Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4ZRX callsign genealogy
Currently held by Armistead, Allen
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 K4ZRX's current licensee, walking backwards.
- Armistead Jr, Charles AFLgranted 2000-06-09cancelled 2000-07-01
Successor callsigns
Callsigns held now by people who previously held K4ZRX.
No current licensee on record previously held this callsign.