Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF5V callsign genealogy
Currently held by Marcus MD, John 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 KF5V's current licensee, walking backwards.
- MARCUS, JOHN WNJgranted 2015-06-03cancelled 2017-09-23
Successor callsigns
Callsigns held now by people who previously held KF5V.
- Mann, Thomas AMSgranted 2025-07-11
All historical holders
Every license row we've seen with the callsign KF5V, oldest first.
- SCANLON JR, LEO J MS1992-12-22 → cancelled 2004-12-23
- MANN, THOMAS A MS2006-05-31 → cancelled 2015-09-01
- Marcus MD, John W FL2017-09-23 active