| Abbreviation | Definition |
|---|---|
| BNC | Bayonet Neill–Concelman |
| BNT | Broadband Networking Technology |
| BOC | Bell Operating Company |
| BOD | Bandwidth On Demand |
| BORSCHT | Battery feed, Overvoltage protection, Ringing, Signaling, Coding, Hybrid, and Testing |
| BOT | Baseline Of Text |
| BPoP | Building Point of Presence |
| BPS | Baud Per Second |
| BPSK | Binary Phase-Shift Keying |
| BR | Basic Rate |
| BRA | Basic Rate Access |
| BRAN | Broadband Radio Access Network |
| BREW | Binary Runtime Environment for Wireless |
| BRI | Basic Rate Interface |
| BRITE | Basic Rate Interface Transmission Extension |
| BRTL | Blu-Ray Triple Layer |
| BS | Basic Service |
| BS | Broadcast Satellite |
| BS | Burst Selector |
| BSA | Basic Service Area |