The regiment has its origins in the field signal (later telegraphy) company raised in 1871 and subordinated to Pontoon Battalion in 1875.

The company was redesignated as the Field Telegraph Corps and with designation Ing 3 (3rd Engineer Regiment) in 1902 when it became independent.

Blazon: "On blue cloth in the centre the lesser coat of arms of Sweden, three open yellow crowns placed two and one.

In the lower part of the rays, placed upon a cluster of yellow bolts, the provincial coat-of-arms of Uppland; gules an orb, banded and ensigned with a cross-crosslet, or.

Blazon: "On red cloth the provincial badge of Uppland; a yellow orb, banded and ensigned with a cross-crosslet.

On a yellow border at the upper side of the colour, battle honours (Varberg 1565, Narva 1581, Lützen 1632, Warszawa 1656, Frederiksodde 1657, March Across the Belts 1658, Rügen 1678, Düna 1701, Kliszow 1702, Holovczyn 1708, Helsingborg 1710, Svensksund 1790) in red.