Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JPK callsign genealogy
Currently held by Keller III, John P
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 W4JPK's current licensee, walking backwards.
- KELLY, JERRY PGAgranted 2014-08-26cancelled 2022-06-22
Successor callsigns
Callsigns held now by people who previously held W4JPK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JPK, oldest first.
- Keller III, John P FL2008-08-08 → cancelled 2020-10-28
- KELLY, JERRY P GA2022-06-22 active