Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF5S callsign genealogy
Currently held by KEITH, JOE B
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 KF5S's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF5S.
- KEITH, JOE BOKgranted 2000-07-26cancelled 2000-09-06
All historical holders
Every license row we've seen with the callsign KF5S, oldest first.
- KEITH, JOE B OK1997-02-12 → cancelled 2000-07-26
- KEITH, JOE B TX2020-08-05 active