Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB5TK callsign genealogy
Currently held by Hamilton, Mike
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 KB5TK's current licensee, walking backwards.
- Hamilton, MikeOKgranted 2013-08-13cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held KB5TK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB5TK, oldest first.
- CROWDER, CLIFTON S FL1998-03-19 → cancelled 2009-03-11
- Hamilton, Mike OK2023-07-29 active