DA4
DA4 is an alphanumeric designation used in multiple domains to label items such as products, components, or administrative units. It does not refer to a single entity; its meaning is determined by the issuing organization and the field of use. In technology and consumer electronics, DA4 commonly appears as a model or variant code on devices or software packages, often indicating a generation or specific configuration. In transportation and infrastructure contexts, DA4 may function as a service, route, or stop designation within a timetable or mapping system. In government or legal documentation, DA4 can be used as an internal code for an office, district, or division associated with a district attorney or similar authority. In research or industry catalogs, DA4 can serve as a catalog or part-number prefix used to group related items.
Because the label is non-specific, readers should consult the primary source or metadata to identify the precise