Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5OFF callsign genealogy
Currently held by WHITAKER, ZACHARY A
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 K5OFF's current licensee, walking backwards.
- WHITAKER, ZACHARY ATXgranted 2010-05-28cancelled 2020-02-14
Successor callsigns
Callsigns held now by people who previously held K5OFF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5OFF, oldest first.
- DEWVALL, ERIC A TX1988-09-13 → cancelled 2000-09-14
- WHITAKER, ZACHARY A TX2020-02-14 active