Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4UAP callsign genealogy
Currently held by Hall, Halen L
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 K4UAP's current licensee, walking backwards.
- Hall, Halen LALgranted 2023-07-18cancelled 2023-08-08
Successor callsigns
Callsigns held now by people who previously held K4UAP.
- Hall, Halen LALgranted 2025-02-11