The 22nd Signal Brigade had 3 active duty battalions and 1 separate company.

On 22 May 2007, the colors of the 22nd Signal Brigade were furled and the unit was inactivated.

The 3rd Signal Brigade has a history of inactivations and reactivations ever since formation of the unit in 1946.

It was redesignated for the 335th Signal Brigade on 24 December 1984.

It is also home to the 11th Signal Brigade.

It is a subordinate unit of the 35th Signal Brigade.

One battalion currently falls under command of 261st Signal Brigade:

It was redesignated for the 261st Signal Brigade on 1 September 1996.

Eventually, the 1st Signal Brigade was provided with six specially-equipped U-21 aircraft for use in relay operations.

The battalion was one of three that made up the 35th Signal Brigade.