Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4TWF callsign genealogy
Currently held by OLAH, DONALD 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 N4TWF's current licensee, walking backwards.
- Franklin, Thomas WALgranted 2026-08-04cancelled 2026-08-25
Successor callsigns
Callsigns held now by people who previously held N4TWF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TWF, oldest first.
- OLAH, DONALD E VA1992-05-12 → cancelled 2004-05-13
- French, Anthony W KY2011-04-05 → cancelled 2023-04-06
- Franklin, Thomas W AL2026-08-25 active