Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RRM callsign genealogy
Currently held by FLORIDA RAILROAD MUSEUM AMATEUR RADIO CLUB
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 K4RRM's current licensee, walking backwards.
- KO4CEAcancelledFLORIDA RAILROAD MUSEUM AMATEUR RADIO CLUBFLgranted 2020-02-25cancelled 2020-03-17
Successor callsigns
Callsigns held now by people who previously held K4RRM.
No current licensee on record previously held this callsign.