Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4RV callsign genealogy
Currently held by COOLEY, 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 KW4RV's current licensee, walking backwards.
- COOLEY, MARK WSCgranted 2016-12-20cancelled 2019-12-07
Successor callsigns
Callsigns held now by people who previously held KW4RV.
- HASTIE, MICHAEL AVAgranted 2026-04-07
All historical holders
Every license row we've seen with the callsign KW4RV, oldest first.
- HASTIE, MICHAEL A VA2016-03-10 → cancelled 2016-03-29
- COOLEY, MARK W SC2019-12-07 active