The 551st Signal Battalion is an active duty unit of the United States Army, housed on Fort Gordon. The MACOM for the 551st is (TRADOC) and they fall directly under the 15th Signal Brigade.The 551st trains the following Signal Corps MOSs: 25B – Information Technology Specialist25M – Multimedia Illustrators25N – Nodal Network System Operator/Maintainer25R – Visual Information Equipment Operator/Maintainer25S – Satellite Communications Systems Operator/Maintainer25V – Army Combat Documentation/Production Specialist46S – Public Affairs Mass Communication Specialist