Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4CTB callsign genealogy
Currently held by GARDNER, PHIL 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 KK4CTB's current licensee, walking backwards.
- GARDNER, PHIL SSCgranted 2008-06-18cancelled 2011-06-20
Successor callsigns
Callsigns held now by people who previously held KK4CTB.
- GARDNER, PHIL SSCgranted 2021-06-18