Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF0RTW callsign genealogy
Currently held by Schuurman, JoAnn M
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 KF0RTW's current licensee, walking backwards.
- Schuurman, JoAnn MMNgranted 2024-06-04cancelled 2024-09-27
Successor callsigns
Callsigns held now by people who previously held KF0RTW.
No current licensee on record previously held this callsign.