Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RGB callsign genealogy
Currently held by ROCKWOOD, MARK W
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 K1RGB's current licensee, walking backwards.
- Rockwood, Mark WMEgranted 2003-06-11cancelled 2004-03-26
Successor callsigns
Callsigns held now by people who previously held K1RGB.
No current licensee on record previously held this callsign.