Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3FHM callsign genealogy
Currently held by ALLEN, DOUGLAS W
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 N3FHM's current licensee, walking backwards.
- Allen, Douglas WFLgranted 2025-03-28cancelled 2025-04-19
Successor callsigns
Callsigns held now by people who previously held N3FHM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3FHM, oldest first.
- ALLEN, DOUGLAS W MD2007-02-13 → cancelled 2019-02-14
- Allen, Douglas W FL2025-04-19 active