Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ESF callsign genealogy
Currently held by PERKINS, JACK G
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 K5ESF's current licensee, walking backwards.
- Bird, Bradley ATXgranted 2019-06-25cancelled 2019-08-17
Successor callsigns
Callsigns held now by people who previously held K5ESF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5ESF, oldest first.
- PERKINS, JACK G OK2007-04-26 → cancelled 2019-07-18
- Bird, Bradley A TX2019-08-17 active