| Abbreviation | Definition |
|---|---|
| BTD | Bit Transfer Distribution |
| BTS | Broadband Telephony Switch |
| BTTH | Broadband To The Home |
| BURN | Birmingham University Radio Network |
| BW | Bandwidth |
| BWA | Broadband Wireless Access |
| BWC | BlackBerry Web Client |
| BYL | Better your Life |
| BYND | Broadband and Youth Networking Dialogues |
| BYOO | Bring Your Own Organization |
| C | Communication |
| C | Connected |
| C2CWG | Center-to-Center Working Group |
| C2H | Client To Host |
| CA | Channel Access |
| CA | Client Active |
| CA | Continuous Access |
| CAE | Client Application Enabler |
| CAIDA | Cooperative Association for Internet Data Analysis |
| CAL | CAN Application Layer |