Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JP callsign genealogy
Currently held by Glazier, Woodrow 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 K4JP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4JP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4JP, oldest first.
- PALMER, JOHN E FL2016-04-07 → cancelled 2024-03-05
- Glazier, Woodrow R NC2026-02-24 → cancelled 2026-03-19
- Pratt, John S NC2026-04-14 active