Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4HO callsign genealogy
Currently held by FOWLER, HARRY O
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 N4HO's current licensee, walking backwards.
- Geist, Glenn RFLgranted 2004-08-20cancelled 2006-03-04
Successor callsigns
Callsigns held now by people who previously held N4HO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4HO, oldest first.
- FOWLER, HARRY O GA1996-11-04 → cancelled 1999-02-21
- GEIST, GLENN R FL2026-01-22 active