WELCOME TO THE 3LTD

The Three-Letter and Telephony designators system allows airlines to request designators themselves directly and have those requests automatically forwarded to the 3LTD Focal Points assigned in each State.

An airline can request a New Designator, a Modification to an existing designator, a name change, or a Confirmation letter.

This website is to assist in the assignment, modification, and confirmation of Three-Letter and Telephony designators. Please select the option that applies to you to determine what steps you need to take.