| CTIA | Canberra Taxi Industry Association 
| Others |
| CTIA | Cellular Telecommunciations and Internet Association
| Others |
| CTIA | Cellular Telecommunications and Internet Association
| Others |
| CTIA | Cellular Telecommunications Industry Association
| Others |
| CTIA | Certified Transportation Instructors Association
| Others |
| CTIA | Color Television Interface Adaptor
| Others |
| CTIA | Computer Technology Industry Association
| Others |