Spectrum Occupancy Dashboard — LinkZoneTools

⚠ Please Read Before Using This Tool

LinkZoneTools LLC · Real-Time Spectrum Occupancy Dashboard · Terms of Use

📡 FCC ULS Data Source

License data is retrieved in real time from the FCC Universal Licensing System (ULS) public API. This data is publicly available and provided by the FCC. LinkZoneTools LLC does not own, control, or guarantee the accuracy, completeness, or timeliness of FCC ULS data. FCC database updates typically lag real-world licensing activity by 24–72 hours.

⚠ Critical Limitation — License Address ≠ Antenna Location

FCC license registrations show the licensee's address, which is typically their business office or headquarters — NOT the actual antenna location. A license registered in Dallas may have antennas hundreds of miles away. Markers on the map show the registration address only. Do not use this tool to assess actual interference risk at a specific antenna location without verifying the physical antenna locations through the FCC ULS license record directly.

📊 Data Completeness

The FCC ULS API may not return all licenses in a geographic area. Results are limited by API query parameters and may be filtered to a maximum number of results. E-Band (80 GHz) lightly-licensed links use a different license type (NN) and may appear less frequently. Always verify frequency coordination requirements with a licensed frequency coordinator before filing.

⚖ No Warranty — Not a Frequency Coordination Tool

THIS TOOL IS FOR INFORMATIONAL PURPOSES ONLY AND IS NOT A SUBSTITUTE FOR PROFESSIONAL FREQUENCY COORDINATION. LINKZONETOOLS LLC MAKES NO WARRANTY REGARDING DATA ACCURACY OR COMPLETENESS. DO NOT USE THIS TOOL AS THE SOLE BASIS FOR FREQUENCY COORDINATION DECISIONS. THE USER ASSUMES ALL RESPONSIBILITY FOR FINAL FREQUENCY COORDINATION AND FILING.

LinkZoneTools LLC · Sarasota, FL · linkzonetools.com · 📅 Last reviewed: June 2026
Real-Time Spectrum Occupancy Dashboard
⚠ FCC ULS data only — License markers show registration addresses, NOT actual antenna locations. Data may be 24-72 hours behind. Not a substitute for professional frequency coordination. Verify all links via FCC ULS directly before filing. 📅 Last reviewed: June 2026
Spectrum Occupancy
Search FCC ULS licensed microwave links near a location across 6, 11, 18, 23, and 80 GHz bands. Helps identify potentially active frequencies before planning a new link.
Search Location
Address or Place Name
Latitude
Longitude
Search Radius
km
Frequency Bands to Search
Select one or more bands. Each band is queried separately from FCC ULS.
Querying FCC ULS…
Results
Total licenses found
0
Search area
—
Save & Load Searches
💾 Saved Searches
⚠ Storage limitations: Projects are saved in this browser only on this device. Clearing browser data or cookies will permanently delete all saved projects. Saved data does not sync across devices or browsers. Cross-device sync is available with a Pro account. Re-run the FCC search to get the latest license data — saved searches store parameters only, not results.
⚠ Important limitations:
• Markers = license registration address, NOT antenna location
• FCC ULS data may be 24-72 hours behind actual filings
• Results limited to 100 records per band per query
• E-Band (80 GHz) lightly licensed links may not appear in all searches
• Always file frequency coordination through a licensed coordinator
• Click any marker for license details and FCC ULS link

⚠ License data accuracy disclaimer: FCC ULS records are self-reported by licensees and may contain errors including incorrect addresses, outdated contact information, expired licenses that have not been removed, or frequencies that are no longer in active use. LinkZoneTools LLC makes no warranty as to the accuracy, completeness, or currency of FCC ULS data as retrieved through this tool. Always verify license information directly at FCC ULS ↗ before making frequency coordination decisions.

📅 Last reviewed: June 2026
📍 Click map to set search location