This directory contains an exact mirror of the current official **Dynamic Protection Area (DPA)** KML files published by the NTIA for the 3550–3650 MHz Citizens Broadband Radio Service (CBRS) band.
| File | Description | Version | NTIA Date |
|---|---|---|---|
| e-dpas.kml | Environmental Sensing Capability (ESC) / E-DPA protection areas | 2.0.5 | 2025-01-01 |
| gb-dpas.kml | Ground-Based Dynamic Protection Areas (GB-DPAs) for federal radar systems | 2.0.6 | 2024-04-03 |
| p-dpas.kml | Portal / Entry-Point Dynamic Protection Areas (P-DPAs) – coastal/entry zones | 2.0.7 | 2025-01-01 |
These files are an exact mirror of the public-domain KML files published by the National Telecommunications and Information Administration (NTIA):
NTIA is the authoritative source — check the page above for any newer versions or additional documentation.
Dynamic Protection Areas (DPAs) enable spectrum sharing in the CBRS band by dynamically restricting commercial operations in specific zones only when federal incumbent systems (primarily DoD radar) are active. This replaces larger static exclusion zones and maximizes available spectrum for CBRS users.
Additional reading:
These files are mirrored for convenience only.
No warranty — data may become outdated.
For any production, regulatory, or compliance purpose,
always download directly from the official NTIA source:
NTIA 3550–3650 MHz page.
Maintained by Key Bridge Wireless • January 2026