The Flight Information Exchange Model (FIXM) is a global exchange standard capturing Flight and Flow information

FIXM provides a set of XML schemas that fully support the data exchange requirements for the Flight and Flow Information for a Collaborative Environment (FF-ICE) concept, as defined by the ICAO1 ATMRPP2

FIXM Applications

Contain metadata about the message exchange in addition to guidance for constructing messages, such as XML templates.

Sits as a layer above Core.


Contains basic flight data that are globally applicable and which are endorsed by the FIXM CCB.

FIXM Extensions

Support localized requirements from particular communities of interest.

Extends basic flight data and/or applications.

Getting Started

  1. Download the latest version of FIXM Core with the FF-ICE Application package here.
  2. Explore available regional Extensions to FIXM Core and Applications here.
  3. Browse the FIXM User Manual.
    Still have questions? Contact us.

Recent Code Updates

February 3, 2023

FIXM Core v4.3.0 was released.

November 30, 2021

FIXM US Extension v4.3.0 was released.

FIXM Work Area

The FIXM Work Area is an online collaboration space that is available to anyone interested in using FIXM.

While the FIXM Work Area is hosted by EUROCONTROL3, participation is open to the public.

First-time users should follow these simple instructions to register for a free account.