Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4IEH callsign genealogy
Currently held by Haynes, Marc 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 K4IEH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4IEH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IEH, oldest first.
- SMART JR, OLIVER H AL1988-02-16 → cancelled 2000-02-17
- Haynes, Marc E FL2020-11-06 active