Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4MAX callsign genealogy
Currently held by MCNULTY, RICHARD 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 KR4MAX's current licensee, walking backwards.
- Astor, RhondaNCgranted 2025-12-16cancelled 2026-01-09
Successor callsigns
Callsigns held now by people who previously held KR4MAX.
- MCNULTY, RICHARD ANCgranted 2023-12-15cancelled 2024-11-16
All historical holders
Every license row we've seen with the callsign KR4MAX, oldest first.
- MCNULTY, RICHARD A NC2022-08-02 → cancelled 2023-12-15
- Astor, Rhonda NC2026-01-09 active