Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4PLK callsign genealogy
Currently held by Keesee, Patrick L
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 N4PLK's current licensee, walking backwards.
- Keesee, Patrick LKYgranted 2022-12-14cancelled 2023-01-04
Successor callsigns
Callsigns held now by people who previously held N4PLK.
- RADER, CRAIGVAgranted 2018-04-20cancelled 2024-06-04
All historical holders
Every license row we've seen with the callsign N4PLK, oldest first.
- RADER, CRAIG IL2012-08-08 → cancelled 2018-04-20
- Keesee, Patrick L KY2023-01-04 active