Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4QZB callsign genealogy
Currently held by Estes, James E
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 K4QZB's current licensee, walking backwards.
- Estes, James EALgranted 2012-03-27cancelled 2012-05-22
Successor callsigns
Callsigns held now by people who previously held K4QZB.
No current licensee on record previously held this callsign.