Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC4ZMO callsign genealogy
Currently held by RAMEY, DARRELL K
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 KC4ZMO's current licensee, walking backwards.
- RAMEY, DARRELL KSCgranted 2018-10-15cancelled 2018-11-02
Successor callsigns
Callsigns held now by people who previously held KC4ZMO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4ZMO, oldest first.
- RAMEY, DARRELL K AL2003-06-05 → cancelled 2015-06-06
- RAMEY, DARRELL K SC2018-11-02 active