Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4ZAG callsign genealogy
Currently held by Efird, Steve D
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 KK4ZAG's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4ZAG.
- Efird, Steve DNCgranted 2017-08-22