Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CWF callsign genealogy
Currently held by Mehrer, Robert C
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 K9CWF's current licensee, walking backwards.
- Mehrer, RobertFLgranted 2023-01-10cancelled 2023-01-28
Successor callsigns
Callsigns held now by people who previously held K9CWF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CWF, oldest first.
- Mehrer, Robert C IL2007-10-29 → cancelled 2019-12-04
- mehrer, robert FL2023-01-28 active