On 16^th November 1926 the 2^nd Radio telegraphists Regiment was constituted with three battalions of the Radio telegraphists Engineer Regiment become 1^st.

After a reorganization of the Engineer Corps, the Regiment was dissolved on 28^th October 1932 and its units divided between the different engineer regiments.

On 20^th August 1951 the 4^th Connections Battalion was constituted in Bolzano, in support of the 4^th Army Corps, inheriting the traditions of two units that operated in the Second World War: the 4^th Telegraphists Battalion and the 4^th Army Connections Battalion.

On 5^th February 1952 the unit was named 4^th Signals Battalion of Army Corps and in January 1954 it was organized in a Command, an Exercice Company and a Lines Constructions and Signals Centre Company. In 1967 the 3^rd Lines Constructions Company.

With the reorganization of the Army, on 1^st October 1975 the 4^th Battalion was named 4^th "Gardena" Signals Battalion inheriting the traditions of the 2^nd Radio telegraphists Regiment. On 22^nd January 1976 it received the traditional "Alpine Hat" and on 21^st March of the same year it received the War Flag.

On 28^th August 1992, on the framework of the reorganization of the Armed Force, it became 2^nd Signal Alpine Regiment, organized in a Command and Services Company and "Gardena" Battalion to which the 7^th Signals Company of the 4^th Alpine Army Corps was assigned (located in Bassano del Grappa and heir of the traditions of the 7^th "Carnia – Cadore" Signals Battalion) with the name of 2^nd Radio Links.

In February 2000 the Regiment passed at the dependencies of the C4 Projection Group included in the C4 – IEW Command (Command Control Communication Computer – Information Electronic Warfare) with the headquarters in Anzio.

In September 2001 the Regiment became Projection Signals Regiment with the establishment of a new battalion on two companies that took the name of the dissolved 42^nd "Pordoi" Signals Battalion of the North-Eastern Military Region.

Since January 2005 the Regiment has been organized in a regiment command, command and logistic support command, the "Gardena" battalion (on the 1^st, 2^nd and 3^rd Companies) and the "Pordoi" Battalion (on the 4^th, 5^th and 6^th Companies of new formation). The Regiment was included in the Maneuvre Support Signals Brigade depending on the Signals and Information Command, both located in Anzio.

On 1^st January 2009 it was officially named 2^nd Signals Alpine Regiment.