (FCC) are assigned official, distinct call signs. Organized broadcasting began in the U.S. in the early 1920s on the AM band — FM and television did not exist yet. Initially most broadcasting stations were assigned ...

  5. Amateur radio call signs - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_call_signs

    A call sign composed of a letter, two digits, and one-letter is always a 2×1 call sign, meaning it has a letter-digit prefix and a single-letter suffix. for all letter-digit-digit-letter callsigns, if the first character is other than B, F, G, I, K, M, N, R, or W then it is a 2×1 call sign

  6. Call signs in North America - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_North_America

    The call sign format for radio and television call signs follows a number of conventions. All call signs begin with a prefix assigned by the International Telecommunication Union (ITU). For example, the United States has been assigned the following prefixes: AAA–ALZ, K, N, W. For a complete list, see international call sign allocations.

  7. Broadcast call signs - Wikipedia

    en.wikipedia.org/wiki/Broadcast_call_signs

    In Mexico, AM radio stations use XE call signs (such as XEW-AM), while the majority of FM radio and television stations use XH.Broadcast callsigns are normally four or five letters in length, plus the -FM or -TV suffix where applicable, though several older stations have only three letters.

  8. Universal Licensing System - Wikipedia

    en.wikipedia.org/wiki/Universal_Licensing_System

    It mainly supports online licensing and public access to its database. The FCC is an independent agency of the U.S. government appointed with the duty of allocating permission to businesses and individuals, the domestic (non-federal) use of wireless technologies. Since mid-2018, the FCC stated that ULS:

  9. Call sign - Wikipedia

    en.wikipedia.org/wiki/Call_sign

    Russian nuclear icebreaker Arktika with call sign UKTY. Merchant and naval vessels are assigned call signs by their national licensing authorities. In the case of states such as Liberia or Panama, which are flags of convenience for ship registration, call signs for larger vessels consist of the national prefix plus three letters (for example, 3LXY, and sometimes followed by a number, e.g. 3LXY2).