Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6ZP callsign genealogy
Currently held by FRATER, GROVER A
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 K6ZP's current licensee, walking backwards.
- Calman, Andrew FCAgranted 2018-09-20cancelled 2019-09-06
Successor callsigns
Callsigns held now by people who previously held K6ZP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6ZP, oldest first.
- FRATER, GROVER A CA1998-12-10 → cancelled 1999-10-09
- Farmer, Dale E CA2008-04-29 → cancelled 2017-07-21
- Calman, Andrew F CA2019-09-06 active