Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9AMF callsign genealogy
Currently held by Gerth, Kevin 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 W9AMF's current licensee, walking backwards.
- Gerth, Kevin JWIgranted 2020-10-28cancelled 2021-03-19
Successor callsigns
Callsigns held now by people who previously held W9AMF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9AMF, oldest first.
- Chichester, Jack R TX2007-04-11 → cancelled 2019-06-26
- Gerth, Kevin J WI2021-03-19 active