An insulating glazing unit has at least two glass panes and a circumferential spacer profile between them near their edges, for use in a window, a door, or a façade glazing, and which has in each case a frame, in particular a metallic frame, surrounding the edges of the insulating glazing, wherein at least one RFID transponder is attached to the insulating glazing unit as an identification element, wherein the at least one transponder is arranged on an inner surface of one of the glass panes in the spaced region between the spacer profile and the edge of the glass pane.