Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4FFN callsign genealogy
Currently held by Allen, Harold 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 N4FFN's current licensee, walking backwards.
- Allen, Harold EOKgranted 2020-07-16cancelled 2020-08-04
Successor callsigns
Callsigns held now by people who previously held N4FFN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4FFN, oldest first.
- DE FUSCO, LOUIS F GA1999-11-17 → cancelled 2011-11-18
- Allen, Harold E OK2020-08-04 active