Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4NHA callsign genealogy
Currently held by JOHNSON, MAURICE C
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 KD4NHA's current licensee, walking backwards.
- JOHNSON, MAURICE CNCgranted 2019-04-26cancelled 2019-05-17
Successor callsigns
Callsigns held now by people who previously held KD4NHA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4NHA, oldest first.
- JOHNSON, MAURICE C NC1992-04-21 → cancelled 2004-04-22
- JOHNSON, MAURICE C NC2019-05-17 active