Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TNF callsign genealogy
Currently held by PHILLIPS, WOODROW C
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 K4TNF's current licensee, walking backwards.
- Davis, Robert GSCgranted 1999-12-07cancelled 2004-06-11
Successor callsigns
Callsigns held now by people who previously held K4TNF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TNF, oldest first.
- PHILLIPS, WOODROW C SC1996-06-05 → cancelled 2004-01-05
- Davis, Robert G SC2024-08-14 active