The 3625 MHz band falls within the 3.5 GHz band, specifically within the 3550–3700 MHz range known as the Citizens Broadband Radio Service (CBRS) in the United States.
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📡 What is the 3625 MHz Band Used For?
The 3625 MHz frequency is part of the CBRS band, and it’s used for:
🏢 Private LTE and 5G Networks
- Enterprises, factories, schools, and campuses use the 3625 MHz band to build private cellular networks for secure, high-speed connectivity.
- Ideal for IoT, industrial automation, and smart building solutions.
🏙️ Wireless Internet Service Providers (WISPs)
- Many WISPs use this band to offer fixed wireless access (FWA), especially in rural or underserved areas.
📶 Mobile Network Operator Offloading
- Carriers can use CBRS spectrum like 3625 MHz to offload traffic from congested licensed spectrum.
🛡️ Government and Military Incumbents
- The U.S. Navy and other federal incumbents have priority access in certain regions, especially near coastal areas.
🔐 Spectrum Access Tiers (USA CBRS Framework)
The 3625 MHz band operates under a unique three-tiered licensing model managed by a Spectrum Access System (SAS):
| Tier | Description |
|---|---|
| Incumbent Access | Protected federal/military systems |
| Priority Access License (PAL) | Auctioned spectrum with priority use |
| General Authorized Access (GAA) | Unlicensed, opportunistic use |
🌍 International Use
Outside the U.S., the 3625 MHz frequency is often part of mid-band 5G allocations:
- 🇪🇺 Europe: Falls within the 3.4–3.8 GHz band for 5G NR
- 🇨🇦 Canada: Being studied for future 5G deployments
- 🌐 Globally: Recognized by the ITU for IMT (5G mobile broadband)