5G deployment in the USA, excluding satellite and fixed links from ChatGPT:
| Frequency Range (GHz) | 5G NR Band (Designator) | Usage / Notes | Major USA Service Providers | Deployment Status / Notes | Interference Management Measures |
|---|
| 3.3 – 3.7 | N77 | Mid-band 5G spectrum | Verizon, AT&T, T-Mobile | Used for 5G deployment, especially in urban and suburban areas | FCC rules enforce power limits, guard bands, filtering |
| 3.7 – 3.98 | N77 / N78 | Main 5G deployment band | Verizon, AT&T, T-Mobile | Widely deployed for 5G; core mid-band spectrum | Guard bands, filters, and power limits to minimize interference |
| 3.98 – 4.2 | N78 | Additional 5G deployment | Verizon, T-Mobile, AT&T | Expanding coverage, especially in dense areas | Regulatory oversight and technical standards |
| 24.25 – 27.5 GHz | N257 | mmWave 5G | Verizon, AT&T, T-Mobile | Limited deployment; high capacity, short range | Directional antennas reduce interference risk |
It looks like the 4.5–4.8 GHz range is not currently allocated or widely used by 5G service providers, so the likelihood of interference from 5G deployments in that spectrum is minimal or nonexistent at this time.
It's possible that satellite providers or other spectrum users might consider moving to the 4.5–4.8 GHz range in the future, especially if they seek to free up spectrum in currently congested bands or to access new bandwidth for expanding services.
Metro Areas with 5G Deployment in the 3.98–4.2 GHz Range:
| Metro Area | Deployment Notes | Service Providers | Deployment Status |
|---|
| New York City, NY | Some 5G coverage using higher mid-band frequencies | Verizon, T-Mobile | Limited urban deployment, mostly in dense urban cores |
| Los Angeles, CA | Select neighborhoods with 5G mmWave and mid-band | Verizon, AT&T | Ongoing deployment in high-density zones |
| Chicago, IL | 5G coverage expanding in central areas | Verizon, T-Mobile | Some deployment, primarily urban centers |
| Houston, TX | Pilot deployments in downtown | Verizon, T-Mobile | Limited deployment, expanding gradually |
| Miami, FL | 5G coverage in downtown and commercial districts | Verizon, AT&T | Early deployment stages |
Long story short, It looks like we will soon lose the 4–4.2 GHz band, but the 4.5–4.8 GHz range will remain clear.