Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4CK callsign genealogy
Currently held by CROWELL, THOMAS P
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KU4CK's current licensee, walking backwards.
- KU4BOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KU4CK.
- CROWELL, THOMAS PGAgranted 2023-08-08