Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6RJC callsign genealogy
Currently held by COOMLER, ROBERT J
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 W6RJC's current licensee, walking backwards.
- Ramirez, RogelioCAgranted 2020-03-04cancelled 2020-03-24
Successor callsigns
Callsigns held now by people who previously held W6RJC.
- COOMLER, ROBERT JAZgranted 2019-05-24
All historical holders
Every license row we've seen with the callsign W6RJC, oldest first.
- COOMLER, ROBERT J CA2000-09-29 → cancelled 2009-08-07
- Ramirez, Rogelio CA2020-03-24 active