Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4RCA callsign genealogy
Currently held by MASSENET, MICHAEL R
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 KF4RCA's current licensee, walking backwards.
- JOHNSON, LOUIS AGAgranted 2005-08-09cancelled 2012-06-29
Successor callsigns
Callsigns held now by people who previously held KF4RCA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4RCA, oldest first.
- MASSENET, MICHAEL R SC1997-04-24 → cancelled 2009-04-25
- JOHNSON, LOUIS A GA2022-07-08 active