The concept of call sign confusion and particularly the use of alphanumeric call signs are investigated by IFATCA.

IFATCA Policy is:

To reduce the possibility of call sign confusion:

  • Call signs that correspond to the last two designators of both ICAO and/or IATA airport designators of either the point of origin or destination of the flight, shall not be used.
  • In alphanumeric call signs, aircraft operator designators shall not be chosen that will create confusion with phonetic letters.
  • The use of tools that reduce possible call sign similarity shall be encouraged.
See: Resolution B7 – WP 92 – Kathmandu 2012, Resolution B40 – WP 62 – Virtual 2022

See also: WP 98 – Amman 2011

 

Last Update: 26th September 2022
3rd November 2019 897 Jean-Francois LepageCOMTOC , COM , TPM , Communications

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