Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4KPU callsign genealogy
Currently held by Frazier, Dennis R
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 K4KPU's current licensee, walking backwards.
- Frazier, Dennis RTNgranted 2020-11-13cancelled 2020-12-04
Successor callsigns
Callsigns held now by people who previously held K4KPU.
- Frazier, Dennis RTNgranted 2021-12-11
All historical holders
Every license row we've seen with the callsign K4KPU, oldest first.
- ANDERSON, JOHN H FL1997-06-16 → cancelled 2009-06-17
- Frazier, Dennis R TN2020-12-04 → cancelled 2021-12-11