Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0RRC callsign genealogy
Currently held by MARCUM, EARL G
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 K0RRC's current licensee, walking backwards.
- DAVIS, HOWARD GCOgranted 2000-05-05cancelled 2009-06-05
Successor callsigns
Callsigns held now by people who previously held K0RRC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0RRC, oldest first.
- MARCUM, EARL G UT1997-05-15 → cancelled 2009-05-16
- DAVIS, HOWARD G CO2009-06-05 → cancelled 2021-06-07