Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RWM callsign genealogy
Currently held by WILLIAMSON JR, CLARENCE S
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 K1RWM's current licensee, walking backwards.
- MEISTER, ROBERT WCTgranted 2020-08-07
Successor callsigns
Callsigns held now by people who previously held K1RWM.
- MEISTER, ROBERT WCTgranted 2020-08-07
All historical holders
Every license row we've seen with the callsign K1RWM, oldest first.
- WILLIAMSON JR, CLARENCE S AL2003-12-29 → cancelled 2016-01-19
- MEISTER, ROBERT W CT2020-02-01 → cancelled 2020-08-07