Phone Numbers
Baltimore Area: 410 - 581 - 4833
DC Area: 240 - 544 - 4833
Toll free: 877 - Call.GTB (877 - 225 - 5482)
Fax: 410 - 581 - 4839

Corporate
PO Box 568
Owings Mills, MD 21117-0568

Email
info@gtb.net

GTB Department contact

• Customer Care
  • Monday to Friday 8:30AM to 5:30PM
    410.581.4833 ext 2
  • After business hour repair
    410.581.4833 dial #521
  • Email: custservice@gtb.net
• Sales
  • Monday to Friday 8:30AM to 5:30PM
    410.581.4833 ext 114
    
  • Email: sales@gtb.net
• Collections
  • Monday to Friday 8:30AM to 5:30PM
    410.581.4833 ext 120
  • Email: collections@gtb.net