Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4KPZ callsign genealogy
Currently held by JOHNSON JR, RUSSELL
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 K4KPZ's current licensee, walking backwards.
- JOHNSON JR, RUSSELLNCgranted 2025-11-21cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held K4KPZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4KPZ, oldest first.
- CAIN, JAMES E GA1996-01-30 → cancelled 2008-01-31
- JOHNSON JR, RUSSELL NC2009-04-14 → cancelled 2021-04-15
- JOHNSON JR, RUSSELL NC2025-12-09 active