This dataset provides the locations and associated information for amateur radio operators in the United States and territories as registered in the FCC's Universal Licensing System (ULS). It includes call signs, operator class, region codes, and historical data on previous call signs and operator classes, excluding personal and sensitive information.

Out of 1,612,849 total ULS entity records, 1,589,052 were succesfuly geocoded (98.5%). Of these, 5,486 were geocoded at either the zip code or city level (0.35%). The average Tiger geocoder rating was 16.35, indicating a fairly reasonable accuracy.

Credits Federal Communications Commission (FCC)

Summary The dataset includes the following fields:

• unique_system_identifier: An identifier for the record. This column is joinable to the other tables in the FCC ULS downloads you can get from https://www.fcc.gov/uls/transactions/daily-weekly#weekly-files
• call_sign: The assigned call sign of the radio operator.
• operator_class: The license class of the operator.
• region_codee: The FCC region code the operator is associated with.
• previous_call_sign: Previous call sign, if applicable.
• previous_operator_class: Previous license class, if applicable.
• license_status: The current status of the license. A denotes active, C denotes cancelled, E denotes expired, T denoted terminated.
• effective_date: The date the current license status took effect.
• rating: A geocoding accuracy rating from the PostgreSQL TIGER geocoder, where 0 is the highest accuracy and higher values indicate less accuracy. All geocoding results are included. If the rating is 5000 level, it was geocoded at the zip code level by the Nominatum service. Otherwise, it was geocoded at the address level by the PostGIS Tiger geocoder.
• city: The city of the operator's registered address.
• state: The state of the operator's registered address.
• zip_code: The postal zip code of the operator's registered address.
• is_po_box: A boolean value indicating whether the address was a post office box or not.

Usage Notes Users are advised to verify data accuracy and relevance for their specific purposes.

Spatial Reference Coordinate Reference System: WGS 84 (EPSG: 4326)