Site / Market / Frequency Query | SpectrumLookup

Unofficial license research tool – not affiliated with, endorsed by, or operated by the FCC. Built from FCC ULS public bulk data; may lag or differ from the official record. View: Modern | Classic

Site / Market / Frequency Query

Table Of ContentsIncludes: Amateur, Private Land Mobile, Commercial Land Mobile, 800/900 MHz SMR (Market), Broadcast Auxiliary, Paging, Coast & Ground, Commercial Operator, Microwave, GMRS, Ship, Aircraft (covered radio services · not included)

SpectrumLookup is a license research tool for land mobile radio, built on the FCC's public ULS data and updated daily. It goes beyond the FCC's search with pending applications on every search, renewal windows, Google Maps links and Classic or Modern PDF copies. Independent and not affiliated with the FCC.

Site / Market / Frequency Query

Finds licenses by transmitter state and county, a frequency or range, or a point, radius, or box. Co-channel Check lists other active stations on a frequency near the location you enter.

Search Criteria

Values

Service Selection:

State:

Frequency:

Begin: KHz MHz GHz
End: KHz MHz GHz

Begin alone searches that frequency; Begin and End search the range.

Location:

Point Point Radius Box Search

Co-channel Check:

Other active licenses on this frequency, or exactly one channel spacing above or below it, near the location entered above (point, decimal degrees, or street address). Straight-line miles.

Frequency (MHz): Radius (miles): Check: Co-channel Adjacent

Licensee Name:

Wildcard Search:

Auth Type:

Regular Special Temporary Both

Regular includes a blank authorization. Developmental and demonstration licenses are included only when Both is selected.

Grant Date:

From: To:

Entering only a "From" value will search on licenses granted prior to the date.

Expiration Date:

From: To:

If only a "From" date is entered the system will only retrieve records which expire after the date.
The date format is mm/dd/yyyy

Sort results by:

Callsign File Number Name Distance

Distance orders a Point Radius or street-address search by the nearest matching site. A Point or Box search cannot sort by distance. A Miles column is shown for every Point Radius result.

Limit Results to:

No Limitations (may include expired licenses and cancelled applications) Currently Licensed Facilities Pending Facilities Currently Licensed Facilities and Pending Facilities

Data Export:

Format output for raw data export. (CSV download)

Clear Parameters

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Not affiliated with or endorsed by the Federal Communications Commission. Data from FCC public ULS records. Data current as of Nov 12, 2026.

Need help with a radio system?

I'm Ty Calta, KF4DLA, Director of Service and Engineering at one of the largest Motorola dealers in the US. I'm a former Motorolan who traveled the world fixing broken radio systems, and I've worked in land mobile radio for more than 28 years. I specialize in MOTOTRBO, with many years on Capacity Max, Linked Capacity Plus/CPMS, Capacity Plus/CPSS, IP Site Connect/IPSC, and conventional MOTOTRBO. I enjoy troubleshooting radio systems and coverage problems. You can reach me at radio@spectrumlookup.com or on LinkedIn.

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