Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4UJ callsign genealogy
Currently held by Mace, Thomas C
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 AF4UJ's current licensee, walking backwards.
- MACE, THOMAS CALgranted 1998-12-03cancelled 2000-05-20
Successor callsigns
Callsigns held now by people who previously held AF4UJ.
- Mace, Thomas CMSgranted 2010-12-04cancelled 2017-06-20