The meaning of the Acronym ATB is...

ATB is

• Above-ground Telecommunications Backbone
• All Trunks Busy

More Meanings For ATB:

• Above-ground Telecommunications Backbone
• Above-ground Telecommunications Backbone
• All Trunks Busy
• All The Best
• All Terrain Boarding
• Automated Torpedo Boat
• Arch Top And Back
• All Terrian Binocular
• Active Time Bar
• American The Beautiful
• Asked To Buy
• Amazon Tree Boa
• Active Timed Battle
• America The Beautiful
• Associative Topology Bus

ATB is also in:

• Chat
• Hobbies
• Networking
• Ship Types
• Telecom
• Unfiled