A3SG-IER-05 Digital NOTAM Data Exchange as follows:1)Allow civil and military Airspace users, ATS, civil and military ANSP-s to subscribe to digitalNOTAM service. This is achieved by using AMQP standardized messaging protocol which is meant for asynchronous message exchange between systems. Users can specify the digitalNOTAM events they want and receive latest dynamic data on it. 2) Allow airport operators and AISP to exchange dynamic aerodrome data to achieve high efficiency and safe ground operations. 3) Allow military defence center and Military and Civil ANSPs to exchange airspace limitation and reservation data for flexible airspace usage. 4) Allow all users to request digital Pre-Flight Information Bulletins. This is achieved through the use of web-based API.