| Subject | English | German |
| commun., transp., avia. | interrogator code | Abfragecode |
| commun., transp., avia. | interrogator code allocation | Abfragecodezuweisung |
| commun., transp., avia. | interrogator code allocation plan | Abfragecode-Zuweisungsplan |
| commun., transp., avia. | interrogator code allocation service | Abfragecode-Zuweisungsdienst |
| commun., transp., avia. | interrogator code allocation system | Abfragecode-Zuweisungssystem |
| commun., transp., avia. | interrogator code application | Abfragecodeantrag |
| commun., transp., avia. | interrogator code conflict | Abfragecodekonflikt |