Key Bridge provides the most trusted CBRS Spectrum Access System (SAS) in the industry.
The Key Bridge SAS delivers secure, real-time access to the full Citizens Broadband Radio Service (CBRS) band. We automatically manage spectrum sharing and coexistence across fixed wireless, mobile, and private networks — maximizing available bandwidth and transmit power for every user.
Battle-tested and carrier-grade, our platform powers the nation’s most demanding network applications. From nationwide 5G deployments and carrier offload to private LTE/5G networks in education, logistics, energy, and beyond — hundreds of enterprises and service providers rely on Key Bridge every day.
With Key Bridge, you get proven stability, maximum spectrum efficiency, and the peace of mind that comes with a platform engineered for quality above all else.
The Citizens Broadband Radio Service (CBRS) is a 150 MHz-wide shared spectrum band (3550–3700 MHz) in the 3.5 GHz range that enables both licensed and unlicensed use under a dynamic three-tiered access model:
| Tier | Users | Protection Level |
|---|---|---|
| 1 | Incumbent Access | Highest - Protected from all |
| 2 | Priority Access License (PAL) | Medium - Protected from Tier 3 |
| 3 | General Authorized Access (GAA) | Opportunistic - Anyone can use with a valid radio |
The certified SAS from Key Bridge automatically coordinates everything in real time. With the Key Bridge web portal you get convenient, real-time control over PAL/GAA channels, CBSD registration, heartbeat monitoring, and full control of your data.
Key Bridge gives you full control over your spectrum, your devices, and your network operations.