Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4ZVI callsign genealogy
Currently held by MCGAHA, JOHN T
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 KF4ZVI's current licensee, walking backwards.
- MCGAHA, JOHN TNCgranted 2013-07-08cancelled 2022-03-25
Successor callsigns
Callsigns held now by people who previously held KF4ZVI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4ZVI, oldest first.
- MC GAHA, JOHN T NC1998-08-20 → cancelled 2010-08-21
- MCGAHA, JOHN T NC2022-03-25 active